Class of Stock [Axis] Common Stock, par value $0.0001 per share [Member] Warrants to purchase shares of Common Stock[Member] Convertible Preferred Stock [Member] Equity Components [Axis] Preferred Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Treasury Stock, Common [Member] Share Subscription Receivable [Member] Retained Earnings [Member] AOCI Attributable to Parent [Member] Revision of Prior Period [Axis] Previously Reported [Member] Change in Reporting Entity, Adjustment [Member] Statistical Measurement [Axis] Maximum [Member] Minimum [Member] Concentration Risk Type [Axis] Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Accounts Receivable [Member] Customer [Axis] Three Customers [Member] Revenue Benchmark [Member] Four Customers [Member] Supplier Concentration Risk [Member] Accounts Payable [Member] Two Suppliers [Member] Geographical [Axis] NEPAL UNITED STATES Measurement Input Type [Axis] Measurement Input, Risk Free Interest Rate [Member] Measurement Input, Expected Term [Member] Measurement Input, Annualized Volatility [Member] Measurement Input, Expected Dividend Rate [Member] Measurement Input, Share Price [Member] Related and Nonrelated Parties [Axis] Dolma Impact Fund I [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Measurement Frequency [Axis] Fair Value, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Financial Instrument [Axis] Related Party Convertible Notes Payable At Fair Value [Member] January 2024 Convertible Notes [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Master License And Services Agreement [Member] Vesting [Axis] Share-Based Payment Arrangement, Tranche One [Member] Share-Based Payment Arrangement, Tranche Two [Member] Share-Based Payment Arrangement, Tranche Three [Member] Long-Term Debt, Type [Axis] Convertible Notes Payable Current [Member] Related Party Loan Payable [Member] Debt Instrument [Axis] August 2026 Convertible Promissory Notes Agreement [Member] Warrant [Member] August 2026 Convertible Note [Member] Class of Warrant or Right [Axis] Second Warrant Amendment [Member] September 2024 Convertible Note [Member] Common Stock Warrants [Member] Sale of Stock [Axis] Award Type [Axis] Share-Based Payment Arrangement, Option [Member] SPAC Public and Private Placement Warrants [Member] Equity Shares Warrant [Member] Restricted Stock Units (RSUs) [Member] Non-US [Member] Product and Service [Axis] AI Solutions [Member] AI Education Services [Member] Plan Name [Axis] 2023 Plan [Member] 2023 Equity Incentive Plan [Member] 2025 Omnibus Equity Incentive Plan [Member] Title and Position [Axis] Employees [Member] Location, Statement of Income, Balance [Axis] Statement Of Income Location Balances [Axis] Cost of Revenue [Member] 2026 [Member] 2027 [Member] 2028 [Member] Antidilutive Securities [Axis] Equity Share Warrant [Member] Convertible Debt Securities [Member] Detachable Common Stock Purchase Warrants [Member] Derivative Instrument [Axis] Equity Option [Member] Second Agreement [Member] Legal Entity [Axis] Fusemachines Inc [Member] Vendor [Member] Dentons USLLP [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Payment Plan Agreement [Member] Donnelley Financial LLC [Member] Work Labor and Services Agreement [Member] Settlement Agreement [Member] Former Service Provider [Member] Business Oxygen Private Limited Purchase Agreement [Member] January 2024 Related Party Pledge Agreement [Member] Related Party [Member] Executiv Employee [Member] Another Executive Employee [Member] Investment, Name [Axis] CSLM Public Stockholders Sponsor and Related Parties of Sponsor [Member] Unrelated Third Parties [Member] Nonconsolidated Investees, Other [Member] Legacy Fusemachines [Member] CSLM Acquisition Corp [Member] Class A and Class B Ordinary Shares [Member] Convertible Note Agreement [Member] Business Combination [Axis] 3rd Amended and Restated Promissory Note [Member] Common Class A [Member] IPO [Member] PIPE Financing [Member] Class A & Class B Common Stock [Member] Consilium Frontier Equity Fund LP [Member] Forward Purchase Agreement [Member] Forward Purchase Agreement After [Member] Forward Purchase Agreement Before [Member] Termination 1 [Member] Termination 2 [Member] Private Warrants [Member] Public Warrants [Member] Vendors [Member] Statement [Table] Statement [Line Items] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Statement of Financial Position [Abstract] Assets Current assets: Cash and cash equivalents Accounts receivable, net Unbilled revenue Prepaid expenses and other current assets Customer incentive asset, current Total current assets Property and equipment, net Customer incentive asset, non-current Intangible assets, net Deferred tax assets Operating lease right-of-use assets Other assets Total assets Liabilities and stockholders’ deficit Current liabilities: Accounts payable Accrued expenses and other current liabilities Convertible notes payable, current Related party loan payable, current Forward purchase derivative liability Operating lease liability, current Short term debt Cumulative mandatorily redeemable common and preferred stock liability, current Total current liabilities Accounts payable non-current Warrant liability Cumulative mandatorily redeemable common and preferred stock liability, non-current Operating lease liability Total liabilities Commitments and Contingencies Stockholder’s deficit: Convertible preferred stock ($0.0001 par value, 5,000,000 shares authorized as of September 30, 2026 and December 31, 2025, respectively; Nil shares issued as of September 30, 2026 and December 31, 2025, respectively; Nil shares outstanding as of September 30, 2026 and December 31, 2025) Common stock ($0.0001 par value, 500,000,000 shares authorized as of September 30, 2026 and December 31, 2025; 32,424,711 shares and 28,938,266 shares issued and outstanding as of September 30,2026 and December 31, 2025, respectively) Additional paid in capital Share subscription receivable Accumulated deficit Accumulated other comprehensive income Total stockholders’ deficit Total liabilities and stockholders’ deficit Convertible preferred stock, par value Convertible preferred stock, shares authorized Convertible preferred stock, shares issued Convertible preferred stock, shares outstanding Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Revenue Cost of revenue Gross Profit Operating expenses: Selling and marketing General and administrative Research and development Total operating expenses Loss from operations Other (expense) income: Interest expense Loss on extinguishment of convertible notes payable Gain on extinguishment of payable Gain/(loss) on change in fair value of convertible notes and warrant liability Loss on change in fair value of forward purchase derivative liability Other (expense) income Total other (expense)/income, net Loss before income taxes Provision for income tax Net loss Deemed dividend related to Shortfall Warrants modification Net loss attributable to common stockholders (i) Weighted-average common shares outstanding - basic Weighted-average common shares outstanding - diluted Net loss per common share - basic Net loss per common share - diluted Other Comprehensive income (loss) Change in foreign currency translation adjustment Total comprehensive loss Balance Balance, shares Balance, shares Stock-based compensation Net loss Issuance of common stock upon exercise of Restricted stock units option Issuance of common stock upon exercise of Restricted stock units option, shares Settlement proceeds on account of partial early termination of forward contract (Refer note 15) Adjustment of share subscription receivable on account of partial early termination of forward contract (Refer note 15) Issuance of common stock as consideration payable to customer (Refer note 4) Issuance of common stock as consideration payable to customer (Refer note 4), shares Warrants issued in connection with new Convertible Notes (Refer note 6) Deemed dividend related to Shortfall Warrants modification (Refer note 16) Issuance of common stock to settle outstanding severance pay of employees (Refer note 9) Issuance of common stock to settle outstanding severance pay of employees (Refer note 9), shares Issuance of common stock to settle outstanding invoices of vendor (Refer note 18) Issuance of common stock to settle outstanding invoices of vendor (Refer note 18), shares Foreign currency translation Issuance of common stock upon cashless exercise Issuance of common stock upon cashless exercise, shares Shares withheld related to cashless exercise Shares withheld related to cashless exercise, shares Issuance of common stock upon cashless exercise of stock option Issuance of common stock upon cashless exercise of stock option, shares Issuance of common stock upon exercise of stock option Issuance of common stock upon exercise of stock option, shares Issuance of common stock upon cashless exercise of Restricted stock unit’s option Issuance of common stock upon cashless exercise of Restricted stock unit's option, shares Shortfall warrant amendment (Refer note 16) Loss for extinguishment of convertible notes payable Issuance of shares upon repayment of 2023 Promissory Notes Issuance of shares upon repayment of 2023 Promissory Notes, shares Balance Balance, shares Balance, shares Statement of Cash Flows [Abstract] Cash flows from operating activities Net Loss Adjustments to reconcile net loss to net cash used in operating activities: Depreciation of property and equipment Amortization of intangible asset Amortization of customer incentive asset Provision for credit losses Stock-based compensation Amortization of right-of-use assets Amortization of convertible note discount Changes in fair value of convertible notes at fair value and warrant liability Change in fair value of forward purchase derivative liability Accretion of cumulative mandatorily redeemable common and preferred stock liability Loss on extinguishment of debt Gain on extinguishment of payable Unrealized foreign exchange gain/(loss) Changes in operating assets and liabilities: Accounts receivable, current, net Unbilled revenue Prepaid expenses and other current assets Accounts receivable, net Other assets Accounts payable Operating lease liabilities Accrued expenses and other current liabilities Deferred revenue Net cash used in operating activities Cash flows from investing activities Costs capitalized for internally developed software Purchases of property and equipment Net cash used in investing activities Cash flows from financing activities Proceeds from Convertible notes payable, current  Repayment of Convertible notes payable, current Proceeds received from sales of forward purchase agreement shares  Payment of director and officer insurance liability (short term debt) Proceeds from director and officer insurance liability (short term debt) Payment of deferred transaction costs Net cash (used in) / provided by financing activities Effect of exchange rate changes on cash and cash equivalents Net change in cash and cash equivalents Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Supplemental disclosures of cash flow information Cash paid for income taxes Cash paid for interest Non-cash investing and financing activities: Deemed dividend related to shortfall warrant modification Common Stock issued upon cashless exercise of stock options Unpaid deferred transaction costs as of the end of the period Waiver of deferred transaction costs as of the end of the period Issuance of shares vested upon repayment and forgiveness of 2023 Promissory Notes Warrants issues in connection with new Convertible Notes (Refer note 6) Shortfall warrant amendment (Refer note 16) Issuance of common stock as consideration payable to customer (Refer note 4) Issuance of common stock to settle outstanding severance pay of employees (Refer note 9) Issuance of common stock to settle outstanding invoices of vendor (Refer note 18) Adjustment of share subscription receivable on account of partial early termination of forward contract (Refer note 15) (Loss)/Gain on extinguishment of debt Pay vs Performance Disclosure [Table] Executive Category [Axis] Individual [Axis] Adjustment to Compensation [Axis] Measure [Axis] Pay vs Performance Disclosure, Table Company Selected Measure Name Named Executive Officers, Footnote Peer Group Issuers, Footnote Changed Peer Group, Footnote PEO Total Compensation Amount PEO Actually Paid Compensation Amount Adjustment To PEO Compensation, Footnote Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Compensation Actually Paid Amount Adjustment to Non-PEO NEO Compensation Footnote Equity Valuation Assumption Difference, Footnote Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Company Selected Measure Total Shareholder Return Vs Peer Group Compensation Actually Paid vs. Other Measure Tabular List, Table Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net Income (Loss) Company Selected Measure Amount Other Performance Measure, Amount Adjustment to Compensation, Amount PEO Name Name Non-GAAP Measure Description Additional 402(v) Disclosure Pension Benefits Adjustments, Footnote Equity Awards Adjustments, Footnote Erroneously Awarded Compensation Recovery [Table] Restatement Determination Date [Axis] Restatement Determination Date Aggregate Erroneous Compensation Amount Erroneous Compensation Analysis Stock Price or TSR Estimation Method Outstanding Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Not Yet Determined Name Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery, Explanation of Impracticability Name Compensation Amount Restatement does not require Recovery Awards Close in Time to MNPI Disclosures [Table] Award Timing MNPI Disclosure Award Timing Method Award Timing Predetermined Award Timing MNPI Considered Award Timing, How MNPI Considered MNPI Disclosure Timed for Compensation Value Awards Close in Time to MNPI Disclosures, Table Name Underlying Securities Exercise Price Fair Value as of Grant Date Underlying Security Market Price Change Insider Trading Arrangements [Line Items] Material Terms of Trading Arrangement Name Title Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted Adoption Date Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated Termination Date Expiration Date Arrangement Duration Aggregate Available Non-Rule 10b5-1 Arrangement Modified Non-Rule 10b5-1 Arrangement Modified Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Not Adopted Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Accounting Policies [Abstract] Summary of Significant Accounting Policies Fair Value Disclosures [Abstract] Fair Value Measurements Intangible Asset, Goodwill and Other [Abstract] Customer Incentive Asset Payables and Accruals [Abstract] Accrued Expenses and Other Current Liabilities Debt Disclosure [Abstract] Debt Equity [Abstract] Stockholder’s Deficit Revenue from Contract with Customer [Abstract] Revenue Share-Based Payment Arrangement [Abstract] Stock-based Compensation Earnings Per Share [Abstract] Net loss per share Income Tax Disclosure [Abstract] Income Taxes Commitments and Contingencies Disclosure [Abstract] Commitment and Contingencies Related Party Transactions [Abstract] Related Parties Reverse Capitalization Reverse Capitalization Forward Purchase Agreement Forward Purchase Agreement Shortfall Warrant Shortfall warrant Public And Private Warrants Public and Private Warrants Settlement Of Vendor Payables Through Issuance Of Common Stock Settlement of Vendor Payables through Issuance of Common Stock Subsequent Events [Abstract] Subsequent Events Basis of Presentation and Principles of Consolidation Unaudited Interim Financial Information Prior Period Reclassifications Use of Estimates Segment reporting Impairment of Long-Lived Assets Revenue Recognition Stock-Based Compensation Advertising Cost Commitments and Contingencies Risks and Uncertainties Going Concern Net Loss per Share Forward purchase derivative liability Emerging Growth Company (EGC) Debt Issuance Costs Recent Accounting Pronouncements New Accounting Pronouncements Not Yet Adopted Schedule of Long-lived Assets, Based on Geographic Region Schedule of Financial Instruments Recorded at Fair Value on a Recurring Basis Schedule of Change in Fair Value of Warrant Liability Schedule of Reconciliation of Forward Purchase Derivative Liability Schedule of Change in Fair Value of the Convertible Notes at Fair Value Schedule of Accrued Expenses and Other Current Liabilities Schedule of Long-Term Debt Schedule of Reserved Shares of Common Stock for Future Issuance Schedule of Revenues, Based on Customer’s Location Schedule of Revenues, Based on Customer’s Service Type Schedule of Contract Assets, Deferred Revenue and Unbilled Revenue Schedule of Stock-based Compensation Expense Schedule of Stock Option Activity for Options with Service-based Vesting Schedule of Restricted Stock Units Expense Schedule of Restricted Stock Units Activity Schedule of Nonvested Restricted Stock Vests Schedule of Basic and Diluted Net Loss Per Share Schedule of Outstanding Shares of Potentially Dilutive Securities Schedule of Overall Voting Interest on Closing Date Schedule of Reverse Recapitalization Schedule of Fund Flow Reconciliation Schedule of Shares Terminated Schedule of Subscription Receivable Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items] Total long-lived assets Nature of Operation, Product Information, Concentration of Risk [Table] Product Information [Line Items] Number of operating segment Advertising costs Concentration risk, percentage Cash Cash for operating activities Accumulated deficit Fair Value, off-Balance-Sheet Risk [Table] Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Liabilities: Warrant Liability Liabilities Warrant liability, beginning balance Change in fair value of warrant liabilities Warrant liability, ending balance Forward purchase derivative liability, beginning balance Change in fair value of forward purchase derivative liabilities Adjustment to forward purchase derivative liabilities on account of partial early termination of forward contract (Refer note 15) Forward purchase derivative liability, ending balance Convertible notes at fair value, beginning balance Change in fair value of related party convertible note, convertible notes at fair value Convertible notes at fair value, ending balance Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Convertible note payable Reclassification from convertible note payable Derivative liability, measurement input Warrant liability, measurement input Converted shares Note payable Related party note payable Collaborative Arrangement and Arrangement Other than Collaborative [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Purchase software Shares issued for services Stock value for services Amortization expense Carrying amount Wages payable Legal expenses Interest payable Accrued expenses Total accrued expenses and other current liabilities Schedule of Long-Term Debt Instruments [Table] Debt Instrument [Line Items] Long term debt, current Long term debt, noncurrent Long term debt Short-Term Debt [Table] Short-Term Debt [Line Items] Principal amount Cash Discount amount Simple interest percent Debt instrumental conversion price Debt conversion description Purchase of shares price Proceeds from transaction cost Financing receivable percent Common stock exercise price Debt instrumental principal amount Credit yield percent Transaction costs Line of credit facility description Incremental fair value Financing warrants issued description Effective interest rate Repayments of Notes Payable Convertible Notes Payable, Current Warrant to purchase Common stock warrants outstanding purchase shares Common stock exercise price Contractual term Common stock warrant liability Related party loan payable Stock, Class of Stock [Table] Class of Stock [Line Items] Reserved shares of common stock for future issuance. Issuance of warrants pursuant to conversion of convertible note (refer note 6) Preferred stock, shares authorized Purchase of common stock warrants outstanding Exercise price Contractual term Disaggregation of Revenue [Table] Disaggregation of Revenue [Line Items] Total revenue Contract asset, beginning balance Deferred revenue, beginning balance Unbilled Revenue, beginning balance Contract assets, Increase/(decrease), net Contract assets, Increase/(decrease), net Contract assets, Increase/(decrease), net Contract asset, ending balance Deferred revenue, ending balance Unbilled Revenue, beginning balance Deferred revenue recognized Deferred revenue Capitalized contract cost Other assets Capitalized contract cost amortization Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Total stock-based compensation expense Number of Options, Outstanding beginning balance Weighted Average Exercise Price, Outstanding beginning balance Weighted Average Remaining Contractual Term (Years), Outstanding balance Aggregate Intrinsic Value, Outstanding beginning balance Number of Options, Granted Weighted Average Exercise Price, Granted Number of Options, Exercised Weighted Average Exercise Price, Exercised Number of Options, Forfeited Weighted Average Exercise Price, Forfeited Number of Options, Exercised Weighted Average Exercise Price, Exercised Number of Options, Expired Weighted Average Exercise Price, Expired Number of Options, Outstanding ending balance Weighted Average Exercise Price, Outstanding ending balance Aggregate Intrinsic Value, Outstanding ending balance Number of Options, Options vested and exercisable ending balance Weighted Average Exercise Price, Options vested and exercisable ending balance Weighted Average Remaining Contractual Term (Years), Options vested and exercisable balance Aggregate Intrinsic Value, Options vested and exercisable ending balance Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Stock option exercised Cost of revenue Total restricted stock units expense Number of RSU shares, Opening balance Weighted Average Grant Date Fair Value, Opening balance Number of RSU shares, Opening balance Weighted Average Grant Date Fair Value, Opening balance Number of RSU shares, Vested Weighted Average Grant Date Fair Value, Vested Number of RSU shares, Forfeited Weighted Average Grant Date Fair Value, Forfeited Number of RSU shares, Ending balance Weighted Average Grant Date Fair Value, Ending balance Number of restricted stock vests, shares Increasing the number of shares authorized for issuance Common stock were reserved for issuance Common stock were available for future grant Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Stock-based compensation expense Stock-based compensation expense not yet recognized Weighted-average period Total intrinsic value of options exercised Weighted average grant date fair value per share Stock options exercised, shares Exercise price option Issuance of shares Stock options exercised, value Stock options exercise price Number of shares, granted Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Number of shares, granted Net loss per share attributable to common stockholders Weighted-average common shares outstanding -(A) Vested shares of Restricted stock units-(B)-(Refer note below) Net loss per share attributable to Fusemachines Inc. common stockholders - basic Net loss per share attributable to Fusemachines Inc. common stockholders - diluted Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Potentially Diluted Securities Offsetting Assets [Table] Offsetting Assets [Line Items] Stock options exercised Income tax expense CommitmentsAndContingenciesDisclosureTable [Table] Legal fees Outstanding accounts payable Payment to the vendor Cash payable to the vendor Issuance shares of common stock conversion feature Asset Retirement Obligation Settlement obligation Gain loss on extinguishment Issuance of shares Convertible ratio Common stock aggregate value Outstanding obligations Monthly instalments Obligation under arrangement Cash payments Remainning share amount Non routine legal services value Gain on extinguishment of liability Outstanding obligation Discount of due balance Settlement amount Initial payment Subscription costs Unpaid settlement Non current liabilities Installment defaulted Installment not yet due Agreed to pay Payments for legal settlements Escrow account Gain on litigation settlement Sought value Outstanding payable Agreed to pay Gain on extinguishment of vendor payable Related Party Transaction [Table] Related Party Transaction [Line Items] Related Party Transaction, Purchases from Related Party Arrangement fee percentage Arrangement fee Vest over period ScheduleOfOverallVotingInterestOnClosingDateDetailsTable [Table] ScheduleOfOverallVotingInterestOnClosingDateDetailsLineItem [Line Items] Number of shares issued Ownership percentage ReverseRecapitalizationTable [Table] ReverseRecapitalizationLineItems [Line Items] Conversion ratio Conversion of common stock Aggregate shares received Common stock conversion of non-redeemable Prepayment under forward purchase agreement Repayment of promissory notes Stock issued for acquisition, shares Conversion ratio Stock issued upon conversion, shares Payments to acquire businesses gross Transaction cost Conversion of stock Converted into common stock Total shares of Fusemachines Inc. common stock issued to CSLM security holders Total shares of Fusemachines Inc. common stock outstanding immediately after the Merger Schedule Of Fund Flow Reconciliation Trust balance as of Closing date Proceeds from CSLM loan PIPE Proceeds Transfer of cash & cash equivalent of CSLM Total Available Cash (A) CSLM transaction costs Payment of Director & Officer insurance premium Prepayment under Forward Purchase Agreement Settlement of sponsor convertible note of CSLM Total Payments as of the closing date (B) Funds going to Fusemachines Inc. (classified under financing activities under Consolidated Statements of Cash Flows) (A+B) Operating assets assumed Operating liabilities assumed Initial fair value of forward purchase derivative liability Issuance of share subscription receivable Initial fair value of equity classified warrant Legacy Fusemachines transaction cost Others Net equity impact of reverse recapitalization Shares outstanding under the FPA after termination Shares terminated Termination Price per share Early Termination Amount received Less: 33% applied to prepayment of the Notes Net cash retained by the Company Balance at December 31, 2025 Cash received on account of early termination Adjustment to share subscription receivable on account of early termination of forward contract Balance at September 30, 2026 Restructuring Cost [Table] Restructuring Cost and Reserve [Line Items] Termination price description Termination price Termination amounts Termination shares Termination prepayment amount Termination balance Subscription receivables amount Share subscription receivable Shares outstanding Derivative liabilities WarrantsTable [Table] WarrantsLineItem [Line Items] Warrants purchase shares Fair value of warrants Number of shares issuable upon exercise Deemed dividend Share price Warrants shares Financing warrants issued description DisclosurePublicAndPrivateWarrantsTable [Table] Warrant outstanding DisclosureSettlementOfVendorPayablesThroughIssuanceOfCommonStockTable [Table] Agreed price per share Accounts payable and accrued expenses Subsequent Event [Table] Subsequent Event [Line Items] Subsequent Event, Description Common Stock, par value $0.0001 per share [Member] Accounts payable non current Warrant liability. Loss on extinguishment of convertible note payable. Gain on extinguishment of payable. Gain/(Loss) on change in fair value of convertible notes and warranty liability. Deemed dividend related to shortfall warrant modification. Three Customers [Member] Four Customers [Member] Two Suppliers [Member] Forward Purchase Derivative Liability [Policy Text Block] Recent Accounting Pronouncements [Policy Text Block] Reclassification from convertible note payable. Warrant liability. Share Subscription Receivable [Member] Measurement Input, Annualized Volatility [Member] Tabular disclousre of change in fair value of the convertible notes. Related Party Convertible Notes Payable At Fair Value [Member] January 2024 Convertible Notes [Member] Changes in fair value of convertible notes at fair value. Dolma Impact Fund I [Member] Stock issued during period value settlement proceeds on account of partial early termination of forward contract. Stock issued during period value adjustment of share subscription receivable on account of partial early termination of forward contract. Stock issued during period value warrants issued in connection with new convertible notes. Stock issued during period value issuance of common stock to settle outstanding severance pay of employees. Stock issued during period value issuance of common stock to settle outstanding invoices of vendor. Master License And Services Agreement [Member] Stock issued during period shares issuance of common stock to settle outstanding severance pay of employees. Stock issued during period shares issuance of common stock to settle outstanding invoices of vendor. Stock issued during period value issuance of common stock as consideration payable to customer. Stock issued during period shares issuance of common stock as consideration payable to customer. Stock issued during period value issuance of common stock upon cashless exercise. Stock issued during period shares issuance of common stock upon cashless exercise. Warrants to purchase shares of Common Stock[Member] Customer incentive asset current. Customer incentive asset noncurrent. Cumulative mandatorily redeemable common and preferred stock liability current. Cumulative mandatorily redeemable common and preferred stock liability noncurrent. Interim Financial Information Unaudited [Policy Text Block] Going Concern [Policy Text Block] Emerging Growth Company [Policy Text Block] Stock issued during period value issuance of common stock upon cashless exercise of restricted stock units option. Adjustments to additional paid in capital warrant amendment. Stock issued during period shares issuance of common stock upon cashless exercise of restricted stock units option. Loss for extinguishment of convertible notes payable. Issuance of shares upon repayment of 2023 Promissory Notes, value. Issuance of shares upon repayment of 2023 Promissory Notes, shares. Amortization of customer incentive asset. Amortization of convertible note discount. Accretion of cumulative mandatorily redeemable common and preferred stock liability. Gain loss on foreign exchange Increase decrease in unbilled revenue. Payments to costs capitalized for internally developed software. Proceeds received from sales of forward purchase agreement shares. Payment of director and officer insurance liability. Proceeds from director and officer insurance liability. Payment of deferred transaction costs. Deemed dividend related to shortfall warrant modification non-cash investing and financing activities. Unpaid deferred transaction costs as of end of period. Common stock issued upon cashless exercise of stock options. Waiver of deferred transaction costs as of end of period. Issuance of shares vested upon repayment and forgiveness of 2023 promissory notes. Warrants issues in connection with new convertible notes refer note. Gain loss on extinguishment of debt. Adjustment of share subscription receivable on account of partial early termination of forward contract refer note. Issuance of common stock to settle outstanding invoices of vendor refer note. Issuance of common stock to settle outstanding severance pay of employees. Issuance of common stock as consideration payable to customer. Warrants issues in connection with new convertible notes. Related Party Loan Payable [Member] Second Agreement [Member] Fusemachines Inc [Member] Dentons USLLP [Member] Payment Plan Agreement [Member] Donnelley Financial LLC [Member] Discount of due balance Installment defaulted Installment not yet due September 2024 Convertible Note [Member] Work Labor and Services Agreement [Member] Settlement Agreement [Member] Former Service Provider [Member] Gain on extinguishment of vendor payable. Common Stock Warrants [Member] Schedule of Reserved Shares of Common Stock for Future Issuance Table Text Block Issuance of warrants pursuant to conversion of convertible note. Contractual term. Increase decrease in unbilled receivable. Business Oxygen Private Limited Purchase Agreement [Member] Arrangement fee percentage. Arrangement fee. 2023 Plan [Member] January 2024 Related Party Pledge Agreement [Member] 2023 Equity Incentive Plan [Member] 2025 Omnibus Equity Incentive Plan [Member] Reverse Recapitalization Disclosure [Text Block] Schedule of Overall Voting Interest [Table Text Block] CSLM Public Stockholders Sponsor and Related Parties of Sponsor [Member] Unrelated Third Parties [Member] Legacy Fusemachines [Member] CSLM Acquisition Corp [Member] Class A and Class B Ordinary Shares [Member] Stock issued during period value prepaid forward purchase agreement. Convertible Note Agreement [Member] 3rd Amended and Restated Promissory Note [Member] PIPE Financing [Member] Class A & Class B Common Stock [Member] Consilium Frontier Equity Fund LP [Member] Stock issued during period shares issuance of common stock upon reverse recapitalization net of issuance costs. Stock issued during period shares stock options cashless exercise. Share based compensation arrangements by share based payment award options exercises in period weighted average cashless exercise price. Stock issued during period shares stock options cashless exercise. Tabular disclosure of share based compensation restricted stock units. 2026 [Member] 2027 [Member] 2028 [Member] Transfer of cash cash equivalent Cash available. Prepayment under forward purchase agreement. Payments as of closing date. Proceeds from reverse capitalisation. Operating assets assumed. Initial fair value of forward purchase derivative liability. Issuance of subscription receivable. Fair value adjustment of warrant Others adjustments reverse recapitalization. Net equity impact of reverse recapitalization. Forward Purchase Agreement Disclosure [Text Block] Shortfall Warrants Disclosure [Text Block] Forward Purchase Agreement [Member] Public and Private Warrants Disclosure [Text Block] Private Warrants [Member] Public Warrants [Member] Description of amendment of termination agreement. Termination price. Employees [Member] Executiv Employee [Member] Another Executive Employee [Member] Cash payments. Convertible Notes Payable Current [Member] August 2026 Convertible Promissory Notes Agreement [Member] August 2026 Convertible Note [Member] Transaction costs. Vendor [Member] Detachable common stock purchase warrants. Schedule Of Reverse Recapitalization [Table Text Block] Schedule of Fund Flow Reconciliation [Table Text Block] Settlement Of Vendor Payables Through Issuance Of Common Stock [Disclosure Text Block] Vendors [Member] Second Warrant Amendment [Member] Detachable Common Stock Purchase Warrants [Member] Termination amounts. Termination shares. Termination repayment amount. Termination balance. Subscription receivables amount. Schedule Of Shares Terminated [Table Text Block] Termination One [Member] Termination Two [Member] Shares terminated. Termination price per share. Early termination amount received. Termination prepayment of notes. Net cash retained by company. Forward Purchase Agreement Before [Member] Forward Purchase Agreement After [Member] Schedule Of Subscription Receivable [Table Text Block] Share subscription receivable. Cash received on account of early termination. Adjustment to share subscription receivable on account of early termination of forward contract. Share based compensation arrangement by share based payment award equity instruments other than options grants in period remaining shares. Share based compensation arrangement by share based payment award equity instruments other than option vested in period. Class of warrant or right reason for issuing to nonemployee. SPAC Public and Private Placement Warrants [Member] Equity Shares Warrant [Member] AI Solutions [Member] AI Education Services [Member] Statement Of Income Location Balances [Axis] Cost of Revenue [Member] Equity Share Warrant [Member] Non Rule 10B51 Arr Modified Flag. Rule 10B51 Arr Modified Flag Gain on extinguishment of liability. Assets, Current Assets [Default Label] Liabilities, Current Liabilities Stockholders' Equity Note, Subscriptions Receivable Equity, Attributable to Parent Liabilities and Equity Gross Profit Operating Expenses Operating Income (Loss) Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Treasury Stock, Common, Shares Stock Issued During Period, Value, Other Share-Based Payment Arrangement, Noncash Expense GainLossOnForeignExchange Increase (Decrease) in Accounts Receivable IncreaseDecreaseInUnbilledRevenue Increase (Decrease) in Prepaid Expense Increase (Decrease) in Accounts and Other Receivables Increase (Decrease) in Other Current Assets Increase (Decrease) in Accounts Payable Increase (Decrease) in Accrued Liabilities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation PaymentsToCostsCapitalizedForInternallyDevelopedSoftware Payments to Acquire Property, Plant, and Equipment Cash Provided by (Used in) Investing Activity, Including Discontinued Operation PaymentOfDirectorAndOfficerInsuranceLiability PaymentOfDeferredTransactionCosts Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation WarrantsIssuesInConnectionWithNewConvertibleNotes Issuance of common stock as consideration payable to customer. IssuanceOfCommonStockToSettleOutstandingSeverancePayOfEmployees Issuance of common stock to settle outstanding invoices of vendor refer note. Adjustment of share subscription receivable on account of partial early termination of forward contract refer note. Forgone Recovery, Individual Name Outstanding Recovery, Individual Name Awards Close in Time to MNPI Disclosures, Individual Name Trading Arrangement, Individual Name NonRule10B51ArrModifiedFlag Revenue from Contract with Customer [Text Block] ReverseRecapitalizationDisclosureTextBlock ForwardPurchaseAgreementDisclosureTextBlock Commitments and Contingencies, Policy [Policy Text Block] Forward Purchase Derivative Liability [Policy Text Block] Financial Liabilities Fair Value Disclosure Debt Instrument, Fair Value Disclosure ChangesInFairValueOfConvertibleNotesAtFairValue Accounts Payable and Accrued Liabilities, Current ContractualTerm Contract with Customer, Asset, after Allowance for Credit Loss, Current Contract with Customer, Liability, Current Increase (Decrease) in Contract with Customer, Liability IncreaseDecreaseInUnbilledReceivable Deferred Revenue Other Assets Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period StockIssuedDuringPeriodSharesStockOptionsCashlessExercise ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageCashlessExercisePrice Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Restricted Stock or Unit Expense Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Payments to Suppliers Preferred Stock, Convertible, Conversion Price CashAvailable TransactionCost Payments for Reinsurance PrepaymentUnderForwardPurchaseAgreement Gain (Loss) from Litigation Settlement PaymentsAsOfClosingDate ProceedsFromReverseCapitalisation Liabilities Assumed InitialFairValueOfForwardPurchaseDerivativeLiability OthersAdjustmentsReverseRecapitalization Warrant or Right, Reason for Issuance, Description