Document and Entity Information Document Information [Table] Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Business Contact Class of Stock [Axis] Class of Stock [Domain] ADR [Member] ADSs American depositary shares Common Class A [Member] Class A ordinary shares Common Class B [Member] Class B ordinary shares Document Information [Line Items] Document and Entity Information Document Type Document Registration Statement Document Annual Report Document Period End Date Document Fiscal Year Focus Current Fiscal Year End Date Document Transition Report Document Shell Company Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Contact Personnel Name Country Region City Area Code Local Phone Number Contact Personnel Email Address Entity Address, Address Line One Entity Address, Adress Line Two Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Country Title of 12(b) Security Trading Symbol No Trading Symbol Flag Security Exchange Name Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company Entity Ex Transition Period ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Entity Central Index Key Amendment Flag Document Fiscal Period Focus Auditor Name Auditor Location Auditor Firm ID CONSOLIDATED BALANCE SHEETS Statement [Table] Represents information pertaining to Series Seed convertible redeemable preferred shares. Series Seed Convertible Redeemable Preferred Stock [Member] Series Seed convertible redeemable preferred shares Series Seed Preferred Shares Represents information pertaining to Series Angel convertible redeemable preferred shares. Series Angel Convertible Redeemable Preferred Stock [Member] Series Angel convertible redeemable preferred shares Series Angel Preferred Shares Represents information pertaining to Series B convertible redeemable preferred shares. Series B Convertible Redeemable Preferred Stock [Member] Series B convertible redeemable preferred shares Series B Preferred Shares Represents information pertaining to Series C1 convertible redeemable preferred shares. Series C-1 Convertible Redeemable Preferred Stock [Member] Series C1 convertible redeemable preferred shares Series C1 Preferred Shares Represents information pertaining to Series C2 convertible redeemable preferred shares. Series C-2 Convertible Redeemable Preferred Stock [Member] Series C2 convertible redeemable preferred shares Series C2 Preferred Shares Statement [Line Items] CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalent Cash and cash equivalents - continuing operations Cash and cash equivalents Any certificate of deposit or savings account held by a bank or other financial institution for a period of time that is more than three months. Time Deposits, Current Time deposits Restricted Cash, Current Restricted cash Short-Term Investments Short-term investments Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net (allowance for credit losses: as of December 31, 2024: RMB2,894; as of December 31, 2025: RMB1,706) Accounts receivable, net Accounts receivable, net Prepaid Expense and Other Assets, Current Prepayments and other current assets, net Prepayments and other current assets, net Assets, Current Total current assets Assets, Noncurrent [Abstract] Non-current assets: Property, Plant and Equipment, Net Property and equipment, net Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Intangible assets, net The amount of certificates of deposits held by entity having maturity more than 12 months. Bank Deposits, Noncurrent Long-term bank deposits Operating Lease, Right-of-Use Asset Right-of-use assets Operating lease right-of use assets Deferred Income Tax Assets, Net Deferred tax assets, net Other Assets, Noncurrent Other non-current assets, net Total other non-current assets, net Assets, Noncurrent Total non-current assets Assets TOTAL ASSETS Liabilities [Abstract] LIABILITIES Liabilities, Current [Abstract] Current liabilities Accounts Payable, Current Accounts payable Contract with Customer, Liability, Current Contract liabilities Employee-related Liabilities, Current Salary and welfare payable Taxes Payable, Current Taxes payable Total Operating Lease, Liability, Current Current operating lease liabilities Less: Current operating lease liabilities Current lease liabilities Current lease liabilities Accrued Liabilities and Other Liabilities Accrued expenses and other current liabilities Total Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Non-current liabilities Operating Lease, Liability, Noncurrent Non-current operating lease liabilities Non-current lease liabilities Non-current lease liabilities Deferred Income Tax Liabilities, Net Deferred tax liabilities, net Deferred tax liabilities Liabilities, Noncurrent Total non-current liabilities Liabilities TOTAL LIABILITIES Commitments and Contingencies. Commitments and contingencies (Note 16) Temporary Equity [Abstract] MEZZANINE EQUITY: Temporary Equity, Carrying Amount, Attributable to Parent Ending balance Beginning balance TOTAL MEZZANINE EQUITY Equity, Attributable to Parent [Abstract] SHAREHOLDERS' (DEFICIT)/EQUITY: Common Stock, Value, Issued Ordinary shares Ordinary shares Additional Paid in Capital Additional paid-in capital Additional paid in capital Retained Earnings (Accumulated Deficit) Accumulated deficit Carrying amount as of the balance sheet date pertaining to statutory reserve. Statutory Reserves Statutory reserves Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income Equity, Attributable to Parent Ending balance Beginning balance TOTAL SHAREHOLDERS' (DEFICIT)/EQUITY: Liabilities and Equity TOTAL LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDERS' (DEFICIT)/EQUITY Accounts Receivable, Allowance for Credit Loss, Current Less: allowance for credit losses Allowance for credit losses Temporary Equity, Par or Stated Value Per Share Convertible redeemable preferred stock, par value (in dollars per share) Temporary Equity, Shares Authorized Convertible redeemable preferred shares, shares authorized (in shares) Temporary Equity, Shares Issued Convertible redeemable preferred shares, shares issued (in shares) Temporary Equity, Shares Outstanding Ending balance (in shares) Beginning balance (in shares) Convertible redeemable preferred shares, shares outstanding (in shares) Common Stock, Par or Stated Value Per Share Ordinary shares, par value (in dollars per share) Common Stock, Shares Authorized Ordinary shares, shares authorized (in shares) Common Stock, Shares, Issued Ending balance (in shares) Beginning balance (in shares) Ordinary shares, shares issued (in shares) Common Stock, Shares, Outstanding Ordinary shares, shares outstanding (in shares) CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME Revenue from Contract with Customer, Excluding Assessed Tax Revenues Revenue Operating Costs and Expenses [Abstract] Operating costs and expenses: Cost of Product and Service Sold Operations and support Selling and Marketing Expense Selling and marketing expenses General and Administrative Expense General and administrative expenses Research and Development Expense Research and development expenses Operating Costs and Expenses Total operating costs and expenses Nonoperating Income (Expense) [Abstract] Other income: The amount of interest income classified as non-operating. Interest Income, Non-operating Interest income Gain (Loss), Foreign Currency Transaction, before Tax Exchange gains/(losses) Amount of realized and unrealized investment income generated from wealth management products. Investment Income Investment income Other Nonoperating Income (Expense) Others, net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income tax Income before income taxes Income Tax Expense (Benefit) Income tax expenses Income tax expense Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Net income/(loss) from continuing operations Net income from continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net loss from discontinued operations Net loss from discontinued operations Net income Temporary Equity, Accretion to Redemption Value, Adjustment Accretion to preferred shares redemption value Accretion to preferred shares redemption value Net Income (Loss) Available to Common Stockholders, Basic Net (loss)/income attributable to Yuanbao Inc.'s ordinary shareholders Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Net (loss)/income from continuing operations attributable to Yuanbao Inc.'s ordinary shareholders Net (loss)/income from continuing operations attributable to ordinary shareholders of the Company for computing net (loss)/income per ordinary share - basic Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic Net loss from discontinued operations attributable to Yuanbao Inc.'s ordinary shareholders Net loss from discontinued operations attributable to ordinary shareholders of the Company Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income/(loss): Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment Foreign currency translation adjustments Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive income Amount of decrease to comprehensive net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders. Temporary Equity, Accretion To Preferred Shares Redemption Value, Adjustment Accretion to preferred shares redemption value Accretion to preferred shares redemption value Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Excludes changes in equity resulting from investments by owners and distributions to owners. Comprehensive Income (Loss), Net of Tax, Available to Common Stockholders, Basic Comprehensive (loss)/income attributable to Yuanbao Inc.'s ordinary shareholders Earnings Per Share, Basic [Abstract] Net (loss)/income attributable to the Yuanbao Inc.'s ordinary shareholders per share, basic Income (Loss) from Continuing Operations, Per Basic Share - from continuing operations Net (loss)/income per share from continuing operations attributable to ordinary shareholders of the Company, basic Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share - from discontinued operations Net loss per share from discontinued operations attributable to ordinary shareholders of the Company, basic Earnings Per Share, Diluted [Abstract] Net (loss)/income attributable to the Yuanbao Inc.'s ordinary shareholders per share, diluted Income (Loss) from Continuing Operations, Per Diluted Share - from continuing operations Net (loss)/income per share from continuing operations attributable to ordinary shareholders of the Company, diluted Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share - from discontinued operations Net loss per share from discontinued operations attributable to ordinary shareholders of the Company, diluted Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average number of ordinary shares Weighted Average Number of Shares Outstanding, Basic Basic Weighted average number of ordinary shares outstanding, basic Weighted Average Number of Shares Outstanding, Diluted Diluted Weighted average number of ordinary shares outstanding, diluted CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' DEFICIT Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Ordinary shares Additional Paid-in Capital [Member] Additional paid-in capital Represents information pertaining to statutory reserves. Statutory Reserves [Member] Statutory reserves AOCI Attributable to Parent [Member] Accumulated other comprehensive income Retained Earnings [Member] Accumulated deficit Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Amount transferred from accumulated profits to the statutory reserve. Appropriation To Statutory Reserves Appropriation to statutory reserves The amount of accretion of the preferred stock redemption during the period. Preferred Stock, Redemption Value Accretion Preferred shares redemption value accretion Accretion to preferred shares redemption value Amount of increase in additional paid in capital (APIC) resulting from the disposal of discontinued operations. Adjustments to Additional Paid in Capital, Disposal Of Discontinued Operations Disposal of discontinued operations APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Share-based compensation Stock Issued During Period, Value, Stock Options Exercised Exercise of share options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercised Exercise of share options (in shares) Value of stock issued as a result of the exercise of restricted stock awards. Stock Issued During Period, Value, Restricted Stock Awards, Vested Vesting of restricted shares Number of stock issued as a result of the exercise of restricted stock awards. Stock Issued During Period, Shares, Restricted Stock Awards, Vested Vesting of restricted shares (in shares) Stock Issued During Period, Value, New Issues Issuance of class A ordinary shares, net of issuance costs Stock Issued During Period, Shares, New Issues Issuance of Class A ordinary shares, net of issuance costs (in shares) Number of shares issued (in shares) Stock Issued During Period, Value, Conversion of Convertible Securities Conversion of convertible redeemable preferred shares to Class A ordinary shares upon IPO Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of convertible redeemable preferred shares to Class A ordinary shares upon IPO (in shares) Value of shares re-designated from ordinary shares into classes of stock. Re-Designation of Ordinary Shares into Classes, Value Re-designation of ordinary shares into Class A and Class B ordinary shares upon IPO Number of shares re-designated from ordinary shares into classes of stock. Re-Designation of Ordinary Shares into Classes, Shares Re-designation of ordinary shares into Class A and Class B ordinary shares upon IPO (in shares) CONSOLIDATED STATEMENTS OF CASH FLOWS Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net loss from discontinued operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net income from continuing operations Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net income to net cash used in operating activities: Provision for Loan, Lease, and Other Losses Expected credit losses Share-Based Payment Arrangement, Noncash Expense Share-based compensation Operating Lease, Right-of-Use Asset, Periodic Reduction Amortization of right-of-use assets Other Depreciation and Amortization Other depreciation and amortization Deferred Income Tax Expense (Benefit) Deferred income tax Deferred income tax expense Amount of unrealized gain/(loss) related to fair value change of financial instruments. Fair Value Adjustment of Financial Instruments Fair value change of financial instruments Other Noncash Income (Expense) Others, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable, net Increase (Decrease) in Prepaid Expense and Other Assets Prepayments and other current assets Increase (Decrease) in Due from Related Parties, Current Amount due from related parties Increase (Decrease) in Due to Related Parties Amount due to related parties Increase (Decrease) in Accounts Payable, Trade Accounts payable Increase (Decrease) in Operating Lease Liability Lease liabilities Increase (Decrease) in Contract with Customer, Liability Contract liabilities Increase (Decrease) in Employee Related Liabilities Salary and welfare payable Increase (Decrease) in Accrued Taxes Payable Taxes payable