Net Loss Per Share Attributable to Common Stockholders - Schedule of Anti-Dilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Schedule of Anti-Dilutive Securities [Line Items]
Total	11,323,338	79,829,902	11,323,338	79,829,902
Redeemable convertible preferred stock [Member]
Schedule of Anti-Dilutive Securities [Line Items]
Total		50,500,239		50,500,239
Outstanding stock options [Member]
Schedule of Anti-Dilutive Securities [Line Items]
Total	6,742,311	7,518,402	6,742,311	7,518,402
Preferred stock warrants [Member]
Schedule of Anti-Dilutive Securities [Line Items]
Total		55,154		55,154
Common stock warrants [Member]
Schedule of Anti-Dilutive Securities [Line Items]
Total	4,581,027	3,648,890	4,581,027	3,648,890
Convertible notes [Member]
Schedule of Anti-Dilutive Securities [Line Items]
Total		3,946,497		3,946,497
SAFE liabilities [Member]
Schedule of Anti-Dilutive Securities [Line Items]
Total		14,160,720		14,160,720