Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] American depository shares American depository shares Common Class A [Member] Class A Ordinary Shares Class A Ordinary Shares Common Class B [Member] Class B Ordinary Shares Class B Ordinary Shares Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact Document Information [Line Items] Document Type Document Registration Statement Document Annual Report Document Transition Report Document Shell Company Report Document Period End Date Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Adress Line Two Contact Personnel Name Contact Personnel Email Address Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Country Country Region City Area Code Local Phone Number Title of 12(b) Security Trading Symbol No Trading Symbol Flag Security Exchange Name Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company Document Financial Statement Error Correction [Flag] ICFR Auditor Attestation Flag Document Accounting Standard Entity Shell Company Auditor Name Auditor Firm ID Auditor Location Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Line Items] Statement Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash, cash equivalents and restricted cash at end of the year Cash, cash equivalents and restricted cash at beginning of the year Cash and cash equivalents Restricted Cash, Current Restricted cash The carrying amount as on the balance sheet date of term deposits and short term investments. Time Deposits And ShortTerm Investments Time deposits and shortterm investments Total Time deposits and short-term investments Accounts Receivable, after Allowance for Credit Loss, Current Trade receivable, net of allowance for credit losses of RMB561 and RMB1,747 as of December 31, 2024 and 2025, respectively Trade receivable, net Inventory, Net Inventories Inventories, net Prepaid Expense and Other Assets, Current Prepayments and other current assets, net of allowance for credit losses of RMB3,464 and RMB4,831 as of December 31, 2024 and 2025, respectively Prepayments and other current assets Assets, Current Total current assets Assets, Noncurrent [Abstract] Noncurrent assets: Long-term Investments Longterm investments Property, Plant and Equipment, Net Property, plant and equipment, net Total property, plant and equipment, net Operating Lease, Right-of-Use Asset Operating lease rightofuse assets, net Total operating lease right-of-use assets, net Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Total intangible assets, net Goodwill Goodwill Deferred Income Tax Assets, Net Deferred tax assets Other Assets, Noncurrent Other noncurrent assets, net of allowance for credit losses of RMB5,544 and RMB4,912 as of December 31, 2024 and 2025, respectively Other noncurrent assets Assets, Noncurrent Total noncurrent assets Assets Total assets Liabilities [Abstract] LIABILITIES Liabilities, Current [Abstract] Current liabilities: Short-term Debt Short-term borrowings The carrying amount as on the balance sheet date of trade and notes payable, due within one year or the normal operating cycle, if longer. Trade And Notes Payable Current Trade and notes payable Total Total Other Liabilities, Current Amounts due to related parties Other Liability, Current, Related Party, Type [Extensible Enumeration] Contract with Customer, Liability, Current Deferred revenue, current Operating Lease, Liability, Current Operating lease liabilities, current Finance Lease, Liability, Current Finance lease liabilities, current Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other, due within one year or the normal operating cycle, if longer. Accrued Liabilities and Other Liabilities Current Accruals and other current liabilities Total Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Noncurrent liabilities: Long-term Debt, Excluding Current Maturities Long-term borrowings Contract with Customer, Liability, Noncurrent Deferred revenue, non-current Operating Lease, Liability, Noncurrent Operating lease liabilities, noncurrent Operating lease liabilities, non-current Finance Lease, Liability, Noncurrent Finance lease liabilities, non-current Deferred Income Tax Liabilities, Net Deferred tax liabilities Deferred tax liabilities Other Liabilities, Noncurrent Other noncurrent liabilities Total Liabilities, Noncurrent Total noncurrent liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies Stockholders' Equity Attributable to Parent [Abstract] SHAREHOLDERS' EQUITY Common Stock, Value, Issued Ordinary shares Ordinary Shares Treasury Stock, Common, Value Treasury shares Additional Paid in Capital Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Statutory Accounting Practices, Statutory Capital and Surplus, Balance Statutory reserves Retained Earnings (Accumulated Deficit) Retained earnings (Accumulated deficit)/Retained earnings Stockholders' Equity Attributable to Parent Total shareholders' equity Total Li Auto Inc. shareholders' equity Equity, Attributable to Noncontrolling Interest Noncontrolling interests Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance at the end of period Balance at the beginning of period Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Total liabilities and shareholders' equity Accounts Receivable, Allowance for Credit Loss, Current Accounts receivable, allowance for credit loss Allowance for credit loss of consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Prepayments and Other Current Assets, Allowance for Credit Loss Prepayments and other current assets, allowance for credit losses Allowance for credit loss of noncurrent assets classified as other. Other Assets, Noncurrent, Allowance for Credit Loss Other noncurrent assets, allowance for credit losses Common Stock, Par or Stated Value Per Share Ordinary shares, par value Common Stock, Shares Authorized Ordinary shares, shares authorized (in shares) Common Stock, Shares, Issued Balance at the end of period (in shares) Balance at the beginning of period (in shares) Ordinary shares, shares issued Number of shares issued (in shares) Common Stock, Shares, Outstanding Ordinary shares, shares outstanding Number of shares outstanding (in shares) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Product and Service [Axis] Product and Service [Domain] Vehicle sales [Member] Vehicle sales Motor vehicles Represents information pertaining to other sales and services. Other Sales And Services [Member] Services Other sales and services Revenues [Abstract] Revenues: Revenue from Contract with Customer, Excluding Assessed Tax Total revenues Revenues Cost of Revenue [Abstract] Cost of sales: Cost of Revenue Total cost of sales Cost Gross Profit Gross profit Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development Selling, General and Administrative Expense Selling, general and administrative Other Operating Income (Expense), Net Other operating income, net Operating Expenses Expenses Total operating expenses Operating Income (Loss) Loss from operations Income/(Loss) from operations Nonoperating Income (Expense) [Abstract] Other (expense)/income Interest Expense Interest expense Investment Income, Net Interest income and investment income, net Other Nonoperating Income (Expense) Others, net Other income Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income tax Income before income tax Income Tax Expense (Benefit) Income tax benefit/(expense) Income tax expense Income tax (benefit)/expense Income tax expense Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Net income Net Income (Loss) Attributable to Noncontrolling Interest Less: Net income attributable to noncontrolling interests Net Income (Loss) Available to Common Stockholders, Basic Net income attributable to ordinary shareholders of Li Auto Inc. Net income attributable to ordinary shareholders of Li Auto Inc. Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average number of ordinary shares Denominator: Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted average ordinary shares outstanding-basic (in shares) Basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Weighted average ordinary shares outstanding-diluted (in shares) Earnings Per Share Net earnings per share attributable to ordinary shareholders Earnings Per Share, Basic and Diluted Basic earnings (in per share) Basic net earnings per share attributable to ordinary shareholders of Li Auto Inc. (in per share) Earnings Per Share, Diluted Diluted earnings (in per share) Diluted net earnings per share attributable to ordinary shareholders of Li Auto Inc. (in per share) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (loss)/income Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Foreign currency translation adjustment, net of nil tax Other Comprehensive Income (Loss), Net of Tax Total other comprehensive (loss)/income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Less: Net income attributable to noncontrolling interests Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to common shareholders. Comprehensive Income (Loss), Net of Tax, Attributable to Common Shareholders Comprehensive income attributable to ordinary shareholders of Li Auto Inc. Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Foreign currency translation adjustment CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Ordinary Shares Treasury Stock, Common [Member] Treasury Shares Additional Paid-in Capital [Member] Additional Paid-in Capital AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Loss Represents the information pertaining to statutory reserves. Statutory Reserves [Member] Statutory Reserves Retained Earnings [Member] (Accumulated Deficit) Retained Earnings Noncontrolling Interest [Member] Noncontrolling Interests Increase (Decrease) in Stockholders' Equity [Roll Forward] CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Treasury Stock, Common, Shares Balance at the end of period (in shares) Balance at the beginning of period (in shares) The value of exercise of share options and vesting of RSUs. Stock Issued During Period Value Exercise of Share Options and Vesting of Rsus Exercise of share options and vesting of RSUs Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Number of Options and Shares, Exercised (in shares) Exercise of share options (Shares) Exercise of share options and vesting of RSUs (in shares) APIC, Share-based Payment Arrangement, ESPP, Increase for Cost Recognition Share-based compensation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustment, net of nil tax Foreign currency translation adjustment, net of nil tax Noncontrolling Interest, Increase from Subsidiary Equity Issuance Capital injection by noncontrolling interests Value of issuance of ordinary shares as treasury shares. Issuance of Ordinary Shares as Treasury Shares, Value Issuance of ordinary shares as treasury shares Number of ordinary shares issued as treasury shares. Issuance of Ordinary Shares as Treasury Shares, Shares Issuance of ordinary shares as treasury shares (in shares) Stock Issued During Period, Value, New Issues Share issuance upon the at-the-market equity offering program (the "ATM Offering") Share issuance upon the Hong Kong public offering ("HK IPO"), net of issuance costs (Shares)) Share issuance upon the at-the-market equity offering program (the "ATM Offering") (in shares) Amount appropriated from retained earnings to statutory reserves for entities incorporated in PRC. Appropriation of Profits to Reserves Appropriation to statutory reserves Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent Foreign currency translation adjustment Foreign currency translation adjustment, tax amount CONSOLIDATED STATEMENTS OF CASH FLOWS CASH FLOWS FROM OPERATING ACTIVITIES CASH FLOWS FROM OPERATING ACTIVITIES Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to reconcile net income to net cash provided by/(used in) operating activities: Depreciation and amortization Depreciation of property, plant and equipment, amortization of intangible assets and operating lease cost related to land use rights Share-based Payment Arrangement, Noncash Expense Share-based compensation expenses Foreign exchange loss/(gain), which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method. Foreign Exchange Loss/(Gain) Foreign exchange loss/(gain) Unrealized Gain (Loss) on Investments Interest and investment (income)/loss, net Interest expenses, which are added to or deducted from net income or loss, including the portion attributable to noncontrolling interest, to reflect cash provided by or used in operating activities, in accordance with the indirect cash flow method. Interest Expenses Interest expense Income (Loss) from Equity Method Investments Share of loss of equity method investees Amount of inventory write-downs and purchase obligation. Inventory write-downs and purchase obligation Inventory write-downs and losses on purchase commitments relating to inventory Accounts Receivable, Credit Loss Expense (Reversal) Allowance for credit losses Deferred Income Tax Expense (Benefit) Deferred income tax benefit Deferred Income Tax Expense (Benefit), Total Gain (Loss) on Disposition of Property Plant Equipment (Gain)/Loss on disposal of property, plant and equipment Changes in operating assets and liabilities: Increase (Decrease) in Prepaid Expense and Other Assets Prepayments and other current assets Increase (Decrease) in Inventories Inventories Amount of increase (decrease) in operating lease, right of use assets. Increase (Decrease) in Operating Lease, Right Of Use Assets Operating lease right-of-use assets Increase (Decrease) in Other Noncurrent Assets Other non-current assets Increase (Decrease) in Accounts Receivable Trade receivable Increase (Decrease) in Contract with Customer, Liability Deferred revenue Increase (Decrease) in Operating Lease Liabilities Operating lease liabilities Amount of increase (decrease) in trade and notes payable. Increase (Decrease) in Trade And Notes Payable Trade and notes payable