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[Axis] Liability Class [Axis] Withholding taxes on release of restricted stock units (in shares) Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Customer B Customer B [Member] Customer B Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Total cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Shareholder note receivable from Sponsor recorded at the Merger Reverse Recapitalization, Proceeds From Shareholder Note Receivable, Amount Reverse Recapitalization, Proceeds From Shareholder Note Receivable, Amount Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Employee costs Labor and Related Expense Conversion of Legacy Blaize convertible notes, Net exercise of Legacy Blaize warrants and lapse of redemption (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Total expenses incurred with related parties (3) Related Party Transaction, Amounts of Transaction Warrants issued to an advisor Warrants To Purchase Common Stock [Member] Warrants To Purchase Common Stock Customer [Domain] Customer [Domain] Schedule of Inventories, Net Schedule of Inventory, Current [Table Text Block] Net loss per share - basic (in dollars per share) Earnings Per Share, Basic Measurement Input Type [Axis] Measurement Input Type [Axis] Repurchase of shares to satisfy 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Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Marketing services Marketing Services [Member] Marketing Services Total liabilities and stockholders’ equity Liabilities and Equity Other earnout shares Derivative Liability, Noncurrent Stock options Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] No Trading Symbol Flag No Trading Symbol Flag Earnout shares Derivative Liability, Measurement Input Beginning balance Ending balance Reverse Recapitalization, Shareholder Note Receivable, Amount Reverse Recapitalization, Shareholder Note Receivable, Amount Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Other, net Other Nonoperating Income (Expense) Sale of finished goods - resale Inventory, Sales Of Finished Goods, Resale, Net Of Reserves Inventory, Sales Of Finished Goods, Resale, Net Of Reserves Name Awards Close in Time to MNPI Disclosures, Individual Name Stockholders’ equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] PIPE share price (in dollars per share) Sale of Stock, Price Per Share Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Conversion of Legacy Blaize convertible notes, Net exercise of Legacy Blaize warrants and lapse of redemption Stock Issued During Period, Value, Conversion of Convertible Securities Fair Value Measurements and Derivative Instruments Derivatives and Fair Value [Text Block] Going Concern [Table] Going Concern [Table] Going Concern [Table] Non-cash inventory cost realignment adjustments Inventory Cost Adjustments, Non-Cash Inventory Cost Adjustments, Non-Cash Adjustment to Compensation: Adjustment to Compensation [Axis] Percent of receivables past due Financing Receivable, Percent Past Due Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Redemption of common stock subject to possible redemption (in shares) Temporary Equity, Redemption Of Common Stock, Shares Temporary Equity, Redemption Of Common Stock, Shares Inventory [Line Items] Inventory [Line Items] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets, measured at fair value Assets, Fair Value Disclosure Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Pay vs Performance 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operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Merger and PIPE financing (in shares) Temporary Equity, Stock Issued During Period, Shares, Reverse Recapitalization Temporary Equity, Stock Issued During Period, Shares, Reverse Recapitalization Depreciation Depreciation Depreciation, Nonproduction Provision for income taxes Income Tax Expense (Benefit) Purchased goods - resale Cost of Product and Service Sold Others Other Customers [Member] Other Customers Customer concentration risk Customer Concentration Risk [Member] Award Timing Method Award Timing Method [Text Block] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Share Repurchase Program [Abstract] Working Capital Loan Working capital loan Working Capital Loan [Member] Working Capital Loan Net loss Net loss Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Issuance of warrants for professional services Noncash Financing Activities, Issuance Of Warrants For Services Noncash Financing Activities, Issuance Of Warrants For Services Conversion of Legacy Blaize convertible notes Conversion Of Legacy Blaize Convertible Notes [Member] Conversion Of Legacy Blaize Convertible Notes Restatement Determination Date: Restatement Determination Date [Axis] Number of shares called by each right (in shares) Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Stockholder rights Stockholder Rights [Member] Stockholder Rights Proceeds from exercise of stock options Proceeds from Stock Options Exercised Warrant term Class Of Warrant Or Right, Term Class Of Warrant Or Right, Term Term Derivative, Contract Term Conversion of Legacy Blaize convertible notes to common stock Debt Conversion, Converted Instrument, Amount Cash payment to related party Cash Payment For Advance From Related Party Cash Payment For Advance From Related Party Fair value changes and financing charges Fair value changes and financing charges Fair Value Changes And Financing Charges Fair Value Changes And Financing Charges Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Net exercise of Legacy Blaize warrants Exercise Of Legacy Blaize Warrants [Member] Exercise Of Legacy Blaize Warrants Estimated recoveries Accounts Receivable, Allowance for Credit Loss, Recovery Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Numerator Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]