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xAI · Docs

xAI Docs

xAI's documentation site.

Changelog

78 releases tracked

Jul 25, 10:17 UTCVoice models: Docs no longer list the legacy grok-voice-fast-1.0 model. The speech-to-speech model table and related guidance now cover grok-voice-latest (alias for the newest voice model) and grok-voice-think-fast-1.0 (flagship). The de…Jul 23, 18:17 UTCAdjustable VAD threshold: Speech to Text now documents a vad_threshold parameter (streaming query param and batch multipart field) to tune the voice-activity gate that skips non-speech audio. Lower values help with quieter or noisier spe…Jul 23, 04:17 UTCRenamed Voice Agent API docs to Speech to Speech API.Jul 22, 06:17 UTCNo customer-facing documentation changes.Jul 22, 02:17 UTCPermissions (/build/features/permissions) — Modes, allow/deny rules, and how permissions relate to the sandbox.Jul 21, 22:17 UTCEU availability: Docs now state Grok 4.5 is available in the API console for EU users. The previous “not available yet” note was removed from the Grok 4.5 overview.Jul 21, 16:17 UTCTodos (sessions)Jul 21, 14:17 UTCChat completions reference (/developers/rest-api-reference/inference/chat)Jul 18, 00:17 UTCUpdated the main page heading to Grok 4.5 (from grok-4.5).Jul 17, 16:17 UTCClassification: reappear / rollback of previously archived 20260717-041703Z-c2b580ec0229.Jul 17, 14:17 UTCClassification: reappear / rollback of previously archived 20260716-101704Z-322c29be1f3f.Jul 17, 08:17 UTCClassification: reappear / rollback of previously archived 20260717-041703Z-c2b580ec0229.Jul 17, 06:17 UTCClassification: reappear / rollback of previously archived 20260716-101704Z-322c29be1f3f.Jul 17, 04:17 UTCDocumented the reasoning_effort request field on the chat endpoint: an optional, non-standard alternative to the reasoning configuration (used only when reasoning is unset).Jul 16, 10:17 UTCNo pages were added or removed. Documentation updates across five developer pages:Jul 15, 16:17 UTCNo significant customer-facing documentation changes in this update. No pages were added or removed.Jul 15, 14:17 UTCDocs update (content returned to a previously seen state)Jul 15, 04:17 UTCModels (/developers/models) and Pricing (/developers/pricing) now publish static pricing tables in place of the previous “Model pricing is loaded dynamically” note.Jul 15, 02:17 UTCUpdated the Models and Pricing pages: static Text API, Imagine, and Voice pricing tables were removed.Jul 14, 22:17 UTCCombined Chat API Pricing and Code API Pricing into a single Text API Pricing section on the pricing and models pages.Jul 14, 10:17 UTCUpdate window: 20260714-081703Z → 20260714-101703ZJul 14, 08:17 UTCUpdate window: 20260713-201703Z → 20260714-081703ZJul 13, 20:17 UTCDocs update (content restored to a previously published state)Jul 13, 18:17 UTC*Documentation update reflecting a return to a previously published content state (rollback/reappear). No pages added or removed (143 total). Changes below are limited to what appears in the docs diff.*Jul 12, 08:17 UTCDocs update (content restored to a previously published state after a brief oscillation). No pages added or removed (143 total). Three developer pages updated with static pricing tables and Chat API reference refinements.Jul 12, 06:17 UTCPricing and Models pages no longer list static Chat, Code, Imagine, or Voice price tables.Jul 12, 00:17 UTCUpdated the models overview note to state the Grok 4.5 knowledge cutoff is February 1, 2026.Jul 11, 00:17 UTCChat completions / inference referenceJul 10, 18:17 UTCPricing and Models pages now include static pricing tables (replacing dynamic-loading placeholders) for:Jul 10, 16:17 UTCStatic pricing tables (Chat, Code, Imagine, and Voice) were removed from the Pricing and Models pages.Jul 10, 14:17 UTCModels and Pricing pages now include static pricing tables (replacing the previous dynamic-loading note) for:Jul 10, 12:17 UTCStatic pricing tables for Chat, Code, Imagine, and Voice APIs were removed from the Pricing and Models pages.Jul 10, 04:17 UTCxAI Docs Release NotesJul 10, 02:17 UTCDevelopersJul 9, 22:17 UTCDevelopersJul 9, 20:17 UTCxAI Docs Release NotesJul 9, 18:17 UTCDevelopersJul 9, 12:17 UTCSpeech-to-Text documentation updatesJul 8, 20:17 UTCDevelopersJul 8, 18:17 UTCxAI Docs release notes (July 2025)Jul 8, 14:17 UTCDevelopers – Voice Agent APIJul 8, 10:17 UTCDevelopers – REST API ReferenceJul 8, 00:17 UTCDevelopersJul 7, 22:17 UTCxAI Docs release notes (2026-07-07)Jul 7, 02:17 UTCDevelopersJul 7, 00:17 UTCDevelopersJul 6, 22:17 UTCDevelopers – Audio / Text-to-SpeechJul 6, 18:17 UTCDevelopersJul 6, 16:17 UTCxAI Docs Release NotesJul 6, 14:17 UTCDeveloper API DocumentationJul 6, 02:17 UTCxAI Docs Release Notes – July 6, 2025Jul 5, 22:17 UTCDevelopersJul 4, 20:17 UTCGrok Build DocumentationJul 2, 22:17 UTCDevelopers – REST API ReferenceJul 2, 08:17 UTCxAI Docs release notes – 2026-07-02Jul 1, 20:17 UTCDevelopers – Files & CollectionsJun 30, 00:17 UTCDevelopers – Voice AgentsJun 29, 22:17 UTCxAI Docs Release Notes – June 29, 2026Jun 29, 18:17 UTCCommunity IntegrationsJun 29, 08:17 UTCDevelopers – REST API ReferenceJun 28, 18:17 UTCxAI Docs Release NotesJun 28, 16:17 UTCGrok UsersJun 27, 00:17 UTCxAI Docs release notes (2026-06-27)Jun 24, 22:17 UTCDevelopersJun 24, 18:17 UTCxAI Docs release notes (2026-06-24)Jun 24, 14:17 UTCxAI Docs release notes (June 24, 2026)Jun 22, 22:17 UTCxAI Docs Release Notes – June 22, 2026Jun 22, 00:17 UTCxAI Docs Release Notes (June 22, 2026)Jun 19, 06:17 UTCDevelopers – Voice API & Voice AgentJun 18, 00:17 UTCDevelopers – Function CallingJun 17, 04:17 UTCDevelopers – API Documentation UpdatesJun 17, 02:17 UTCxAI Docs release notes – June 17, 2026Jun 16, 06:17 UTCDevelopers – REST API ReferenceJun 15, 22:17 UTCxAI Docs Release Notes – June 2026Jun 15, 10:17 UTCDevelopers – API PerformanceJun 15, 00:17 UTCxAI Docs release notes (20260615)Jun 11, 11:12 UTCxAI Docs Release Notes – June 2026Jun 11, 00:17 UTCDevelopers – REST API Reference