Skip to content
  • Tech Dev NotesTech Dev Notes
Apps
  • Lookup
  • Compare
Market movement
  • Charts
  • Rankings
Visual proof
  • Screens
  • Store listings
  • Icons
Stacks and releases
  • Tech stacks
  • Tool releases
  • Developers
More
  • X feature flags
  • Grokipedia
  • Grok companions
  • Blog
  • Follow on X
ChartsRankingsMoversCompareLookupScreensTech stacksReleases

© 2026 Tech Dev Notes

RSSAboutAPIStatusSecurityPrivacyTermsSitemap@techdevnotes
All releases

xAI · Docs

xAI Docs

xAI's documentation site.

Changelog

119 releases tracked

Sep 4, 05:17 UTCUpdated reasoning_effort / reasoning.effort parameter docs: support is model-dependent (unsupported models reject the request), values now include xhigh, and accepted values plus the default when unspecified vary by model—see each model’…Sep 3, 16:17 UTCAdded Grok Bot security for security reviewers: hosting, identity and sign-ins, network policy, static egress IPs, approvals and Auto Review, logging and audit, models and data, data retention and deletion, certifications, and related co…Sep 3, 03:17 UTCNew migration guide: /developers/migration/imagine-image-quality-nov-2Sep 3, 02:17 UTCClarified the input_tokens field description in usage details: it is the number of input tokens not served from cache (Anthropic semantics), alongside the existing cache_read_input_tokens field.Sep 2, 22:17 UTCConfigure identity and access — Guidance for Okta and Microsoft Entra ID: assigning the Cursor app more broadly, and allowing members to sign in to IdP apps from the Bot’s computer. Includes setup steps, limitations, and FAQ.Sep 2, 18:17 UTCDesktop app requirements and install steps now include Linux (x64 and Arm64).Aug 31, 21:17 UTCDocs now describe image editing with up to 5 reference images (previously 3).Aug 26, 00:17 UTCUpdated the Chat reference so the documented output and tools array union types include additional object variants in the relevant schema sections.Aug 25, 23:17 UTCAdded an FAQ covering SIP call control:Aug 25, 19:17 UTCUpdated the /developers/rest-api-reference/inference/chat reference: the documented union types for the output and tools array fields now include additional object variants in the relevant schema sections.Aug 21, 22:17 UTCUpdated /developers/rest-api-reference/inference/images: the aspect_ratio request body field now documents two additional values, "21:9" and "5:2", alongside the existing options (including "auto").Aug 21, 18:17 UTCUpdated eligible plans across Grok Bot docs. Access now includes SuperGrok Plus, SuperGrok Heavy, Cursor Pro+, Cursor Ultra, and Cursor Teams Standard and Premium (in addition to prior plan language).Aug 19, 18:17 UTCExpanded the image generation tool guide with full xAI SDK coverage alongside the existing Responses API examples:Aug 18, 04:17 UTCAdded a Prompting Guide for Grok Realtime speech-to-speech. It covers how to write the system prompt (instructions on session update), including recommended structure, role and persona, voice and communication style, conversation flow, t…Aug 14, 19:17 UTC/developers/rest-api-reference/inference/modelsAug 14, 08:17 UTCUpdated the /developers/rest-api-reference/inference/videos reference for reference_audios:Aug 13, 22:17 UTCOn /developers/models, image and video entries are updated to Grok Imagine Image 2.0 and Grok Imagine Video 1.5, with the image model link pointing to /developers/models/grok-imagine-image-2.0 (replacing the previous grok-imagine-image-q…Aug 13, 20:17 UTCUpdated rate limits on /developers/rate-limits: grok-imagine-image-quality now uses tiered request limits (T0: 6, T1: 12, T2: 25, T3: 50, T4: 100) instead of a single fixed value.Aug 13, 06:17 UTCUpdated the language field on transcript responses: documented as a BCP-47 code (e.g. en, es-mx) instead of an empty value with language detection not yet enabled. The same wording applies to per-channel language. Example response now sh…Aug 13, 00:17 UTCUpdated documented rate limits for Imagine models to tiered values (T0–T4):Aug 12, 20:17 UTCUpdated the voice models table so grok-voice-latest is documented as an alias for grok-voice-think-fast-2.0 (removed the prior alias and scheduled-switch note).Aug 12, 16:17 UTCAdded /developers/grok-4-6 for Grok 4.6 (model ID grok-4.6), covering at-a-glance details, API usage, and where it runs. The previous /developers/grok-4-5 page is removed.Aug 12, 04:17 UTCDocumentation for the Text to Speech API now covers pronunciation replacements via the replace request field:Aug 11, 22:17 UTCDocumented grok-imagine-image-2.0 for Grok Imagine image generation.Aug 11, 20:17 UTCGet started: Clarified eligible plan wording (SuperGrok Heavy, Cursor Ultra, Cursor Teams Premium) and how to sign in with your Cursor account; minor copy cleanup on setup requirements.Aug 11, 18:17 UTCNew documentation set for Grok Bot—durable AI teammates on a persistent cloud computer (messaging, approvals, connectors, and routines).Aug 11, 00:17 UTCDocumented the optional pricing array on image generation models: per-image prices by quality (low / medium / high) and resolution (1k / 2k), including price_per_image.Aug 10, 20:17 UTCImage & video inference referenceAug 8, 22:17 UTCWorkflows docs added on Modes and commands: create, launch, and manage background multi-subagent workflows.Aug 6, 20:17 UTCText-to-video: Docs now note that text-to-video runs as text-to-image then image-to-video under the hood (single request; intermediate image is not returned).Aug 6, 04:17 UTCClassification: reappear / rollback of previously archived 20260804-001704Z-136a106e5252.Aug 6, 02:17 UTCDocumentation across the REST API reference was restructured into a more compact endpoint format. No pages were added or removed.Aug 4, 00:17 UTCNew page: Image Generation Tool — Use the image_generation built-in tool so Grok can generate and edit images (Grok Imagine) inside a Responses API conversation, including basic usage, the action parameter, editing input images, multi-tu…Aug 3, 22:17 UTCClarified how Grok invokes the enterprise auth_provider_command under two contracts: background token refresh (GROK_AUTH_EXPIRED=1, short timeout, non-interactive) versus interactive sign-in (env unset, up to 300s, stderr shown to the us…Aug 1, 02:17 UTCDocumentation now centers on grok-imagine-video-1.5 (examples, API samples, and model links updated from grok-imagine-video).Aug 1, 00:17 UTCreference_audios now takes first-party preset voices via voice_id (same identifiers as the TTS API), resolved server-side from the model’s voice-preset catalog—not arbitrary audio URLs or base64 clips.Jul 30, 18:17 UTCExpanded the settings reference with a new UI and appearance environment-variable section and full docs for [ui], [ui.display_refresh], and [ui.contextual_hints] (themes, scroll, permissions UI, thinking blocks, voice, contextual hints,…Jul 30, 14:17 UTCClassification: reappear / rollback of previously archived 20260729-181704Z-e5090ef2c5ff.Jul 30, 12:17 UTCUpdated the Videos API reference to document reference_audios:Jul 29, 18:17 UTCgrok-voice-think-fast-2.0 is available as the recommended flagship Speech to Speech model. grok-voice-think-fast-1.0 is documented as the previous-generation model.Jul 28, 16:17 UTCExpanded the Security FAQ with two new sections: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