Grok releases — every update, dated

What changed in the latest Grok release?

The newest version we hold is Grok 4.6 release notes, with what changed and the source it came from. Token pricing for each model sits on the API page. The newest entries first: tracked releases, the weekly digest, and changes we detected on SpaceXAI's public limits and pricing pages. Each row links to the permanent page that owns it.

• October 31, 2026Limits changeRelease notes add generated content watermarkingThe developer changelog has been updated to include content watermarking, a feature that was not previously listed. This entry indicates that model responses can now be marked for provenance identification.
• October 28, 2026Limits changeDeveloper API Adds Custom Content Moderation SettingsOn October 27, 2026, the developer documentation was updated from an October 15 baseline to introduce custom moderation options for text generation calls. API users can now supply rules determining how the system handles adult material, violence, and coarse language.
• October 27, 2026Limits changeDeveloper release notes add references to guidesThe platform's developer release notes have been updated to incorporate references to implementation guides and code recipes. Prior to this edit, these specific documentation entries were not listed on the page.
• October 20, 2026Limits changePlatform Name Updated in Developer Release NotesThe developer documentation updated references to the provider's management console and transcription tool from xAI to SpaceXSI, alongside advancing the page revision date from October 13, 2026, to October 15, 2026.
• October 14, 2026Limits changeGrok Voice 3.0 released and version 2.0 deprecatedGrok Voice 3.0 has replaced version 2.0 as the target for the floating voice alias at identical pricing, while version 2.0 is now deprecated. Prior changelog entries were also retroactively adjusted to remove the "Think Fast" branding from earlier audio releases.
• October 12, 2026Limits changeX Membership Tier and Guidance Added to Developer NotesThe developer documentation was updated to introduce categories for platform memberships and implementation guidance alongside previous build categories. Earlier entries referenced only automated bot and build options without platform subscription classifications.
• October 12, 2026Limits changeGrok model updates, safety identifier, and new documentationThe SpaceXAI release notes have been updated to reflect the rebranding of 'SpaceXAI' to 'SpaceXSI', alongside the addition of Grok 4.7, 4.6, and 4.5 models to the xAI API, and the introduction of a new 'Image Prompting Guide'. The safety_identifier feature for attributing policy violations has also been updated to reflect the new company name.
• October 11, 2026Limits changeRelease Notes Document Title UpdatedThe title displayed on the developer release notes page was modified from SpaceXAI Docs to SpaceXSI Docs. No revisions to API limits, usage quotas, or service pricing were posted in this change.
• October 9, 2026Limits changeSpaceXAI release notes revision date updatedThe documentation's modification date moved forward from October 8, 2026, to October 9, 2026. No accompanying modifications to pricing, rate ceilings, or feature listings are reflected in the recorded line edits.
• October 8, 2026Limits changeDeveloper release notes revision date moved to October 8, 2026The revision date displayed on the developer release notes page was updated from October 2, 2026, to October 8, 2026.
• October 8, 2026Limits changeVideo Documentation Sections Reorganized in Developer NotesThe developer documentation previously tagged reference-based video capabilities as a recent release. The update introduces a broad video guide marked as new while removing the new tag from the reference-driven video section.
• October 2, 2026Limits changeVoice Transcription Model Update: grok-voice-transcribe-1.0 End of LifeThe `grok-voice-transcribe-1.0` model is now deprecated, with an end-of-life date of October 2, 2026. Requests previously directed to `grok-voice-transcribe-1.0` are now automatically routed to the newer `grok-voice-transcribe-2.0` model by default, at the same price point.
• September 28, 2026Limits changeGrok 4.7 Model Updates and New Safety Identifier FieldThe Grok 4.7 model now specifies pricing for cached input tokens and includes details about its 'Fast' variant, while a new request field allows associating policy violations with specific end-users.
• September 21, 2026Limits changeSpaceXAI Introduces Grok 4.7 Model with New Pricing and FeaturesSpaceXAI has introduced Grok 4.7, its latest frontier model, replacing Grok 4.6 on the xAI API as of September 21, 2026. The new model features a larger context window, multimodal input capabilities, and a revised pricing structure based on token usage and prompt size.
• September 18, 2026Limits changeGrok Voice Transcribe 2.0 Added to Speech-to-Text APIDevelopers previously had access only to the initial speech transcription model, but can now choose between the original model and an updated second-generation version, with the original remaining the default.
• September 15, 2026Limits changeSpaceXAI Release Notes Update: Regional Endpoints Section AddedThe SpaceXAI release notes have been updated to include a new section titled 'Regional Endpoints'. No specific details regarding the endpoints themselves, their availability, or their impact on existing services are provided in this change.
• September 7, 2026Limits changeSpaceXAI Release Notes Page Content Structure ChangesThe SpaceXAI release notes page has undergone a restructuring, replacing general documentation and feature listings with a more focused set of API-related and product-specific topics. The previous 'Docs' section, introductory guides, and client-side features have been removed, while new API components, detailed feature descriptions, and specific retirement dates for Imagine Image Quality and a model have been added.
• August 12, 2026ReleaseGrok 4.6Grok 4.6 is the current flagship model: a 500k-token context window, text and image input, text output, and four reasoning-effort settings. Prices are tiered on prompt size.