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 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 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 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.