Grok limit changes
We compare SpaceXAI's public limits, pricing and plan pages once a day. Every difference is recorded here, with what the page said before and what it says now.
Archive start. We began watching these pages on August 16, 2026. Changes SpaceXAI made before that date are not in this archive, so an empty list means we have seen no change since we started — not that nothing ever changed.
Tracked page changes
- October 31, 2026Release 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, 2026Developer 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, 2026Developer 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, 2026Platform 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, 2026Grok 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, 2026X 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, 2026Grok 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, 2026Release 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, 2026SpaceXAI 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, 2026Developer 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, 2026Video 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, 2026Voice 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, 2026Grok 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, 2026SpaceXAI 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, 2026Grok 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, 2026SpaceXAI 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, 2026SpaceXAI 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.
Verified limit figures
- August 12, 2026API — API pricing tiersGrok 4.6 launched with two-tier pricing keyed on prompt size. This is the first entry in the quota history: changes made before this date are not in our archive.— → $2 / $0.50 cached / $6 under 200k; $4 / $1 / $12 above USD per 1M tokens