Model · Multimodal language model

Grok 4.3

An API-served image-and-text Grok release launched in April 2026 behind the rotating grok-4.3 and grok-4.3-latest aliases, with a 1,000,000-token context and no downloadable model weights.

Developer
xAI
Distribution
Developer API
Artifact licensing
Proprietary access
License scope
Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
Licenses
xAI Enterprise Terms of Service · xAI Acceptable Use Policy
Boundary
This record represents the Grok 4.3 release launched April 17, 2026 and served under the rotating API model names grok-4.3 and grok-4.3-latest. The 4.2 and 4.20 generations, consumer apps, Grok Build, gateway partners, and later Grok releases remain separate service or product boundaries.

Risk statements

Not yet examined.

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