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xAI (Elon Musk) builds the Grok model family — frontier models with native real-time data access via the xAI API.
4
indexed models
5
total catalog
Free
cheapest model
0
free / open source
| Model | Input $/1M | Output $/1M | Context | |
|---|---|---|---|---|
grok-4 Grok 4 is xAI’s most advanced reasoning model. Excels at logical thinking and in-depth analysis. Ideal for insightful discussions and complex problem-solving. | — | — | — | |
grok-imagine-video Generate videos using xAI's Grok Imagine Video model | — | — | — | |
grok-imagine-r2v Generate videos guided by reference images using xAI's Grok Imagine Video model | — | — | — |
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grok-imagine-video-extension Extend videos with xAI's Grok Imagine Video model. Provide a source video and describe what happens next. | — | — | — |