Grok 4.7 Fast is the same model at 2x token rates, only in Cursor and Grok Build
Daniel_Farinax · x · 2026-09-22
Daniel Farina reports that the new Grok 4.7 Fast is the same model served on faster infrastructure but billed at twice the standard token rates.
- Available only inside Cursor and Grok Build, and excluded from Grok Build's free tier.
- Not accessible via the public xAI API.
- Takeaway: it's a billing/serving tier packaging rather than a genuinely new model.
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