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Grok Code Fast 1

Retired

Retired as a standalone slug on 2026-05-15 12:00 PM PT; redirects to grok-build-0.1. Note grok-code-fast-1 also persists as an ALIAS of grok-build-0.1 on the current model page, so the name still resolves. 256k context window inferred from grok-build-0.1 (same model lineage).

Lifecycle warning

This model has been retired. Scheduled shutdown: 15 May 2026. Recommended migration: grok-build-0.1.

Provider
xAI
Status
Retired
Input price
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Output price
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Cached input
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Blended price
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Context window
256,000 tokens (256K)
Max output
—
Modality
text-in, image-in, text-out
Knowledge cutoff
—
Released
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API string
grok-code-fast-1

Source: xAI official documentation ↗

See also

Compare Grok Code Fast 1 with…

Grok Code Fast 1 vs Claude Opus 4.8→

— vs $10 blended /M

Grok Code Fast 1 vs Claude Opus 4.7→

— vs $10 blended /M

Grok Code Fast 1 vs Claude Opus 4.6→

— vs $10 blended /M

Grok Code Fast 1 vs Claude Opus 4.5→

— vs $10 blended /M