Grok Code Fast 1 — Retired model
Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding. With reasoning traces visible in the response, developers can steer Grok Code for high-quality work flows.
Technical specifications
Independent benchmarks
Scores below come from Artificial Analysis, an independent third party. BazaarLink does not participate in the testing.
Intelligence 14
Coding
Math 43
MMLU 79
GPQA 73
This modelCategory leader
Overall intelligence
#260out of 638 models
Aggregated across academic benchmarks
Intelligence
14
Mid-tierThis model14
Category leader53
Median12
Math
43
—This model43
Category leader99
Median53
MMLU Pro
79%
—This model79%
Category leader90%
Median75%
GPQA
73%
—This model73%
Category leader94%
Median69%
LiveCodeBench
66%
—This model66%
Category leader42%
Median42%
HLE
8%
—This model8%
Category leader53%
Median7%
SciCode
36%
—This model36%
Category leader60%
Median34%
IFBench
41%
—This model41%
Category leader83%
Median44%
τ²-Bench Telecom
76%
—This model76%
Category leader99%
Median46%
AA-LCR
48%
—This model48%
Category leader76%
Median40%
Terminal-Bench Hard
17%
—This model17%
Category leader66%
Median14%
Top 5 — CodingCoding Index leaderboard
2Claude Fable 5.1 (Adaptive Reasoning, Xhigh Effort, Default Fallback)
?/claude-fable-5-1-xhigh81$10 / $503Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback)
?/claude-fable-5-1-high79$10 / $504GPT-5.6 Sol (xhigh)
openai/gpt-5-6-sol-xhigh78$4 / $20AASource: Artificial Analysis · Independent third-party evaluation; not influenced by BazaarLinkView full evaluation on AA →
Frequently Asked Questions
Can I still use the retired Grok Code Fast 1 model?
No. Grok Code Fast 1 has been retired and is retained here only as a historical reference. See the active alternatives linked on this page.
Relay integrity checks
No integrity-check data is available for this model yet.
BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.
View the full integrity report →Related models and links
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