Grok 4 Fast
Released · 22 days after Grok Code Fast 1
Key info
Context window
—
Max output
—
Input price
$0.20 /1M
Output price
$0.50 /1M
Prices are the median across providers tracked by Artificial Analysis, not Opper billing.
Benchmarks
Independent benchmark scores: the Intelligence Index and the individual evaluations behind it, grouped by skill.
Global rank#177 of 511 LLMs
TierEfficient
Intelligence Index (previous version)17.9
Coding
LiveCodeBench
83%
Agentic & knowledge work
Terminal-Bench Hard
19%
τ²-Bench Telecom
66%
Science & reasoning
Humanity's Last Exam
19%
GPQA Diamond
85%
Long-context reasoning
74%
Knowledge
MMMU-Pro
62%
MMLU-Pro
85%
Math & instruction following
AIME 2025
90%
IFBench
51%
See full leaderboard →Benchmarks via Artificial Analysis · View on AA
Available routes
No routes currently available — Grok 4 Fast isn't routed through the Opper gateway right now. It's tracked here for its release history.
Contact us about this model →