Grok 4 Fast
Released · 22 days after Grok Code Fast 1
Key info
Context window
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Max output
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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 — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Global rank#296 of 597 LLMs
TierEfficient
Intelligence Index16.6
Math Index41.3
Reasoning & knowledge
MMLU-Pro
73%
GPQA Diamond
61%
Humanity's Last Exam
5%
Long-context reasoning
22%
Coding
LiveCodeBench
40%
SciCode
33%
Agentic & tool use
Terminal-Bench Hard
12%
τ²-Bench Telecom
64%
Math & instruction following
AIME 2025
41%
IFBench
38%
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.
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