Grok 4 Fast (Reasoning) vs Grok Code Fast 1
Change models
IndexAll categories, out of 100.
45.3 ±4.3 best
41.2 ±7.4
GapIndex points below the top.
Top
−4.1 · no clear gap
CoverageIndex weight that has results.
95% best
75%
SpeedOutput tokens per second.
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172/s
EloLMArena rating and rank.
1400
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ReleasedMonth of release.
2025-09
2025-08
Input / 1MUS dollars per 1M input tokens.
—
$0.20
Output / 1MUS dollars per 1M output tokens.
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$1.50
1K chats2K tokens in, 500 out, each.
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$1.15
1K documents20K tokens in, 1K out, each.
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$5.50
1K agent tasks200K tokens in, 20K out, each.
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$70.00
ContextMaximum tokens in one request.
2M best
256K
AgenticMulti-step tasks with tools.
42.9
42.9
CodingCode writing and repair.
44.9
45.5 best
ReasoningLogic problems and puzzles.
47.8 best
40.3
MultimodalTasks with images and text.
42.7
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KnowledgeFacts and expert knowledge.
46.6 best
38.9
MultilingualTasks in many languages.
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—
InstructionTasks with strict prompt rules.
36.2 best
27.7
MathMath problems.
55.4
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Benchmarks
10 sharedOnly Grok 4 Fast (Reasoning): 25Only Grok Code Fast 1: 1
Grok 4 Fast (Reasoning)
Grok Code Fast 1