Claude 4.1 Opus Thinking vs Grok 4.1 Fast (Reasoning)

Change models
IndexAll categories, out of 100.
47.0 ±9.2
47.2 ±3.9 best
GapIndex points below the top.
−0.2 · no clear gap
Top
CoverageIndex weight that has results.
65%
100% best
SpeedOutput tokens per second.
29/s
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EloLMArena rating and rank.
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1408
ReleasedMonth of release.
2025-08
2025-11
Input / 1MUS dollars per 1M input tokens.
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Output / 1MUS dollars per 1M output tokens.
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1K chats2K tokens in, 500 out, each.
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1K documents20K tokens in, 1K out, each.
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1K agent tasks200K tokens in, 20K out, each.
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ContextMaximum tokens in one request.
200K
2M best
AgenticMulti-step tasks with tools.
50.1 best
48.3
CodingCode writing and repair.
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43.2
ReasoningLogic problems and puzzles.
48.1
50.2 best
MultimodalTasks with images and text.
43.5
43.6 best
KnowledgeFacts and expert knowledge.
47.8
48.0 best
MultilingualTasks in many languages.
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59.4
InstructionTasks with strict prompt rules.
40.8 best
38.3
MathMath problems.
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55.5

Benchmarks

8 shared
Only Grok 4.1 Fast (Reasoning): 33
Claude 4.1 Opus Thinking
Grok 4.1 Fast (Reasoning)
12.5%133 / 222
19.3% best114 / 222
76.0% best88 / 217
74.0%99 / 217
0.0%150 / 214
2.9% best98 / 214
80.9%97 / 199
85.3% best77 / 199
71.4%80 / 149
93.3% best32 / 149
55.4% best71 / 146
52.7%77 / 146
67.9% best80 / 113
63.3%85 / 113
88.0% best3 / 15
85.4%11 / 15