Claude 4 Opus Thinking vs Grok 4.1 Fast (Reasoning)
Change modelsClaude 4 Opus ThinkingAnthropic
IndexAll categories, out of 100.
47.0 ±7.6
47.3 ±3.9 best
GapIndex points below the top.
−0.3 · no clear gap
Top
CoverageIndex weight that has results.
75%
100% best
SpeedOutput tokens per second.
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EloLMArena rating and rank.
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1408
ReleasedMonth of release.
2025-05
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.
51.5 best
48.4
CodingCode writing and repair.
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43.3
ReasoningLogic problems and puzzles.
54.8 best
50.3
MultimodalTasks with images and text.
44.9 best
43.6
KnowledgeFacts and expert knowledge.
47.1
48.1 best
MultilingualTasks in many languages.
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59.5
InstructionTasks with strict prompt rules.
39.2 best
38.3
MathMath problems.
43.9
55.7 best
Benchmarks
6 sharedOnly Claude 4 Opus Thinking: 5Only Grok 4.1 Fast (Reasoning): 35
Claude 4 Opus Thinking
Grok 4.1 Fast (Reasoning)