Claude Opus 4.1 vs Claude Sonnet 4.5 Thinking
Change modelsClaude Opus 4.1Anthropic
Claude Sonnet 4.5 ThinkingAnthropic
IndexAll categories, out of 100.
47.5 ±5.0
53.8 ±6.9 best
GapIndex points below the top.
−6.3 · no clear gap
Top
CoverageIndex weight that has results.
90% best
80%
SpeedOutput tokens per second.
12/s
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EloLMArena rating and rank.
1419
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ReleasedMonth of release.
2025-08
2025-09
Input / 1MUS dollars per 1M input tokens.
$15.00
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Output / 1MUS dollars per 1M output tokens.
$75.00
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Batch output / 1MBatch price per 1M output tokens.
$37.50
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1K chats2K tokens in, 500 out, each.
$67.50
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1K documents20K tokens in, 1K out, each.
$375.00
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1K agent tasks200K tokens in, 20K out, each.
$4,500.00
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ContextMaximum tokens in one request.
200K
200K
AgenticMulti-step tasks with tools.
48.7
57.1 best
CodingCode writing and repair.
48.2
50.6 best
ReasoningLogic problems and puzzles.
55.5
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MultimodalTasks with images and text.
51.1
58.4 best
KnowledgeFacts and expert knowledge.
49.4
53.3 best
MultilingualTasks in many languages.
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60.4
InstructionTasks with strict prompt rules.
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MathMath problems.
42.0
54.0 best
Benchmarks
13 sharedOnly Claude Opus 4.1: 13Only Claude Sonnet 4.5 Thinking: 15
Claude Opus 4.1
Claude Sonnet 4.5 Thinking