Claude Haiku 4.5 vs Claude Opus 4.5 Thinking

Change models
IndexAll categories, out of 100.
43.2 ±4.2
56.3 ±4.2 best
GapIndex points below the top.
−13.1
Top
CoverageIndex weight that has results.
95%
95%
SpeedOutput tokens per second.
88/s
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EloLMArena rating and rank.
1397
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ReleasedMonth of release.
2025-10
2025-11
Input / 1MUS dollars per 1M input tokens.
$1.00
—
Output / 1MUS dollars per 1M output tokens.
$5.00
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Batch output / 1MBatch price per 1M output tokens.
$2.50
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1K chats2K tokens in, 500 out, each.
$4.50
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1K documents20K tokens in, 1K out, each.
$25.00
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1K agent tasks200K tokens in, 20K out, each.
$300.00
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ContextMaximum tokens in one request.
200K
200K
AgenticMulti-step tasks with tools.
48.9
59.7 best
CodingCode writing and repair.
49.9
54.4 best
ReasoningLogic problems and puzzles.
38.1
54.2 best
MultimodalTasks with images and text.
42.6
57.3 best
KnowledgeFacts and expert knowledge.
36.1
59.0 best
MultilingualTasks in many languages.
44.5
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InstructionTasks with strict prompt rules.
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43.2
MathMath problems.
40.5
57.2 best

Benchmarks

5 shared
Only Claude Haiku 4.5: 33Only Claude Opus 4.5 Thinking: 32
Claude Haiku 4.5
Claude Opus 4.5 Thinking
1.3%103 / 131
22.8% best59 / 131
CorpFin v2Finance
60.3%69 / 131
65.1% best32 / 131
14.3%112 / 126
73.9% best58 / 126
0.0%102 / 122
24.2% best51 / 122
26.6%101 / 116
81.6% best50 / 116