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Claude Opus 4.5

AnthropicEstablishedReleased November 2025
Overall Score
77Prov. #23 of 115Verified #9 of 23
Arena Elo
1468
Categories Ranked
8of 8
Price (1M tokens)
$5 in / $25 out
Speed
46tok/s
Context
200K
ProprietaryNon-Reasoning
Confidence
base

According to BenchLM.ai, Claude Opus 4.5 ranks #23 out of 115 models on the provisional leaderboard with an overall score of 77/100. It also ranks #9 out of 23 on the verified leaderboard. This places it in the mid-tier of AI models, with strengths in specific benchmark categories.

Claude Opus 4.5 is a proprietary model with a 200K token context window. It processes queries without explicit chain-of-thought reasoning, offering faster response times and lower token usage.

Claude Opus 4.5 sits inside the Claude Opus 4.5 family alongside Claude Opus 4.5 Thinking. This profile currently has 41 of 193 tracked benchmarks. BenchLM only exposes non-generated benchmark rows publicly, so missing categories stay blank until a sourced evaluation is available.

Its strongest category is Mathematics (#6), while its weakest is Instruction Following (#56). This performance profile makes it particularly strong for mathematical reasoning, scientific computing, and quantitative analysis.

Ranking Distribution

Category rank across 8 benchmark categories — sorted by best rank

Category Performance

Scores across all benchmark categories (0-100 scale)

Category Breakdown

Agentic

#17
76.6/ 100
Weight: 22%13 benchmarks
Terminal-Bench 2.0BrowseCompOSWorld-VerifiedGAIATAU-benchWebArena

Coding

#26
77.6/ 100
Weight: 20%5 benchmarks
SWE-bench VerifiedLiveCodeBenchSWE-bench ProSWE-RebenchSciCode

Reasoning

#24
69.8/ 100
Weight: 17%2 benchmarks
MuSRLongBench v2MRCRv2ARC-AGI-2

Knowledge

#11
83.6/ 100
Weight: 12%6 benchmarks
GPQASuperGPQAMMLU-ProHLEFrontierScienceSimpleQA

Math

#6
94.9/ 100
Weight: 5%5 benchmarks
AIME 2025BRUMO 2025MATH-500FrontierMath

Multilingual

#18
84.0/ 100
Weight: 7%2 benchmarks
MGSMMMLU-ProX

Multimodal

#55
55.7/ 100
Weight: 12%6 benchmarks
MMMU-ProOfficeQA ProCharXivCharXiv w/o tools

Inst. Following

#56
63.8/ 100
Weight: 5%2 benchmarks
IFEvalIFBench

Chatbot Arena Performance

Text Overall1468

Benchmark Details

Only benchmark rows with an attached exact-source record are shown here. Source-unverified manual rows and generated rows are hidden from model pages.

Claude Opus 4.5 Family

Base entry

Claude Opus 4.5 Thinking

Compare This Model

See how Claude Opus 4.5 stacks up against similar models

Claude Opus 4.5 ThinkingAnthropic
—
Claude Mythos PreviewAnthropic
Prov. 99
Claude Opus 4.7 (Adaptive)Anthropic
Prov. 90
Claude Opus 4.6Anthropic
Prov. 87
Gemini 3.1 ProGoogle
Prov. 92

Frequently Asked Questions

How does Claude Opus 4.5 perform overall in AI benchmarks?

Claude Opus 4.5 currently ranks #23 out of 115 models on BenchLM's provisional leaderboard with an overall score of 77. It also ranks #9 out of 23 on the verified leaderboard. It is created by Anthropic and features a 200K context window.

Is Claude Opus 4.5 good for knowledge and understanding?

Claude Opus 4.5 ranks #11 out of 115 models in knowledge and understanding benchmarks with an average score of 83.6. There are stronger options in this category.

Is Claude Opus 4.5 good for coding and programming?

Claude Opus 4.5 ranks #26 out of 115 models in coding and programming benchmarks with an average score of 77.6. There are stronger options in this category.

Is Claude Opus 4.5 good for mathematics?

Claude Opus 4.5 ranks #6 out of 115 models in mathematics benchmarks with an average score of 94.9. It is among the top performers in this category.

Is Claude Opus 4.5 good for reasoning and logic?

Claude Opus 4.5 ranks #24 out of 115 models in reasoning and logic benchmarks with an average score of 69.8. There are stronger options in this category.

Is Claude Opus 4.5 good for agentic tool use and computer tasks?

Claude Opus 4.5 ranks #17 out of 115 models in agentic tool use and computer tasks benchmarks with an average score of 76.6. There are stronger options in this category.

Is Claude Opus 4.5 good for multimodal and grounded tasks?

Claude Opus 4.5 ranks #55 out of 115 models in multimodal and grounded tasks benchmarks with an average score of 55.7. There are stronger options in this category.

Is Claude Opus 4.5 good for instruction following?

Claude Opus 4.5 ranks #56 out of 115 models in instruction following benchmarks with an average score of 63.8. There are stronger options in this category.

Is Claude Opus 4.5 good for multilingual tasks?

Claude Opus 4.5 ranks #18 out of 115 models in multilingual tasks benchmarks with an average score of 84. There are stronger options in this category.

Which sibling models are related to Claude Opus 4.5?

Claude Opus 4.5 belongs to the Claude Opus 4.5 family. Related variants on BenchLM include Claude Opus 4.5 Thinking.

Does Claude Opus 4.5 have full benchmark coverage on BenchLM?

Not yet. Claude Opus 4.5 currently has 41 published benchmark scores out of the 193 benchmarks BenchLM tracks. BenchLM only exposes non-generated public benchmark rows, so missing categories stay blank until a sourced evaluation is available.

What is the context window size of Claude Opus 4.5?

Claude Opus 4.5 has a context window of 200K, which determines how much text it can process in a single interaction.

Related Resources

More from Anthropic LLM Pricing Comparison BenchLM Methodology The AI Race Which LLM Should I Use? Benchmark Explainers
Last updated: May 13, 2026 · Runtime metrics stay blank until BenchLM has a sourced snapshot.

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