Model profile
Claude Sonnet 4.5
Evidence coverage
12 of 321 tracked benchmarks are published. 10 are verified and 2 provisional. 6 of 8 categories are measured.
- Published / tracked
- 12 / 321
- Verified
- 10
- Provisional
- 2
- Categories with evidence
- 6 / 8
Evidence by category
- Agentic5 benchmarksVerified
- Coding1 benchmarkVerified
- Reasoning1 benchmarkVerified
- Knowledge1 benchmarkVerified
- Math3 benchmarksMixed evidence
- Multilingual0 benchmarksNot measured
- Multimodal1 benchmarkReported
- Inst. Following0 benchmarksNot measured
Claude Sonnet 4.5 ranks #96 out of 200 models on the public leaderboard with an overall score of 53.61/100. It does not yet have enough sourced coverage for BenchLM's verified leaderboard. While not a frontier model, it offers specific advantages depending on the use case.
Claude Sonnet 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 Sonnet 4.5 sits inside the Claude Sonnet 4.5 family alongside Claude Sonnet 4.5 Thinking. This profile currently has 12 of 321 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 Coding (#57), while its weakest is Agentic (#66). This performance profile makes it particularly well-suited for software development and code generation tasks.
Peer position
Exact provisional scores and ranks for the closest listed peers. A score can appear before a model clears the evidence threshold for a rank, so equal scores can have different rank states.
Range 53.43–54.06
- MiMo-V2-FlashXiaomiCompare#9154.06MiMo-V2-Flash is #91 with a score of 54.06.
- DeepSeek V4 Flash (High)DeepSeekCompare#9253.95DeepSeek V4 Flash (High) is #92 with a score of 53.95.
- Qwen3.6-27BAlibabaCompare#9353.82Qwen3.6-27B is #93 with a score of 53.82.
- GPT-5.1OpenAICompare#9453.65GPT-5.1 is #94 with a score of 53.65.
- DeepSeek V3.1DeepSeekCompare#9553.64DeepSeek V3.1 is #95 with a score of 53.64.
- Claude Sonnet 4.5Current modelAnthropic#9653.61Claude Sonnet 4.5 is #96 with a score of 53.61.
- DeepSeek V3.1 (Reasoning)DeepSeekCompare#9753.43DeepSeek V3.1 (Reasoning) is #97 with a score of 53.43.
Category percentile
More
Relative position among models eligible for each sourced category. A higher percentile means a stronger position within that category's ranked cohort; 100 is highest.
- Coding54%Eligible cohort rank #57 of 122Category score 51.6
- Agentic45%Eligible cohort rank #66 of 119Category score 46.9
Category evidence
Scores and ranks appear only where this model has published benchmark evidence. Categories without displayable source records remain not measured.
| Category | Score | Rank | Percentile | Weight | Benchmarks | Evidence |
|---|---|---|---|---|---|---|
| AgenticRank #66 of 119Percentile 45thWeight 22%5 benchmarksVerified | 46.9 | #66 of 119 | 45th | 22% | 5 benchmarks | Verified |
| CodingRank #57 of 122Percentile 54thWeight 20%1 benchmarkVerified | 51.6 | #57 of 122 | 54th | 20% | 1 benchmark | Verified |
| ReasoningRank Not rankedWeight 17%1 benchmarkVerified | 29.4 | Not ranked | Not available | 17% | 1 benchmark | Verified |
| KnowledgeRank Not rankedWeight 12%1 benchmarkVerified | 72.1 | Not ranked | Not available | 12% | 1 benchmark | Verified |
| MathRank Not rankedWeight 5%3 benchmarksMixed sources | 35.1 | Not ranked | Not available | 5% | 3 benchmarks | Mixed sources |
| MultilingualWeight 7%0 benchmarksNot measured | Not measured | Not ranked | Not available | 7% | 0 benchmarks | Not measured |
| MultimodalRank Not rankedWeight 12%1 benchmarkReported | 91.8 | Not ranked | Not available | 12% | 1 benchmark | Reported |
| Inst. FollowingWeight 5%0 benchmarksNot measured | Not measured | Not ranked | Not available | 5% | 0 benchmarks | Not measured |
Chatbot Arena performance
Scroll horizontally to inspect confidence intervals and vote counts.
| View | Elo | Confidence interval | Votes |
|---|---|---|---|
| Text Overall | 1346 | Not available | Not available |
Benchmark Details
Rows below have a displayable published verification record. Each source link and provenance note remains in the page HTML while its category is closed. Source-unverified manual rows and generated rows stay hidden.
Agentic5 benchmarks
Gert Labs Composite Game Benchmark
Coding1 benchmark
Software Engineering Benchmark Verified
Reasoning1 benchmark
Abstraction and Reasoning Corpus for AGI v2
Knowledge1 benchmark
Graduate-Level Google-Proof Q&A
Math3 benchmarks
FrontierMath v2 Tiers 1-3
FrontierMath v2 Tier 4
American Invitational Mathematics Examination 2025
Multimodal1 benchmark
Design Arena Website Elo
Frequently Asked Questions
How does Claude Sonnet 4.5 perform overall in AI benchmarks?
Claude Sonnet 4.5 has 12 published benchmark scores on BenchLM, but it does not yet have enough non-generated coverage to receive a global overall rank.
Is Claude Sonnet 4.5 good for knowledge and understanding?
Claude Sonnet 4.5 has visible benchmark coverage in knowledge and understanding, but BenchLM does not currently assign it a global category rank there.
Is Claude Sonnet 4.5 good for coding and programming?
Claude Sonnet 4.5 ranks #57 out of 122 models in coding and programming benchmarks with an average score of 51.6. There are stronger options in this category.
Is Claude Sonnet 4.5 good for mathematics?
Claude Sonnet 4.5 has visible benchmark coverage in mathematics, but BenchLM does not currently assign it a global category rank there.
Is Claude Sonnet 4.5 good for reasoning and logic?
Claude Sonnet 4.5 has visible benchmark coverage in reasoning and logic, but BenchLM does not currently assign it a global category rank there.
Is Claude Sonnet 4.5 good for agentic tool use and computer tasks?
Claude Sonnet 4.5 ranks #66 out of 119 models in agentic tool use and computer tasks benchmarks with an average score of 46.9. There are stronger options in this category.
Is Claude Sonnet 4.5 good for multimodal and grounded tasks?
Claude Sonnet 4.5 has visible benchmark coverage in multimodal and grounded tasks, but BenchLM does not currently assign it a global category rank there.
Which sibling models are related to Claude Sonnet 4.5?
Claude Sonnet 4.5 belongs to the Claude Sonnet 4.5 family. Related variants on BenchLM include Claude Sonnet 4.5 Thinking.
Does Claude Sonnet 4.5 have full benchmark coverage on BenchLM?
Not yet. Claude Sonnet 4.5 currently has 12 published benchmark scores out of the 321 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 Sonnet 4.5?
Claude Sonnet 4.5 has a published context window of 200K, which determines how much text it can process in a single interaction.
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