AnthropicClaude 3 Sonnet
Claude 3 Sonnet is an Anthropic proprietary model, released 29 Feb 2024. Its best configuration ranks #721 of 785 on the BenchLeader Index at 38.0 ±4.4, in the lower half. The ± is the point: 209 other configurations score within that range, so they and this one cannot be told apart on quality alone — price and speed are what separate them. It scores highest in human preference (43) and lowest in multimodal (27). Last measured 22 Oct 2026.
- Blended price
- –
- Output speed
- –
- First answer
- –
- Context
- 200k
- Full answer
- –
- Cost per run
- –
- Released
- 29 Feb 2024
- Overall index38
- Reasoning35
- Coding33
- Maths35
- Human preference43
- Multimodal27
- Composite36
Versions
Anthropic has shipped 10 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.
| Model | Released | Index | Rank |
|---|---|---|---|
| Claude Sonnet 5.5max | 28 Sept 2026 | 69.4 | #10 |
| Claude Sonnet 5high | 30 Jun 2026 | 60.1 | #116 |
| Claude Sonnet 4.6 | 17 Feb 2026 | 57.1 | #185 |
| Claude Sonnet 4.5high | 29 Sept 2025 | 58.1 | #161 |
| Claude Sonnet 4thinking | 22 May 2025 | 53.2 | #293 |
| Claude 3.7 Sonnetthinking | 24 Feb 2025 | 51.0 | #352 |
| Claude 3.5 Sonnet | 22 Oct 2024 | 46.3 | #490 |
| Claude 3 Sonnetthis page | 29 Feb 2024 | 38.0 | #721 |
| Claude 37 Sonnetthinking | – | – | – |
| Claude Sonnet 5.0max | – | – | – |
How its index has moved
8 Sept 2026 to 23 Oct 2026The index is recomputed from scratch every day, so a line moves when a new benchmark result lands, when a publisher revises a score, or when the models it is normalised against change. Early movement usually means the score is still settling.
Benchmark results
See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Reasoning
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| GPQA Diamond | 40.6%#247 | Epoch AI Benchmarking Hub | |
| Arena Hard Prompts | 1283#270 | Arena (LMArena) | |
| GPQA Diamond (AA)not in index | 40.0%#479 | Artificial Analysis | |
| Humanity's Last Exam (AA)not in index | 3.6%#582 | Artificial Analysis | |
| DTBenchnot in index | 53.6%#201 | Epoch AI Benchmarking Hub | |
| WinoGrandenot in index | 75.1%#34 | Epoch AI Benchmarking Hub |
Coding
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| WeirdML | 10.2%#150 | WeirdML | |
| Arena Coding | 1318#262 | Arena (LMArena) |
Maths
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| OTIS Mock AIME | 2.5%#255 | Epoch AI Benchmarking Hub | |
| MATH Level 5 | 18.2%#80 | Epoch AI Benchmarking Hub | |
| Arena Maths | 1254#266 | Arena (LMArena) |
Knowledge
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| MMLUnot in index | 75.9%#35 | Epoch AI Benchmarking Hub |
Instruction following
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Instruction Followingnot in index | 1268#267 | Arena (LMArena) |
Human preference
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Text | 1281#270 | Arena (LMArena) | |
| Arena Creative Writingnot in index | 1246#268 | Arena (LMArena) | |
| Arena Multi-turnnot in index | 1279#259 | Arena (LMArena) | |
| Arena Longer Queriesnot in index | 1288#266 | Arena (LMArena) |
Multimodal
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Vision | 984#146 | Arena (LMArena) | |
| MMMU (validation) | 53.1%#42 | MMMU |
Composite
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Epoch Capabilities Indexnot in index | 120.8#172 | Epoch AI Benchmarking Hub | |
| AA Intelligence Index v4.3.2 | 5.9#552 | Artificial Analysis |
More from Anthropic
See also
Questions people ask
- What are Claude 3 Sonnet's benchmark scores?
- As of 25 Oct 2026, Claude 3 Sonnet scores 38.0 ±4.4 on the BenchLeader Index, strongest in human preference (43) and weakest in multimodal (27). That rests on 11 independent benchmark results, and every score on this page links to its publisher.
- How does Claude 3 Sonnet rank?
- Claude 3 Sonnet is #721 of 785 ranked configurations on 25 Oct 2026. 209 other configurations score within its margin, so the exact position matters less than the band. The leader is Claude Opus 5.5 (max effort) at 72.6.
- When was Claude 3 Sonnet released?
- Anthropic released Claude 3 Sonnet on 29 Feb 2024.
Data as of 25 Oct 2026. Compare with another model.
Cite as: BenchLeader, “Claude 3 Sonnet: benchmarks, pricing, speed and rank”, data as of 25 Oct 2026, https://www.benchleader.com/models/claude-3-sonnet.