Claude Sonnet 4.5vsClaude Sonnet 3.7
Across 13 shared benchmarks, Claude Sonnet 4.5 leads overall: Claude Sonnet 4.5 wins 13, Claude Sonnet 3.7 wins 0, with 0 ties and an average score difference of +17.89.
Claude Sonnet 4.5
Anthropic · 2025-09-30 · Chat model
Claude Sonnet 3.7
Anthropic · 2025-02-25 · Chat model
Claude Sonnet 4.513 wins(100%)(0%)0 winsClaude Sonnet 3.7
Benchmark scores
Grouped by capability, sorted by largest gap within each. 13 shared benchmarks.
Agent Level Benchmark
Claude Sonnet 4.5 3/3| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| τ²-Bench - Telecom | 985 / 35 | 5531 / 35 | +43 |
| τ²-Bench | 84.709 / 40 | 61.8029 / 40 | +22.90 |
| Terminal Bench Hard | 338 / 13 | 2113 / 13 | +12 |
General Knowledge
Claude Sonnet 4.5 3/3| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| HLE | 33.6067 / 157 | 10.30131 / 157 | +23.30 |
| LiveBench | 78.264 / 52 | 68.6424 / 52 | +9.62 |
| GPQA Diamond | 83.4058 / 178 | 7788 / 178 | +6.40 |
Math and Reasoning
Claude Sonnet 4.5 3/3| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| AIME2025 | 1001 / 106 | 54.8084 / 106 | +45.20 |
| Simple Bench | 54.309 / 27 | 46.4014 / 27 | +7.90 |
| FrontierMath | 5.2038 / 60 | 4.1041 / 60 | +1.10 |
AI Agent - Tool Usage
Claude Sonnet 4.5 1/1| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| OSWorld-Verified | 61.4014 / 18 | 2818 / 18 | +33.40 |
Coding and Software Engineer
Claude Sonnet 4.5 1/1| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| SWE-bench Verified | 826 / 108 | 70.3055 / 108 | +11.70 |
Long Context
Claude Sonnet 4.5 1/1| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| AA-LCR | 668 / 13 | 6113 / 13 | +5 |
Productivity Knowledge
Claude Sonnet 4.5 1/1| Benchmark | Claude Sonnet 4.5 | Claude Sonnet 3.7 | Diff |
|---|---|---|---|
| GDPval-AA | 3916 / 21 | 2820 / 21 | +11 |
Specs
| Field | Claude Sonnet 4.5 | Claude Sonnet 3.7 |
|---|---|---|
| Publisher | Anthropic | Anthropic |
| Release date | 2025-09-30 | 2025-02-25 |
| Model type | Chat model | Chat model |
| Architecture | Dense | Dense |
| Parameters | Not available | Not available |
| Context length | 1000K | 128K |
| Max output | 64K | Not available |
Summary
- Claude Sonnet 4.5leads in:Agent Level Benchmark (3/3), General Knowledge (3/3), Math and Reasoning (3/3), AI Agent - Tool Usage (1/1), Coding and Software Engineer (1/1), Long Context (1/1), Productivity Knowledge (1/1)
On average across the 13 shared benchmarks, Claude Sonnet 4.5 scores 17.89 higher.
Largest single-benchmark gap: AIME2025 — Claude Sonnet 4.5 100 vs Claude Sonnet 3.7 54.80 (+45.20).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.