Claude Sonnet 4.5 vs DeepSeek V3.2
Head to head on 27 shared benchmarks, with price, context window, and release dates.
Benchmark scores
88evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DeepSeek V3.2 DeepSeek | 59.0% | 47.9% | 1511elo | 66.8 | 22.1% | 75.1% | 11.2% | 31.3% | 49.0% | 68.0% | 65.9% | 64.6% | 50.0% | 48.2% | 70.4% | 85.0% | 77.2% | 59.3% | 83.7% | 8.0% | 38.7% | 59.0% | 70.0% | 68.2% | 32.6% | 5.1% | 78.9% | - | 74.7% | - | 74.2% | - | - | - | - | - | - | 0.0% | - | - | 16.0% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 57.5% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 65 | - | - | - | 51.7% |
| Claude Sonnet 4.5 Anthropic | 37.0% | 60.8% | 1675elo | 71.4 | 15.2% | 72.7% | 7.2% | 87.5% | 42.7% | 83.8% | 70.7% | 80.4% | 57.0% | 53.4% | 76.5% | 79.3% | 77.6% | 59.0% | 86.0% | 19.0% | 42.8% | 67.0% | 74.8% | 73.3% | 28.8% | 22.6% | 70.5% | 0.0% | - | 0.0% | - | 100 | 0.0% | 0.0% | 0.0% | 5.0% | 0.0% | - | 0.0% | 0.0% | - | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 83.9% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.75 | 0.75 | 0.0% | - | 0 | 40.6% | 84.5% | 0 | 64.0% | 0.0% | 0.0% | 62.9% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 32.9% | 0.0% | 0 | 0.0% | 0.0% | 77.2% | 0.0% | 0 | 0 | 50.34 | - | 0 | 0.0% | 1.49 | 27.5% |
2 / 2 models
| Attribute | Claude Sonnet 4.5 Anthropic | DeepSeek V3.2 DeepSeek |
|---|---|---|
| Description | anthropic/claude-sonnet-4.5 is an AI model. | DeepSeek V3.2 is an AI model from DeepSeek, released with open weights. |
| Family | Claude | Deepseek |
| Params | Undisclosed (closed) | - |
| Open weights | closed | open |
| License | Proprietary | mit |
| Released | 29 Sep 2025 | 1 Dec 2025 |
| Context | 1,000,000 | 163,840 |
| Input $/1M | $3.00 | $0.28 |
| Output $/1M | $15.00 | $0.42 |
| Cache read $/1M | $0.300 | $0.130 |
| Cache write $/1M | $3.750 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text |
| Providers | anthropic, aws-bedrock, vertex-ai | - |
| Publisher | Anthropic | DeepSeek |
| Reported scores | TaxEval v273.3% LiveBench - Math79.3% (LiveBench) LiveBench - Coding80.4% (LiveBench) LiveBench - Language76.5% (LiveBench) LiveBench - Data Analysis57.0% (LiveBench) | Aider Polyglot Benchmark74.2% (Aider) MathArena57.47% GPQA Diamond75.1% (AA) Humanity's Last Exam (HLE)11.2% (AA) |
FAQ
- Is Claude Sonnet 4.5 or DeepSeek V3.2 better?
- Across the 27 benchmarks both models report on Sophon, Claude Sonnet 4.5 leads on 18 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Sonnet 4.5 and DeepSeek V3.2 compare on GPQA Diamond?
- Claude Sonnet 4.5 scores 72.7% and DeepSeek V3.2 scores 75.1% on GPQA Diamond.
- Which is cheaper, Claude Sonnet 4.5 or DeepSeek V3.2?
- DeepSeek V3.2 is cheaper at $0.42 per million output tokens against $15.00 for Claude Sonnet 4.5 - about 35.7x.
- When were Claude Sonnet 4.5 and DeepSeek V3.2 released?
- Claude Sonnet 4.5 was released 29 Sep 2025 by Anthropic. DeepSeek V3.2 was released 1 Dec 2025 by DeepSeek.
Comparing something else? Build your own side-by-side.