Claude Sonnet 4.6 vs GPT-5.2
Head to head on 24 shared benchmarks, with price, context window, and release dates.
Benchmark scores
54evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.6 Anthropic | 65.3% | 78.0% | 1805elo | 79.9 | 32.4% | 79.7% | 11.2% | 42.4% | 92.2% | 78.4% | 80.0% | 76.1% | 63.9% | 77.7% | 86.5% | 86.4% | 67.7% | 45.0% | 46.6% | 44.1% | 77.1% | 42.4% | 51.5% | 78.9% | 87.1% | - | - | 47.2% | 47.6% | - | - | - | 1.35 | - | - | 1207elo | 51.0% | - | - | - | - | - | - | - | - | 89.3 | - | 72.1% | - | - | - | 76.3 | 50.6% | 60.6% | 62.8% |
| GPT-5.2 OpenAI | 65.9% | 60.0% | 1699elo | 71.6 | 40.7% | 71.2% | 8.0% | 47.4% | 79.0% | 78.7% | 76.1% | 78.2% | 61.8% | 79.8% | 93.2% | 83.2% | 67.1% | 15.0% | 49.3% | 40.4% | 75.8% | 31.8% | 53.5% | 46.5% | - | 51.0% | 100 | - | - | 100.0% | 0.0% | 16.7% | - | 40.6% | 9.4% | - | - | 12.93 | 85.0% | 66.9% | 24.0% | 72.0% | 49.7% | 84.4% | 81.4% | - | 96.7 | - | 18.7% | 66.7% | 71.8% | - | - | - | 56.3% |
2 / 2 models
| Attribute | Claude Sonnet 4.6 Anthropic | GPT-5.2 OpenAI |
|---|---|---|
| Description | Claude Sonnet 4.6 is an AI model from Anthropic. | GPT-5.2 is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 17 Feb 2026 | 11 Dec 2025 |
| Context | 1,000,000 | 400,000 |
| Input $/1M | $3.00 | $1.75 |
| Output $/1M | $15.00 | $14.00 |
| Cache read $/1M | $0.300 | $0.175 |
| Cache write $/1M | $3.750 | - |
| Speed | 45 tok/s | 0 tok/s |
| Latency | 1.12 s | 0.00 s |
| Modalities | text, image, file | file, image, text |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores | GPQA Diamond79.7% (AA) Humanity's Last Exam (HLE)11.2% (AA) IFBench42.4% (AA) SciCode44.1% (AA) τ²-bench (Tau²-bench)78.9% (AA) |
FAQ
- Is Claude Sonnet 4.6 or GPT-5.2 better?
- Across the 24 benchmarks both models report on Sophon, Claude Sonnet 4.6 leads on 15 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Sonnet 4.6 and GPT-5.2 compare on GPQA Diamond?
- Claude Sonnet 4.6 scores 79.7% and GPT-5.2 scores 71.2% on GPQA Diamond.
- Which is cheaper, Claude Sonnet 4.6 or GPT-5.2?
- GPT-5.2 is cheaper at $14.00 per million output tokens against $15.00 for Claude Sonnet 4.6 - about 1.1x.
- When were Claude Sonnet 4.6 and GPT-5.2 released?
- Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic. GPT-5.2 was released 11 Dec 2025 by OpenAI.
Comparing something else? Build your own side-by-side.