Claude Opus 4.5 vs GPT-5.2
Head to head on 35 shared benchmarks, with price, context window, and release dates.
Benchmark scores
49evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.5 Anthropic | 91.3% | 16.7% | 61.3% | 35.6% | 6.1% | 1683elo | 73.1 | 20.7% | 86.6% | 12.13 | 30.1% | 83.8% | 58.0% | 83.5% | 78.1% | 79.7% | 74.4% | 62.5% | 81.3% | 90.4% | 80.1% | 87.1% | 45.2% | 83.2% | 89.5% | 68.7% | 36.0% | 45.0% | 49.5% | 70.7% | 79.2% | 74.3% | 47.0% | 20.6% | 89.5% | - | - | - | - | 84.7% | - | - | 100.0% | 37.4 | - | - | 77.5% | 45.3 | 61.8 | 64.8% |
| GPT-5.2 OpenAI | 99.0% | 16.7% | 65.9% | 40.6% | 9.4% | 1699elo | 71.6 | 40.7% | 90.3% | 12.93 | 37.7% | 85.0% | 75.4% | 79.0% | 78.7% | 76.1% | 78.2% | 61.8% | 79.8% | 93.2% | 83.2% | 88.9% | 49.7% | 84.4% | 87.4% | 67.1% | 15.0% | 49.3% | 52.1% | 66.7% | 71.8% | 75.8% | 47.0% | 53.5% | 84.8% | 100 | 100.0% | 0.0% | 59.0% | - | 24.0% | 72.0% | - | - | 96.7 | 18.7% | - | - | - | 62.0% |
2 / 2 models
| Attribute | Claude Opus 4.5 Anthropic | GPT-5.2 OpenAI |
|---|---|---|
| Description | Claude Opus 4.5 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 | 24 Nov 2025 | 11 Dec 2025 |
| Context | 200,000 | 400,000 |
| Input $/1M | $5.00 | $1.75 |
| Output $/1M | $25.00 | $14.00 |
| Cache read $/1M | $0.500 | $0.175 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | file, image, text | file, image, text |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores |
FAQ
- Is Claude Opus 4.5 or GPT-5.2 better?
- Across the 35 benchmarks both models report on Sophon, GPT-5.2 leads on 22 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.5 and GPT-5.2 compare on GPQA Diamond?
- Claude Opus 4.5 scores 86.6% and GPT-5.2 scores 90.3% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.5 or GPT-5.2?
- GPT-5.2 is cheaper at $14.00 per million output tokens against $25.00 for Claude Opus 4.5 - about 1.8x.
- When were Claude Opus 4.5 and GPT-5.2 released?
- Claude Opus 4.5 was released 24 Nov 2025 by Anthropic. GPT-5.2 was released 11 Dec 2025 by OpenAI.
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