Claude Opus 4.5 vs GPT-4.1
Head to head on 16 shared benchmarks, with price, context window, and release dates.
Benchmark scores
63evals · sort by any column, ⤢ to expand fullscreen
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| Claude Opus 4.5 Anthropic | 62.7% | 61.3% | 1683elo | 20.7% | 84.7% | 81.0% | 13.2% | 43.0% | 73.8% | 88.9% | 68.7% | 47.0% | 79.2% | 74.3% | 40.9% | 86.3% | - | - | - | - | - | - | 16.7% | - | - | 35.6% | 6.1% | - | 73.1 | 12.13 | 83.8% | 83.5% | 78.1% | 79.7% | 74.4% | 62.5% | 81.3% | 90.4% | 80.1% | - | - | - | - | - | - | 45.2% | - | 83.2% | - | 100.0% | 37.4 | 36.0% | 77.5% | 45.0% | - | 45.3 | 70.7% | - | - | 61.8 | 20.6% | - | - | 62.2% |
| GPT-4.1 OpenAI | 34.7% | 63.1% | 1417elo | 5.5% | 60.9% | 66.6% | 4.2% | 43.0% | 45.7% | 80.6% | 65.9% | 38.1% | 39.6% | 75.1% | 13.6% | 47.1% | 0.0% | 52.4% | 43.7% | 26.7% | 61.5% | 1.64 | - | 83.7% | 1.55 | - | - | 12.4% | - | - | - | - | - | - | - | - | - | - | - | 70.8% | 0.49 | 0.49 | 91.3% | 32.1% | 32.1% | - | 69.4% | - | 50.5% | - | - | - | - | - | 8.57 | - | - | 31.1% | 10.0% | - | - | 92.0% | 92.0% | 48.0% |
2 / 2 models
| Attribute | Claude Opus 4.5 Anthropic | GPT-4.1 OpenAI |
|---|---|---|
| Description | Claude Opus 4.5 is an AI model from Anthropic. | GPT-4.1 is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 24 Nov 2025 | 14 Apr 2025 |
| Context | 200,000 | 1,047,576 |
| Input $/1M | $5.00 | $2.00 |
| Output $/1M | $25.00 | $8.00 |
| Cache read $/1M | $0.500 | $0.500 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | file, image, text | image, text, file |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores | ScholarSearch8.57 Social Sciences & Humanities (%) GPQA Diamond66.6% (AA) Humanity's Last Exam (HLE)4.2% (AA) IFBench43.0% (AA) |
FAQ
- Is Claude Opus 4.5 or GPT-4.1 better?
- Across the 16 benchmarks both models report on Sophon, Claude Opus 4.5 leads on 13 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-4.1 compare on GPQA Diamond?
- Claude Opus 4.5 scores 81.0% and GPT-4.1 scores 66.6% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.5 or GPT-4.1?
- GPT-4.1 is cheaper at $8.00 per million output tokens against $25.00 for Claude Opus 4.5 - about 3.1x.
- When were Claude Opus 4.5 and GPT-4.1 released?
- Claude Opus 4.5 was released 24 Nov 2025 by Anthropic. GPT-4.1 was released 14 Apr 2025 by OpenAI.
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