Claude Opus 4.5 vs GPT-4o
Head to head on 18 shared benchmarks, with price, context window, and release dates.
Benchmark scores
56evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.5 Anthropic | 91.3% | 61.3% | 20.7% | 86.6% | 30.1% | 58.0% | 78.1% | 79.7% | 62.5% | 81.3% | 87.1% | 89.5% | 68.7% | 49.5% | 79.2% | 74.3% | 47.0% | 89.5% | - | - | - | - | 16.7% | - | 35.6% | 6.1% | - | 1687elo | 73.1 | 84.7% | - | 12.13 | 83.8% | 83.5% | - | 74.4% | 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% | - | 64.8% |
| GPT-4o OpenAI | 6.0% | 45.9% | 0.3% | 54.3% | 2.4% | 34.3% | 55.1% | 46.1% | 70.1% | 49.0% | 30.9% | 74.8% | 57.4% | 33.3% | 21.6% | 74.5% | 8.3% | 25.1% | 18.2% | 15.0% | 38 | 0.0% | - | 0.33 | - | - | 6.1% | - | - | - | 96.1 | - | - | - | 0.0% | - | - | - | 75.9% | - | 10.8% | - | - | - | 54.0% | - | - | - | 5.71 | - | - | 61.2 | - | 0.98 | - | 32.5% | 33.4% |
2 / 2 models
| Attribute | Claude Opus 4.5 Anthropic | GPT-4o OpenAI |
|---|---|---|
| Description | Claude Opus 4.5 is an AI model from Anthropic. | GPT-4o is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 24 Nov 2025 | 20 Nov 2024 |
| Context | 200,000 | 128,000 |
| Input $/1M | $5.00 | $2.50 |
| Output $/1M | $25.00 | $10.00 |
| Cache read $/1M | $0.500 | $1.250 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | file, image, text | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores | Taubench61.2 pass^1 GSM8K96.1 Accuracy ScholarSearch5.71 Social Sciences & Humanities (%) MortgageTax57.4% AIME202438 pass@1 |
FAQ
- Is Claude Opus 4.5 or GPT-4o better?
- Across the 18 benchmarks both models report on Sophon, Claude Opus 4.5 leads on 16 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-4o compare on GPQA Diamond?
- Claude Opus 4.5 scores 86.6% and GPT-4o scores 54.3% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.5 or GPT-4o?
- GPT-4o is cheaper at $10.00 per million output tokens against $25.00 for Claude Opus 4.5 - about 2.5x.
- When were Claude Opus 4.5 and GPT-4o released?
- Claude Opus 4.5 was released 24 Nov 2025 by Anthropic. GPT-4o was released 20 Nov 2024 by OpenAI.
Other head-to-heads
56Claude Opus 4.5 vs GPT-5.235 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.534 shared evalsClaude Opus 4.5 vs GPT-5 Mini31 shared evalsClaude Opus 4.5 vs Grok 4.1 Fast29 shared evalsClaude Opus 4.5 vs Gemini 3.1 Pro Preview28 shared evalsClaude Opus 4.5 vs Claude Opus 4.628 shared evalsClaude Opus 4.5 vs GPT-5.428 shared evalsClaude Opus 4.5 vs DeepSeek V3.227 shared evalsClaude Opus 4.5 vs GPT-5 Nano26 shared evalsClaude 4 Sonnet vs Claude Opus 4.526 shared evalsClaude Opus 4.5 vs Kimi K2.526 shared evalsClaude Opus 4.5 vs GPT-5.525 shared evalsClaude Opus 4.5 vs GLM 4.725 shared evalsClaude Opus 4.5 vs GPT-5.4 Mini25 shared evalsClaude Opus 4.5 vs Claude Opus 4.824 shared evalsClaude Opus 4.5 vs Claude Opus 4.724 shared evalsClaude Opus 4.5 vs Gemini 2.5 Pro24 shared evalsClaude Opus 4.5 vs GPT-523 shared evalsClaude Fable 5 vs Claude Opus 4.523 shared evalsClaude Opus 4.5 vs Claude Sonnet 4.623 shared evalsClaude Opus 4.5 vs GLM 5.123 shared evalsClaude Opus 4.5 vs Qwen3.6 Plus22 shared evalsGemini 2.5 Pro vs GPT-4o22 shared evalsClaude Sonnet 4.5 vs GPT-4o21 shared evalsClaude Opus 4.5 vs gpt-oss-120b21 shared evalsGPT-4o vs GPT-4o-mini21 shared evalsGPT-4.1 Mini vs GPT-4o20 shared evalsGPT-4o vs GPT-5 Mini20 shared evalsClaude 4 Sonnet vs GPT-4o20 shared evalsGPT-4o vs GPT-519 shared evalsGPT-4.1 vs GPT-4o19 shared evalsGPT-4o vs GPT-5 Nano18 shared evalsGPT-4o vs GPT-5.218 shared evalsDeepSeek V3.2 vs GPT-4o18 shared evalsGPT-4o vs gpt-oss-120b17 shared evalsClaude Opus 4.5 vs GPT-4.1 Mini16 shared evalsClaude Opus 4.5 vs GPT-4.116 shared evalsGPT-4.1 Nano vs GPT-4o16 shared evalsGPT-4o vs Grok 4.1 Fast16 shared evalsGLM 4.7 vs GPT-4o16 shared evalsGPT-4o vs GPT-5.515 shared evalsClaude Opus 4.5 vs GPT-4o-mini15 shared evalsClaude Opus 4.5 vs GPT-4.1 Nano15 shared evalsClaude Opus 4.6 vs GPT-4o15 shared evalsGPT-4o vs Kimi K2.515 shared evalsGemini 3.1 Pro Preview vs GPT-4o14 shared evalsClaude Opus 4.8 vs GPT-4o14 shared evalsGPT-4o vs GPT-5.414 shared evalsClaude Sonnet 4.6 vs GPT-4o14 shared evalsGLM 5.1 vs GPT-4o14 shared evalsClaude Opus 4.7 vs GPT-4o14 shared evalsGPT-4o vs Qwen3.6 Plus14 shared evalsGPT-4o vs GPT-5.4 Mini14 shared evalsClaude Fable 5 vs GPT-4o13 shared evalsClaude Opus 4.5 vs GPT-6 Astra11 shared evalsGPT-4o vs GPT-6 Astra4 shared evals
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