Claude Opus 4.5 vs GPT-4o-mini
Head to head on 15 shared benchmarks, with price, context window, and release dates.
Benchmark scores
62evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.5 Anthropic | 91.3% | 61.3% | 1687elo | 86.6% | 30.1% | 58.0% | 78.1% | 79.7% | 62.5% | 81.3% | 87.1% | 89.5% | 68.7% | 49.5% | 74.3% | - | - | - | - | 16.7% | - | - | 35.6% | 6.1% | - | 73.1 | 20.7% | 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% | 79.2% | - | 61.8 | 47.0% | - | 20.6% | - | - | - | - | 89.5% | 64.8% |
| GPT-4o-mini OpenAI | 14.7% | 45.5% | 873elo | 42.6% | 4.2% | 31.0% | 47.2% | 43.0% | 65.8% | 32.9% | 23.4% | 64.8% | 54.5% | 22.9% | 60.5% | 16.7% | 3.6% | 11.7% | 50.7% | - | 0.29 | 0.0% | - | - | 0.0% | - | - | - | - | 0.0% | 1.54 | 0.0% | - | - | 72.0% | - | - | - | 78.9% | - | 62.8% | - | 78.0% | - | - | - | - | - | 3.81 | - | - | - | 100.0% | - | - | 0.36 | - | 0.78 | 83.3% | 54.5% | 22.5% | - | 39.6% |
2 / 2 models
| Attribute | Claude Opus 4.5 Anthropic | GPT-4o-mini OpenAI |
|---|---|---|
| Description | Claude Opus 4.5 is an AI model from Anthropic. | GPT-4o Mini is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 24 Nov 2025 | 18 Jul 2024 |
| Context | 200,000 | 128,000 |
| Input $/1M | $5.00 | $0.15 |
| Output $/1M | $25.00 | $0.60 |
| Cache read $/1M | $0.500 | $0.075 |
| 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 |
FAQ
- Is Claude Opus 4.5 or GPT-4o-mini better?
- Across the 15 benchmarks both models report on Sophon, Claude Opus 4.5 leads on 14 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-mini compare on GPQA Diamond?
- Claude Opus 4.5 scores 86.6% and GPT-4o-mini scores 42.6% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.5 or GPT-4o-mini?
- GPT-4o-mini is cheaper at $0.60 per million output tokens against $25.00 for Claude Opus 4.5 - about 41.7x.
- When were Claude Opus 4.5 and GPT-4o-mini released?
- Claude Opus 4.5 was released 24 Nov 2025 by Anthropic. GPT-4o-mini was released 18 Jul 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 evalsGPT-4.1 Mini vs GPT-4o-mini22 shared evalsClaude Opus 4.5 vs Qwen3.6 Plus22 shared evalsClaude Opus 4.5 vs gpt-oss-120b21 shared evalsGPT-4o vs GPT-4o-mini21 shared evalsGemini 2.5 Pro vs GPT-4o-mini19 shared evalsGPT-4o-mini vs GPT-5 Mini18 shared evalsClaude Opus 4.5 vs GPT-4o18 shared evalsClaude 4 Sonnet vs GPT-4o-mini18 shared evalsClaude Sonnet 4.5 vs GPT-4o-mini17 shared evalsGPT-4.1 Nano vs GPT-4o-mini17 shared evalsClaude Opus 4.5 vs GPT-4.1 Mini16 shared evalsGPT-4o-mini vs GPT-516 shared evalsGPT-4o-mini vs GPT-5 Nano16 shared evalsClaude Opus 4.5 vs GPT-4.116 shared evalsGPT-4.1 vs GPT-4o-mini16 shared evalsGPT-4o-mini vs GPT-5.215 shared evalsClaude Opus 4.5 vs GPT-4.1 Nano15 shared evalsDeepSeek V3.2 vs GPT-4o-mini15 shared evalsGPT-4o-mini vs Grok 4.1 Fast15 shared evalsGPT-4o-mini vs gpt-oss-120b15 shared evalsGLM 4.7 vs GPT-4o-mini14 shared evalsGPT-4o-mini vs GPT-5.513 shared evalsGemini 3.1 Pro Preview vs GPT-4o-mini12 shared evalsClaude Opus 4.8 vs GPT-4o-mini12 shared evalsClaude Fable 5 vs GPT-4o-mini12 shared evalsClaude Opus 4.6 vs GPT-4o-mini12 shared evalsGPT-4o-mini vs GPT-5.412 shared evalsGPT-4o-mini vs Kimi K2.512 shared evalsClaude Sonnet 4.6 vs GPT-4o-mini12 shared evalsGLM 5.1 vs GPT-4o-mini12 shared evalsClaude Opus 4.7 vs GPT-4o-mini12 shared evalsGPT-4o-mini vs GPT-5.4 Mini12 shared evalsClaude Opus 4.5 vs GPT-6 Astra11 shared evalsGPT-4o-mini vs Qwen3.6 Plus11 shared evalsGPT-4o-mini vs GPT-6 Astra4 shared evals
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