Claude Opus 4.5 vs GPT-5.4 Mini
Head to head on 25 shared benchmarks, with price, context window, and release dates.
Benchmark scores
46evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.5 Anthropic | 61.3% | 35.6% | 6.1% | 1687elo | 73.1 | 20.7% | 86.6% | 30.1% | 58.0% | 83.5% | 78.1% | 79.7% | 74.4% | 62.5% | 81.3% | 90.4% | 80.1% | 68.7% | 36.0% | 45.0% | 49.5% | 74.3% | 47.0% | 20.6% | 89.5% | 91.3% | - | 16.7% | - | 84.7% | 12.13 | 83.8% | 87.1% | 45.2% | 83.2% | 89.5% | 100.0% | 37.4 | 77.5% | 45.3 | 70.7% | 79.2% | 61.8 | - | - | - | 64.8% |
| GPT-5.4 Mini OpenAI | 60.9% | 21.2% | 3.9% | 1665elo | 73 | 28.3% | 87.5% | 28.1% | 73.3% | 80.3% | 70.9% | 71.6% | 70.9% | 60.3% | 71.5% | 78.6% | 72.5% | 63.5% | 21.0% | 50.8% | 52.1% | 71.2% | 52.3% | 48.0% | 83.3% | - | 37.0% | - | 45.4% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 61.7 | 33.2% | 54.2% | 55.2% |
2 / 2 models
| Attribute | Claude Opus 4.5 Anthropic | GPT-5.4 Mini OpenAI |
|---|---|---|
| Description | Claude Opus 4.5 is an AI model from Anthropic. | GPT-5.4 mini is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 24 Nov 2025 | 17 Mar 2026 |
| Context | 200,000 | 400,000 |
| Input $/1M | $5.00 | $0.75 |
| Output $/1M | $25.00 | $4.50 |
| 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 | file, image, text |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores |
FAQ
- Is Claude Opus 4.5 or GPT-5.4 Mini better?
- Across the 25 benchmarks both models report on Sophon, Claude Opus 4.5 leads on 18 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-5.4 Mini compare on GPQA Diamond?
- Claude Opus 4.5 scores 86.6% and GPT-5.4 Mini scores 87.5% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.5 or GPT-5.4 Mini?
- GPT-5.4 Mini is cheaper at $4.50 per million output tokens against $25.00 for Claude Opus 4.5 - about 5.6x.
- When were Claude Opus 4.5 and GPT-5.4 Mini released?
- Claude Opus 4.5 was released 24 Nov 2025 by Anthropic. GPT-5.4 Mini was released 17 Mar 2026 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 evalsGemini 3.1 Pro Preview vs GPT-5.4 Mini30 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 Sonnet 4.6 vs GPT-5.4 Mini28 shared evalsClaude Opus 4.5 vs DeepSeek V3.227 shared evalsGPT-5.4 Mini vs GPT-5.427 shared evalsGPT-5.4 Mini vs GPT-5.526 shared evalsClaude Opus 4.5 vs GPT-5 Nano26 shared evalsClaude Opus 4.8 vs GPT-5.4 Mini26 shared evalsClaude 4 Sonnet vs Claude Opus 4.526 shared evalsClaude Opus 4.5 vs Kimi K2.526 shared evalsClaude Opus 4.7 vs GPT-5.4 Mini26 shared evalsClaude Opus 4.5 vs GPT-5.525 shared evalsGPT-5.4 Mini vs GPT-5.225 shared evalsClaude Opus 4.5 vs GLM 4.725 shared evalsClaude Fable 5 vs GPT-5.4 Mini25 shared evalsClaude Opus 4.6 vs GPT-5.4 Mini25 shared evalsGPT-5.4 Mini vs Kimi K2.525 shared evalsGPT-5.4 Mini vs GPT-5 Mini24 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 evalsGLM 5.1 vs GPT-5.4 Mini24 shared evalsGPT-5.4 Mini vs Qwen3.6 Plus24 shared evalsClaude Sonnet 4.5 vs GPT-5.4 Mini23 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 evalsDeepSeek V3.2 vs GPT-5.4 Mini22 shared evalsGPT-5.4 Mini vs Grok 4.1 Fast22 shared evalsClaude Opus 4.5 vs gpt-oss-120b21 shared evalsGPT-5.4 Mini vs GPT-5 Nano20 shared evalsClaude 4 Sonnet vs GPT-5.4 Mini19 shared evalsGLM 4.7 vs GPT-5.4 Mini19 shared evalsClaude Opus 4.5 vs GPT-4o18 shared evalsGemini 2.5 Pro vs GPT-5.4 Mini18 shared evalsGPT-5.4 Mini vs gpt-oss-120b17 shared evalsClaude Opus 4.5 vs GPT-4.1 Mini16 shared evalsGPT-5 vs GPT-5.4 Mini16 shared evalsClaude Opus 4.5 vs GPT-4.116 shared evalsClaude Opus 4.5 vs GPT-4o-mini15 shared evalsClaude Opus 4.5 vs GPT-4.1 Nano15 shared evalsGPT-4o vs GPT-5.4 Mini14 shared evalsGPT-4o-mini vs GPT-5.4 Mini12 shared evalsGPT-5.4 Mini vs GPT-6 Astra12 shared evalsGPT-4.1 Nano vs GPT-5.4 Mini12 shared evalsGPT-4.1 Mini vs GPT-5.4 Mini11 shared evalsClaude Opus 4.5 vs GPT-6 Astra11 shared evalsGPT-4.1 vs GPT-5.4 Mini11 shared evals
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