Claude Opus 4.8 vs GPT-5.4 Mini
Head to head on 26 shared benchmarks, with price, context window, and release dates.
Benchmark scores
46evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.8 Anthropic | 15.5% | 66.7% | 1835elo | 80.8 | 53.9% | 47.2% | 92.0% | 48.7% | 62.2% | 80.1% | 79.3% | 78.3% | 67.4% | 81.4% | 84.3% | 89.7% | 69.9% | 69.0% | 54.8% | 53.5% | 75.6% | 58.3% | 60.9% | 70.9% | 82.7% | 94.4% | 80.4% | 14.5% | 67.0% | - | - | 1281elo | 40.0% | 13.4% | 22.5% | 1890elo | 56.9% | - | 10.4% | 91.8% | 53.2% | 85.8% | 83.4% | 69.2% | 82.7% | - | 63.4% |
| GPT-5.4 Mini OpenAI | 37.0% | 60.9% | 1662elo | 73 | 45.4% | 28.3% | 60.6% | 5.9% | 38.8% | 70.9% | 71.6% | 70.9% | 60.3% | 71.5% | 78.6% | 72.5% | 63.5% | 21.0% | 50.8% | 39.6% | 71.2% | 18.2% | 39.6% | 54.2% | 48.0% | 23.4% | - | - | - | 21.2% | 3.9% | - | - | - | - | - | - | 80.3% | - | - | - | - | - | - | - | 61.7 | 48.4% |
2 / 2 models
| Attribute | Claude Opus 4.8 Anthropic | GPT-5.4 Mini OpenAI |
|---|---|---|
| Description | Claude Opus 4.8 (Adaptive Reasoning, Max Effort) is an AI model from Anthropic. | GPT-5.4 mini is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | - | closed |
| License | - | proprietary |
| Released | 28 May 2026 | 17 Mar 2026 |
| Context | 1,000,000 | 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 | text, image, file | file, image, text |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores |
FAQ
- Is Claude Opus 4.8 or GPT-5.4 Mini better?
- Across the 26 benchmarks both models report on Sophon, Claude Opus 4.8 leads on 25 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.8 and GPT-5.4 Mini compare on GPQA Diamond?
- Claude Opus 4.8 scores 92.0% and GPT-5.4 Mini scores 60.6% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.8 or GPT-5.4 Mini?
- GPT-5.4 Mini is cheaper at $4.50 per million output tokens against $25.00 for Claude Opus 4.8 - about 5.6x.
- When were Claude Opus 4.8 and GPT-5.4 Mini released?
- Claude Opus 4.8 was released 28 May 2026 by Anthropic. GPT-5.4 Mini was released 17 Mar 2026 by OpenAI.
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