Claude Opus 4.8 vs GPT-5 Nano
Head to head on 22 shared benchmarks, with price, context window, and release dates.
Benchmark scores
69evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Claude Opus 4.8 Anthropic | 1840elo | 80.8 | 47.2% | 92.0% | 48.7% | 62.2% | 80.1% | 79.3% | 78.3% | 67.4% | 81.4% | 84.3% | 89.7% | 53.2% | 85.8% | 69.9% | 69.0% | 54.8% | 53.5% | 75.6% | 58.3% | 94.4% | - | - | 15.5% | - | 80.4% | - | 14.5% | - | 66.7% | 62.0% | - | 1281elo | 40.0% | 53.9% | - | 13.4% | - | 22.5% | 1890elo | - | 56.9% | 10.4% | - | - | - | - | - | 91.8% | - | - | - | - | 83.4% | - | - | - | 69.2% | 82.7% | - | 55.1% | 70.9% | - | - | 82.7% | - | - | - | 63.1% |
| GPT-5 Nano OpenAI | 705elo | 28 | 8.3% | 67.6% | 9.5% | 67.6% | 52.8% | 62.4% | 43.4% | 55.7% | 46.8% | 68.4% | 40.3% | 30.4% | 72.9% | 53.6% | 12.0% | 30.4% | 36.6% | 67.4% | 12.1% | 36.5% | 0.0% | 83.7% | - | 0.25 | - | 0.21 | - | 6.7% | - | - | 10.0% | - | - | - | 78.2% | - | 1.18 | - | - | 100.0% | - | - | 78.9% | 1.38 | 1.38 | 100.0% | 100.0% | - | 26.7% | 78.0% | 100.0% | 0.0% | - | 0.0% | 1.72 | 34.8% | - | - | 29.7% | - | - | 20.41 | -6.67 | - | 82.0% | 82.0% | 40.0% | 48.9% |
2 / 2 models
| Attribute | Claude Opus 4.8 Anthropic | GPT-5 Nano OpenAI |
|---|---|---|
| Description | Claude Opus 4.8 (Adaptive Reasoning, Max Effort) is an AI model from Anthropic. | GPT-5 nano is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | - | closed |
| License | - | proprietary |
| Released | 28 May 2026 | 7 Aug 2025 |
| Context | 1,000,000 | 400,000 |
| Input $/1M | $5.00 | $0.05 |
| Output $/1M | $25.00 | $0.40 |
| Cache read $/1M | $0.500 | $0.005 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores |
FAQ
- Is Claude Opus 4.8 or GPT-5 Nano better?
- Across the 22 benchmarks both models report on Sophon, Claude Opus 4.8 leads on 21 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 Nano compare on GPQA Diamond?
- Claude Opus 4.8 scores 92.0% and GPT-5 Nano scores 67.6% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.8 or GPT-5 Nano?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $25.00 for Claude Opus 4.8 - about 62.5x.
- When were Claude Opus 4.8 and GPT-5 Nano released?
- Claude Opus 4.8 was released 28 May 2026 by Anthropic. GPT-5 Nano was released 7 Aug 2025 by OpenAI.
Other head-to-heads
56Claude Opus 4.8 vs GPT-5.541 shared evalsClaude Fable 5 vs Claude Opus 4.840 shared evalsGPT-5 Mini vs GPT-5 Nano38 shared evalsClaude Opus 4.8 vs Gemini 3.1 Pro Preview38 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 shared evalsClaude Opus 4.7 vs Claude Opus 4.830 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.629 shared evalsGPT-5 vs GPT-5 Nano28 shared evalsClaude Opus 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.8 vs GPT-5.428 shared evalsClaude Opus 4.8 vs Kimi K2.528 shared evalsClaude Opus 4.8 vs GLM 5.127 shared evalsGPT-4.1 Mini vs GPT-5 Nano26 shared evalsGPT-5 Nano vs GPT-5.226 shared evalsClaude Opus 4.5 vs GPT-5 Nano26 shared evalsClaude Opus 4.8 vs GPT-5.226 shared evalsClaude Opus 4.8 vs GPT-5.4 Mini26 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.525 shared evalsClaude 4 Sonnet vs GPT-5 Nano25 shared evalsClaude Opus 4.8 vs Qwen3.6 Plus25 shared evalsClaude Opus 4.8 vs GPT-5 Mini24 shared evalsGemini 2.5 Pro vs GPT-5 Nano24 shared evalsGPT-5 Nano vs Grok 4.1 Fast24 shared evalsClaude Opus 4.5 vs Claude Opus 4.824 shared evalsClaude Opus 4.8 vs Grok 4.1 Fast24 shared evalsGPT-5 Nano vs GPT-5.523 shared evalsClaude Opus 4.6 vs GPT-5 Nano23 shared evalsGLM 4.7 vs GPT-5 Nano23 shared evalsGemini 3.1 Pro Preview vs GPT-5 Nano22 shared evalsGPT-5 Nano vs GPT-5.422 shared evalsGPT-5 Nano vs Kimi K2.522 shared evalsClaude Opus 4.7 vs GPT-5 Nano22 shared evalsDeepSeek V3.2 vs GPT-5 Nano22 shared evalsGPT-4.1 Nano vs GPT-5 Nano22 shared evalsGPT-5 Nano vs gpt-oss-120b22 shared evalsClaude 4 Sonnet vs Claude Opus 4.822 shared evalsClaude Opus 4.8 vs DeepSeek V3.222 shared evalsClaude Fable 5 vs GPT-5 Nano21 shared evalsGLM 5.1 vs GPT-5 Nano21 shared evalsClaude Opus 4.8 vs GLM 4.721 shared evalsGPT-4.1 vs GPT-5 Nano20 shared evalsClaude Sonnet 4.6 vs GPT-5 Nano20 shared evalsGPT-5.4 Mini vs GPT-5 Nano20 shared evalsClaude Opus 4.8 vs Gemini 2.5 Pro20 shared evalsGPT-5 Nano vs Qwen3.6 Plus19 shared evalsClaude Opus 4.8 vs GPT-6 Astra19 shared evalsGPT-4o vs GPT-5 Nano18 shared evalsClaude Opus 4.8 vs gpt-oss-120b18 shared evalsClaude Opus 4.8 vs GPT-517 shared evalsGPT-4o-mini vs GPT-5 Nano16 shared evalsClaude Opus 4.8 vs GPT-4o14 shared evalsClaude Opus 4.8 vs GPT-4o-mini12 shared evalsClaude Opus 4.8 vs GPT-4.1 Nano12 shared evalsClaude Opus 4.8 vs GPT-4.1 Mini11 shared evalsClaude Opus 4.8 vs GPT-4.111 shared evalsGPT-5 Nano vs GPT-6 Astra10 shared evals
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