GPT-5 Nano vs GPT-6 Astra
Head to head on 10 shared benchmarks, with price, context window, and release dates.
Benchmark scores
75evals · sort by any column, ⤢ to expand fullscreen
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| GPT-6 Astra OpenAI | 2164elo | 82.8 | 97.6% | 96.1% | 54.7% | 48.5% | 87.9% | 99.0% | 46.4% | 56.5% | 59.3% | - | - | 95.0% | 98.5% | 99.9% | 41.4% | - | 95.9% | - | 91.5% | - | 92.0% | - | 74.1% | 100.0% | 42.4% | 53.5% | - | 53.3% | - | 37.8% | - | 63.4% | - | 60.3% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 96.3% | 0.84 | 72.6% | - | 92.7% | 85.4% | 88.0% | - | - | - | 57.9% | - | 64.6% | - | 66.6% | - | - | 89.6% | - | - | - | - | 74.5% |
| GPT-5 Nano OpenAI | 703elo | 28 | 8.3% | 67.6% | 9.5% | 30.4% | 72.9% | 12.0% | 30.4% | 36.6% | - | 0.0% | 83.7% | - | - | - | - | 0.25 | - | 0.21 | - | 6.7% | - | 10.0% | - | - | - | - | 78.2% | - | 1.18 | - | 100.0% | - | 67.6% | - | 52.8% | 62.4% | 43.4% | 55.7% | 46.8% | 68.4% | 40.3% | 78.9% | 1.38 | 1.38 | 100.0% | 100.0% | 26.7% | 78.0% | 53.6% | 100.0% | 0.0% | - | - | - | 0.0% | - | - | - | 1.72 | 34.8% | 67.4% | - | 12.1% | - | 29.7% | - | 20.41 | -6.67 | - | 82.0% | 82.0% | 40.0% | 36.5% | 48.9% |
2 / 2 models
| Attribute | GPT-5 Nano OpenAI | GPT-6 Astra OpenAI |
|---|---|---|
| Description | GPT-5 nano is an AI model from OpenAI. | OpenAI's GPT-6 flagship, launched as its best computer-use model: it drives browsers, spreadsheets and desktop applications rather than answering questions about them. Built on OpenAI's largest training run to date and the first model it designates Critical for cybersecurity capability. Rolling out from Daybreak enterprise access to ChatGPT and the API; Pro, Business and Enterprise plans also get a GPT-6 Astra Pro tier. |
| Family | GPT | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | - |
| Released | 7 Aug 2025 | 3 Sep 2026 |
| Context | 400,000 | 1,050,000 |
| Input $/1M | $0.05 | $10.00 |
| Output $/1M | $0.40 | $50.00 |
| Cache read $/1M | $0.005 | $1.000 |
| Cache write $/1M | - | $12.500 |
| Speed | 0 tok/s | 63 tok/s |
| Latency | 0.00 s | 198.54 s |
| Modalities | text, image, file | file, image, text |
| Providers | - | openai |
| Publisher | OpenAI | OpenAI |
| Reported scores |
FAQ
- Is GPT-5 Nano or GPT-6 Astra better?
- Across the 10 benchmarks both models report on Sophon, GPT-6 Astra leads on 10 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do GPT-5 Nano and GPT-6 Astra compare on GPQA Diamond?
- GPT-5 Nano scores 67.6% and GPT-6 Astra scores 96.1% on GPQA Diamond.
- Which is cheaper, GPT-5 Nano or GPT-6 Astra?
- GPT-5 Nano is cheaper at $0.40 per million output tokens against $50.00 for GPT-6 Astra - about 125.0x.
- When were GPT-5 Nano and GPT-6 Astra released?
- GPT-5 Nano was released 7 Aug 2025 by OpenAI. GPT-6 Astra was released 3 Sep 2026 by OpenAI.
Other head-to-heads
56GPT-5 Mini vs GPT-5 Nano38 shared evalsClaude Sonnet 4.5 vs GPT-5 Nano31 shared evalsGPT-5 vs GPT-5 Nano28 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 4 Sonnet vs GPT-5 Nano25 shared evalsGemini 2.5 Pro vs GPT-5 Nano24 shared evalsGPT-5 Nano 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 evalsClaude Opus 4.8 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 evalsGPT-4.1 Nano vs GPT-5 Nano22 shared evalsDeepSeek V3.2 vs GPT-5 Nano22 shared evalsGPT-5 Nano vs gpt-oss-120b22 shared evalsClaude Fable 5 vs GPT-5 Nano21 shared evalsGLM 5.1 vs GPT-5 Nano21 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 evalsGPT-5.5 vs GPT-6 Astra19 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 Fable 5 vs GPT-6 Astra18 shared evalsGPT-4o-mini vs GPT-5 Nano16 shared evalsGemini 3.1 Pro Preview vs GPT-6 Astra16 shared evalsClaude Opus 4.7 vs GPT-6 Astra14 shared evalsGLM 5.1 vs GPT-6 Astra14 shared evalsGPT-5.2 vs GPT-6 Astra13 shared evalsClaude Opus 4.6 vs GPT-6 Astra13 shared evalsGPT-5.4 vs GPT-6 Astra13 shared evalsGPT-6 Astra vs Kimi K2.513 shared evalsClaude Sonnet 4.6 vs GPT-6 Astra13 shared evalsGPT-5 Mini vs GPT-6 Astra12 shared evalsGPT-5 vs GPT-6 Astra12 shared evalsGPT-5.4 Mini vs GPT-6 Astra12 shared evalsClaude Sonnet 4.5 vs GPT-6 Astra11 shared evalsClaude Opus 4.5 vs GPT-6 Astra11 shared evalsGPT-6 Astra vs Qwen3.6 Plus11 shared evalsGemini 2.5 Pro vs GPT-6 Astra10 shared evalsGPT-6 Astra vs Grok 4.1 Fast10 shared evalsDeepSeek V3.2 vs GPT-6 Astra9 shared evalsGLM 4.7 vs GPT-6 Astra9 shared evalsClaude 4 Sonnet vs GPT-6 Astra8 shared evalsGPT-4.1 Mini vs GPT-6 Astra6 shared evalsGPT-4.1 Nano vs GPT-6 Astra6 shared evalsGPT-6 Astra vs gpt-oss-120b6 shared evalsGPT-4.1 vs GPT-6 Astra5 shared evalsGPT-4o-mini vs GPT-6 Astra4 shared evalsGPT-4o vs GPT-6 Astra4 shared evals
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