Claude Opus 4.6 vs GPT-6 Astra
Head to head on 13 shared benchmarks, with price, context window, and release dates.
Benchmark scores
62evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GPT-6 Astra OpenAI | 41.4% | 92.0% | 2164elo | 82.8 | 97.6% | 96.1% | 54.7% | 48.5% | 87.9% | 99.0% | 46.4% | 56.5% | 89.6% | 59.3% | - | 95.0% | 98.5% | 99.9% | - | 95.9% | 91.5% | - | - | 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% | - | 74.5% |
| Claude Opus 4.6 Anthropic | 56.1% | 69.0% | 1804elo | 77.7 | 40.7% | 89.6% | 39.9% | 48.2% | 86.7% | 50.0% | 51.6% | 51.9% | 57.6% | - | 99.79 | - | - | - | 1.5 | - | - | 2.08 | 67.0% | - | 1223elo | - | - | - | - | - | - | 53.1% | 84.9% | 88771 | 58 | - | 78.8% | 78.2% | 69.9% | 63.3% | 83.3% | 89.3% | 88.7% | 78.5% | 68.5% | 93 | - | - | - | - | - | 44.5 | - | 72.0% | 75.6% | 76.0% | - | 46.2% | - | 80.6 | - | 92.1% | 68.1% |
2 / 2 models
| Attribute | Claude Opus 4.6 Anthropic | GPT-6 Astra OpenAI |
|---|---|---|
| Description | Claude Opus 4.6 is an AI model from Anthropic. | 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 | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | - |
| Released | 5 Feb 2026 | 3 Sep 2026 |
| Context | 1,000,000 | 1,050,000 |
| Input $/1M | $5.00 | $10.00 |
| Output $/1M | $25.00 | $50.00 |
| Cache read $/1M | $0.500 | $1.000 |
| Cache write $/1M | $6.250 | $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 | Anthropic | OpenAI |
| Reported scores | GPQA Diamond89.6% (AA) Humanity's Last Exam (HLE)39.9% (AA) SciCode51.9% (AA) τ²-bench (Tau²-bench)92.1% (AA) Terminal-Bench (Hard)46.2% (AA) |
FAQ
- Is Claude Opus 4.6 or GPT-6 Astra better?
- Across the 13 benchmarks both models report on Sophon, GPT-6 Astra leads on 11 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.6 and GPT-6 Astra compare on GPQA Diamond?
- Claude Opus 4.6 scores 89.6% and GPT-6 Astra scores 96.1% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.6 or GPT-6 Astra?
- Claude Opus 4.6 is cheaper at $25.00 per million output tokens against $50.00 for GPT-6 Astra - about 2.0x.
- When were Claude Opus 4.6 and GPT-6 Astra released?
- Claude Opus 4.6 was released 5 Feb 2026 by Anthropic. GPT-6 Astra was released 3 Sep 2026 by OpenAI.
Other head-to-heads
56Claude Opus 4.6 vs GPT-5.433 shared evalsClaude Opus 4.6 vs Gemini 3.1 Pro Preview31 shared evalsClaude Opus 4.6 vs Kimi K2.531 shared evalsClaude Opus 4.6 vs GPT-5.230 shared evalsClaude Opus 4.6 vs Claude Opus 4.729 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.528 shared evalsClaude Opus 4.6 vs GPT-5 Mini28 shared evalsClaude Opus 4.6 vs GPT-5.528 shared evalsClaude Opus 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.5 vs Claude Opus 4.628 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsClaude Opus 4.6 vs GLM 5.127 shared evalsClaude Fable 5 vs Claude Opus 4.626 shared evalsClaude Opus 4.6 vs DeepSeek V3.226 shared evalsClaude Opus 4.6 vs Grok 4.1 Fast25 shared evalsClaude Opus 4.6 vs GPT-5.4 Mini25 shared evalsClaude Opus 4.6 vs Qwen3.6 Plus24 shared evalsClaude Opus 4.6 vs GPT-5 Nano23 shared evalsClaude 4 Sonnet vs Claude Opus 4.622 shared evalsClaude Opus 4.6 vs Gemini 2.5 Pro21 shared evalsClaude Opus 4.6 vs GLM 4.721 shared evalsClaude Opus 4.6 vs GPT-519 shared evalsGPT-5.5 vs GPT-6 Astra19 shared evalsClaude Opus 4.8 vs GPT-6 Astra19 shared evalsClaude Opus 4.6 vs gpt-oss-120b19 shared evalsClaude Fable 5 vs GPT-6 Astra18 shared evalsGemini 3.1 Pro Preview vs GPT-6 Astra16 shared evalsClaude Opus 4.6 vs GPT-4o15 shared evalsClaude Opus 4.7 vs GPT-6 Astra14 shared evalsGLM 5.1 vs GPT-6 Astra14 shared evalsClaude Opus 4.6 vs GPT-4.1 Mini13 shared evalsGPT-5.2 vs GPT-6 Astra13 shared evalsClaude Opus 4.6 vs GPT-4.113 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 evalsClaude Opus 4.6 vs GPT-4o-mini12 shared evalsClaude Opus 4.6 vs GPT-4.1 Nano12 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 evalsGPT-5 Nano vs GPT-6 Astra10 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
Comparing something else? Build your own side-by-side.