GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...
OpenAI: GPT-6 Astra — OpenAI. Context window 1,050,000 tokens. API pricing (per 1M tokens): Input $10, Output $50. License: Proprietary. LMArena 1,442. GPQA Diamond 95.8%.
| Provider | OpenAI |
|---|---|
| API model ID | openai/gpt-6-astra |
| Tier | Frontier |
| Context window | 1,050,000 tokens |
| Max output | 128,000 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $10 |
| API pricing (per 1M tokens) · Output | $50 |
| LMArena | 1,442 (gpt-6-astra-max) |
| GPQA Diamond | 95.8% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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