openai/gpt-6-astraGPT-6 Astra is OpenAI’s proprietary AI model, released Sep 3, 2026. It scores 169 on the Epoch Capabilities Index, costs $10/M input and $50/M output tokens, and handles a 1.1M-token context window. Its strongest use case is reasoning & knowledge, where it ranks in the 98th percentile of the models Model Beat tracks.
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.
Scores on standardized evaluations. Higher is better — and rank shows where GPT-6 Astra lands among all models tracked on Model Beat.
Abstract visual reasoning
Harder abstract reasoning
Graduate-level scientific reasoning
Frontier of human expert knowledge
Factual accuracy & hallucination
Novel ML problem-solving
Code performance optimization
Scientific research coding
Human-rated web development
Olympiad-qualifier math
Multi-step agentic tasks
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work.
GPT-6 Astra is an AI model developed by OpenAI, part of the GPT family, released Sep 3, 2026.
GPT-6 Astra's list price from OpenAI is $10 per million input tokens and $50 per million output tokens.
GPT-6 Astra supports a context window of up to 1.1M tokens.
On standardized evaluations tracked by Epoch AI, GPT-6 Astra scores 95.0% on ARC-AGI-2, 93.6% on WeirdML, 95.8% on GPQA Diamond.
GPT-6 Astra is a proprietary model (API access), available through its provider's API rather than as a downloadable open-weight model.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Oct 29, 2026.