GPT-6 Astra

GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation. It is the first version of the gpt-astra line in the registry. It has a context window of 1,050,000 tokens and a max output of 128,000 tokens. Pricing starts at $8.00 per million input tokens and $40.00 per million output tokens, with cached input at $0.80 per million tokens. Weights are not open. It supports reasoning mode and tool calling, accepts image, pdf, and text, and returns text. Knowledge cutoff is 2026-04-30.

First version of its line in the registry.

Range across the hosts that serve it: up to $20.00 per 1M input tokens.

• ·Complex reasoning and coding tasks
• ·Computer use and research support
• ·Document creation with 128k output
• ·1.05M token context window
• ·Tool calling and reasoning mode

• Reach for it for complex reasoning and coding tasks
• Reach for it for computer use and research workflows
• Reach for it for long document creation with large context

24 hosts serve this model at the price above · the maker's documentation

• 8Will GPT-6 "Eat" 3D Companies? This Company's ARR Soared 100-Fold in Less Than 2 Years, Breaking $100 Million2026-10-04
• 8GPT-6.1 Sol (Max) Enters Agent Arena at Rank 5, Approaching Top Models at Lower Cost2026-10-03
• 8Argon aims to return Google to the frontier2026-10-02
• 7OpenAI blocks distillation theft, but researchers say same trick still works on Azure for GPT-6 Astra and other models2026-10-02
• 8Anthropic's mid-tier Claude climbs the rankings2026-09-30
• 8OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs less2026-09-30
• 8[AINews] Opus 5.5 is good at explainer videos2026-09-29
• 8Arena Review: GPT-6 Luna (Max) Ranks 23rd on Agent Arena with a Single Task Cost of Only $0.052026-09-29
• 8[AINews] The Future of Latent Space2026-09-26
• 9Gemini 3.8 TTS Playground2026-09-24

22 signals of the archive mention this model, each scored against the published bar, the 10 most recent shown. This list is rebuilt from the archive at every build, so it cannot go stale.

The registry keeps the six most recent versions of a line. Older ones stay in the file and can be surfaced without a rebuild.

What is the context window size?

1,050,000 tokens.

Does it support image input?

Yes, it accepts image, pdf, and text.

What is the pricing?

From $8.00 per million input tokens and $40.00 per million output tokens, cached input at $0.80.