LLM · OpenAI

GPT-6 Astra

OpenAI lists gpt-6-astra as its most capable model for demanding work. The model page states a 1,050,000 token context window, 922,000 maximum input tokens, and 128,000 maximum output tokens. Prompts with more than 272K input tokens are priced at 2x input and 1.5x output for the whole request. The stored rate is the standard short-context price.

Checked 19 Oct 2026https://developers.openai.com/api/docs/models/gpt-6-astra