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Checked Active: 2026-10-15
OpenAI
GPT-6 Astra
OpenAI's most capable model: complex reasoning, coding, computer use, research and document creation.
Evaluation Analysis: Per OpenAI: prompts over 272K input tokens cost 2x input and 1.5x output for the whole request; Batch and Flex are half price; Fast mode is 2x. Reasoning effort low to max. In ChatGPT it powers GPT-6 Pro (Pro, Business, Enterprise) and is included in Work and Codex on Plus. Also on Microsoft Azure and Amazon Bedrock.
Context Window1.05M tokens (922K max input, 128K max output)
Input Price / 1M$10.00
Output Price / 1M$50.00
Release Date2026-09-03
Specs and prices checked 2026-10-15 against the official page.