GPT-6 Astra
by OpenAI · ID gpt-6-astra · Released 2026-09 · Proprietary
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ELO Score
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MMLU
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HumanEval
1.05M
Context Window
$10.00
Input Price
About GPT-6 Astra
OpenAI's new frontier model, released 3 September 2026 to partners and rolled out publicly the next day. Scores 96% on GPQA Diamond and 74.1% on DeepSWE v1.1, with the real gains on computer use, terminal work, cybersecurity and long multi-step tasks rather than the saturated reasoning benchmarks. It introduces recurrent depth, a reasoning method that hides part of the chain of thought, which is why the release drew safety scrutiny. 1.05M-token context, up to 128K tokens per answer, knowledge cutoff April 2026. Long-context requests are billed at $20 input and $75 output per million. Prices checked 5 September 2026.
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