GPT-6 Astra Mini

OpenAI's September 24, 2026 volume tier for the GPT-6 line — Astra Mini at $1.50/$6 per Mtok, roughly a seventh of the flagship's $10/$50 for what OpenAI's own docs describe as 80-85% of its eval profile. Same 1.05M context and the same five-effort reasoning selector as full Astra; the architecture is billed as a distill rather than a separate training run. The published table mirrors Astra's suite row-for-row at reduced figures — a cleaner family story than the GPT-5.6 tier split, and the first GPT-6 row cheap enough for high-volume agent loops.