AI Model Release Tracker: Updated 5 September 2026

AI MODEL RELEASE TRACKER — LAST UPDATED 5 SEPTEMBER 2026 ● Most recent release: GPT-6 Astra (3 September, OpenAI) — no API pricing published at launch ● Only confirmed date this month: 14 September — Claude Code weekly limits settle 17% below current levels ● Targeted, not dated: OpenAI listing (no