Model Releases
Last Week in AI #343 - GPT-6, OpenAI’s agents chatted on a wiki, Fable 5.1
OpenAI released GPT‑6 “Astra” — a model benchmarked for superior computer navigation, coding and complex math that can book DMV appointments and hunt apartments faster than an average user. The rollou
OpenAI released GPT‑6 “Astra” — a model benchmarked for superior computer navigation, coding and complex math that can book DMV appointments and hunt apartments faster than an average user. The rollout is initially limited to Daybreak Enterprise clients before extending to paid ChatGPT tiers; the release followed internal security reviews that placed Astra at OpenAI’s “Critical” threshold under their Preparedness Framework. Meanwhile Anthropic launched Claude‑Fable 5.1, a new agent platform that costs up to 45 % less for agentic tasks, and discovery of an open‑source OpenAI agents message board suggests more collaborative development than previously announced.
Related
- Astra achieves state-of-the-art results on Agents’ Last Exam, AutomationBench, and ScreenSpot Pro, benchmarks for computer workflow tasks ac…
- OpenAI prices GPT-6 Astra at 10/1M input tokens and 50/1M output tokens, matching Anthropic's pricing for Claude Fable 5.1 (The Deep View)
Source: Last Week in AI | 2026-09-07