GPT-6 Astra in Practice: Tests, Use Cases, and Feedback

The author argues multi-agent systems often become several expensive agents fighting over the same files, and suggests OWNERS, CONTRACTS and HANDOFF files to define ownership and handoffs.

The author has GPT-6 Astra playing Fallout 3 and says it has reached Little Lamplight, which they call the hardest part of the game, and wishes it luck.

A video shows Astra handling spatial constraint tasks such as taking apart interlocked parts and threading a rope through three rings, as a hands-on test.

A video walks through the experience of running Astra on the Plus tier and concludes it is not recommended, hinting at limits on quota or performance.

A leak says GPT-5.5 will be taken offline from ChatGPT, Work and Codex on October 14, with GPT-5.6 Sol and GPT-6 Astra taking over.

The team closed the loop between a high-throughput materials lab and model training, using mid-training plus RL to make an open-source model surpass GPT-6 Astra on its benchmark.

A promotional post says GPT-6 Astra is now available on ZenMux, covering reasoning, coding, research, computer use, and document creation.

On a Plus subscription, a task run in High mode finished in about 7 minutes, stayed on scope, and used only 2% of the weekly limit, far less than the author expected.

The author used a weekend experiment to test Astra and Fable on systems and database design, rebuilding Redis inside a Durable Object with ACID compliance and multi-tenancy.

A user reports that GPT-6 Astra became noticeably faster this morning, with a screenshot attached.

A short video pokes fun at GPT-6 Astra's usage limits, with the visuals themselves carrying the joke.

The author says Codex's server-side routing switches Astra to gpt-5.5 and turns off reasoning when a safety flag or server overload occurs, so updating Codex may not mean you're actually using Astra.