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

Given a room photo, Astra calls Blender MCP to build a 3D scene with movable parts like doors and drawers, then designs its own camera moves and renders a demo video.

The author claims OpenAI pays a benchmarking organization to present Astra as the best Minecraft-playing AI, while ignoring that Lumi beat it in hardcore mode.

Each of the three models ran automated backtests for a week: Fable 5.1 produced 1297 winning strategies, while Astra built 1018 and barely hit usage limits, making it the most cost-effective.

Per OpenAI's latest docs, GPT-6 Astra on the Plus tier is only available in Work and Codex, while Chat keeps standard models; Astra draws on Work/Codex usage and runs out faster than Sol.

A Japanese creator says the homepage they are building is almost entirely made with GPT-6 Astra, and marvels at how capable AI has become; the finished site is still to come.

The author argues that OpenAI is building out the full robotics stack, and Astra's perception, planning and long-horizon execution make it the first suitable high-level brain for it.

OpenRouter user-share data for last week shows Astra at 19% and Fable 5.1 at just 6%, despite the two models launching only two days apart, leading the author to ask what went wrong with Fable 5.1.

Unsatisfied with judging from a video, the blogger ran Astra through a PCB design workflow and was left wondering whether it was really designing a board or just acting like a hardware engineer.

The author asked GPT-6 Astra to devise a way to earn 1 million yen a month from scratch with a fortune-telling account, and the result shows that no matter how smart an AI is, it cannot find the right answer in areas with no public information online.

A demo connects Astra to a custom wearable that reads biomechanics live, mapping pain to specific muscles instead of giving a generic diagnosis.

The developer says Astra and Fable 5.1 produce hacky, dirty code that becomes unmaintainable as changes pile up, while Gemini 3.8 Flash and Muse Spark 1.3 yield more maintainable code.

An OpenAI employee shares an image of Astra generated by Imagegen, showing the new model's image generation ability.