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

The author used Codex, Liveblocks, Clerk MCP and GPT-6 Astra to build a shared document where multiple bots assign themselves tasks, ask for feedback and comment back and forth.

The author gave Claude Opus 5 and ChatGPT Astra the same prompt to create a kawaii background for a product photo and says the gap between the two outputs is obvious.

The author recorded a 16-minute video on building interactive 3D websites with GPT-6 Astra and Blender, covering references, textures, lighting, animation and having the AI keep refining the result, with a free template and prompts included.

The main agent and subagents communicate on their own, leaving the user unable to see the process or step in midway and only able to wait for the result, which the author describes as an unpleasant experience.

The author argues that the two labs lead open source not only in compute but also in algorithmic taste, citing Astra's looping mechanism and data-efficient pretraining as examples.

A video says Astra analyzed top lab metrics and gave a 70% probability that physical autonomy in 2035 will take a certain form.

A developer built a Ghibli-style game where you drive a train and meet passengers across floating towns, made with Crayon pro, GPT-6 Astra and Three.js, and playable online.

The developer updated the Ghibli-style train sim built with GPT-6 Astra, Crayon and Three.js, adding garage upgrades and improved gameplay and world design, playable online.

After 14 months of development, a Stanford LLM professor sold a GPT-6 Astra-powered research bot for $150,800 that scans a million papers at once to surface connections across unrelated fields, built to discover rather than summarize.

Someone used Astra to auto-dial 50 sales leads, handle objections, send confirmation texts and follow up missed calls, booking 9 meetings for $18.60 in one afternoon.

GPT-5.5 will be discontinued across ChatGPT, ChatGPT Work and Codex, with Codex users advised to move to GPT-5.6 Sol or GPT-6 Astra; the API is unaffected.

A single claim that GPT-6 Astra is the best AI, with no testing details or concrete use cases.