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

The author used ChatGPT-6 Astra and Claude to generate prompts, then combined Suno and ChatGPT Images 2.5 to make a Stone Ocean-themed track.

Given the same prompt, Opus 5.5 produced a softer, more translucent gummy pineapple than Astra, whose version looked firmer with weaker colors, and Astra's estimated API cost was higher at about $11.63.

A Japanese user combined GPT-6 Astra and Opus 5.5 to take a small rocket from concept design to a 3D flight simulation aimed at placing a roughly 200 kg satellite into a near-circular orbit at about 500 km.

The poster notes that many people called GPT-6 Astra AGI, yet no one has said the same of Opus 5.5, which they say is better and cheaper than Astra.

The poster says OpenAI is very confident about DevDay but that a minor Astra update will not be enough to respond to Opus 5.5, arguing OpenAI needs a new model such as Astra 6.1.

A demo video and prompt show web designs generated by GPT-6 Astra, which the author calls dangerously good.

An experimental VRChat world where throwing a small autumn item turns the scene autumn-colored, with the creator saying GPT-6 Astra handled everything from modeling to logic.

A Japanese user argues frontier models like Astra, Fable and Opus have narrow vision and over-produce, returning answers too long for human cognitive load, which pollutes their own context and shortens their lifespan.

An anonymous free model appeared on Vercel's AI Gateway, passing 28 of 31 Next.js benchmark tasks to tie GPT-6 Astra, and 30 of 31 when given the Next.js docs.

A Russian post says Astra can operate a Unitree G1 humanoid robot in a room it has never seen, remember where items are, tidy them across the room, and later bring them back on vague human requests.

Given the same prompt, Opus 5.5 produces better texture but costs an estimated $4.50 in API fees versus $2.05 for Astra, and the author argues for choosing models by use case.

A developer speculates that OpenAI will fix Astra's usage limits at DevDay or release a new model to counter Anthropic's Opus 5.5 push.