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

Nvidia's CEO congratulated OpenAI on Astra, saying the model was trained on over 100,000 Blackwell GPUs, the largest training run OpenAI has done so far.

The author had Astra make jelly watermelon, an octopus and a jellyfish, then built them into a browser slicing game that runs in real time on WebGPU rather than as AI video.

Nvidia's CEO said the model released on September 3 signals AGI is here, citing the Stargate GPU cluster in Texas and 400,000 chips about to come online, while others debate how AGI should be defined.

A Spanish-speaking user says they upgraded their ChatGPT subscription to Pro and that Astra seems to know things they themselves do not.

Someone used Astra to generate a dynamic 3D demo of bones, ligaments, tendons and motion axes, but the poster questions its medical accuracy and whether it actually helps.

Given only a handful of measurements and a bunch of photos, Astra built a 3D model of the author's house in Blender.

Jensen Huang says GPT-6 Astra was trained on roughly 100K+ Grace Blackwell NVLink72 GPUs, with another 400K GPUs coming online next.

Jensen Huang says Astra was trained on NVLink72 clusters and that AGI has arrived, with the poster speculating that labs not using Nvidia platforms may fall behind.

The author finds it notable that Jensen Huang, whose GPUs train Astra, says AGI has arrived, while acknowledging Nvidia's bullish incentive as a hardware seller.

The author claims that logging into ChatGPT inside Codex's built-in browser and writing a skill to split work between GPT-6 Pro and xhigh enables near-unlimited parallel research on a 20x account.

The author gave GPT-6 Astra and Fable 5.1 four photos of a 4x3090 rig plus Blender MCP access, had each rebuild it in 3D and make an animated website, with process and live links in the replies.

A roundup of seven early users who used Astra one-line prompts to build a Pokemon run, a Minecraft-style 3D space and a YouTube video, plus seven reusable prompts.