GPT-6 Astra builds explorable 3D city scenes in Unity, 1.9x faster than GPT-5.6 Sol
ChrisGPT · x · 2026-09-04
GPT-6 Astra can use Unity to assemble city scenes from existing assets, letting users create explorable immersive 3D environments. The updated Codex harness also speeds up computer use, yielding 1.9x faster task completion than GPT-5.6 Sol on Mind2Web. The author notes Unity is hard for models (C/ YAML-serialized scenes), making this a solid upgrade.
Related event: OpenAI Launches GPT-6 Astra, Declaring the AGI Era(388 posts)→
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