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GPT-6 Astra Demo Builds Three.js Game and Blender Trailer with Core Footprint Under 2 MB

September 6, 2026 at 02:15 EDT

AI Agents
Software Dev & Coding
Media Generation

A public demonstration of OpenAI's GPT-6 Astra shows the model building a Three.js game, recreating its scenes in Blender and producing a trailer, with the procedural code-and-scene footprint reported below 2 MB before image and music assets.

SEPTEMBER 2026 · GPT-6 ASTRA

A full visual pipeline in one AI build

Astra is shown moving from a Three.js game to Blender scenes and a trailer, with the procedural core reported below <2 MB before image and music assets.

Three figures frame the story

<2 MB

reported core footprint

1.9x

faster Mind2Web completion

50%

fewer manual fixes reported

Task completion speed

Relative result reported for Astra plus the Codex harness against GPT-5.6 Sol.

1.0x baseline

1.9x Astra + Codex

Takeaway: the reported gain is in completing multi-step computer work faster, not in reducing the game's asset footprint.

How the workflow connects

Three.js game

→

Procedural scenes

→

Blender recreation

→

Trailer

What impressed developers

Polished UI and frontend design

Procedural scene construction

Little steering reported

What still needs checking

Image and music files sit outside the core footprint

Human direction still shaped detail

The demonstration is not a controlled benchmark

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