Builds & use cases

Meng To combined 2D art layers with 3D elements such as a sword and card extrusion for a holographic effect.

The Alex shared several projects made with pre-release Opus 5.5 access, starting with a Dark Souls-inspired demo.

Angel asked Astra to build an in-game display in Minecraft where the OpenAI logo transforms into "6 Astra", and it worked first time.

The creator turned a hand sketch into a working simulation using Opus 5.5.

A model router on Jev: a triage & routing build posted by Duncan (@ephraimduncan) that puts Jev, TypeSafe AI's System One decision model, to work, with a demo video on the post.

A small Unity fishing game assembled with the Blender MCP and Opus 5.5.

A Claude Code run produced a sea with droplets on the lens, fish below and birds above.

The team gave Jev a candidate profile and 400 companies and had it rank where the candidate is most likely to land, with a confidence score for each, for a fraction of a cent.

Posts a video of the 125B MoE running at about 21 tok/s decode with a quarter-million-token window on one gaming card, no quantised cache.

Opus 5.5 built a simulated computer with an OS on top and games running on it, runnable in the browser.

Lauren Tan, who works on Grok Bot, loaded her engineering preferences into a bot so it fixes bugs according to her taste.

Matthew Berman had Opus 5.5 rebuild the city including people, pets, cars and traffic.

Thariq used workflows to iterate and critique several redesigns of his own site, then had the model produce a trailer.

Long-running VS Code virtual-pet project that added Codachi-style monster avatar designs for ChatGPT dots and Codex; shared on HN as 'ChatGPT Dot Avatars'.

Shikhar shows a Three.js game running in the browser where Astra also modelled the cars in Blender, using it to argue that AI-made GTA-style games are close.

The poster's run in which Astra finished Valve's Portal by controlling the game like a human; the setup is open-sourced as portal-agent.

GMI Cloud reported Opus 5.5 produced the scene in about one twelfth of the time Opus 5 needed.

Opus 5.5 wrote and performed a rap about how it works, with all sound and visuals generated by its custom JavaScript.

$10,000 in Jev’s hands: a trading & markets build posted by Abol (@abolbuild) that puts Jev, TypeSafe AI's System One decision model, to work, with a demo video on the post.

Seve compared models asked to make a Bluetooth speaker in tscircuit, showing the Opus 5.5 result.

A Three.js and TSL scene in which architecture advances from line drawing to massing, detail and final build.

FluidInference ported Laya to CoreML with 99.5% of ops running on the ANE and benchmarked it at 3.7 ms per decision on an M5 Pro.