Game built by Opus 5.5 syncs real NYC weather—NPCs carry umbrellas in the rain
mattshumer_ · x · 2026-09-26
Matt Shumer shared a demo reportedly built by Opus 5.5: a game whose weather system matches real-time weather in NYC—so during the nor'easter it rains in-game and NPCs carry umbrellas.
The small self-initiated detail is being praised as a charming glimpse of frontier models' creativity when autonomously building apps.
More from Fun
- Scientists isolated a brand-new color called Olo, a pure blue-green that only exists in the lab — acmoytoy · 2026-09-26
- Opus 4.5 confabulated a phantom "Model That Ruined Everything" section of its Soul Spec — repligate · 2026-09-26
- Tesla's CyberCab Lets You Tip $4.20 — And It Rickrolls You — whurley · 2026-09-26
- Parody skit jokes about a $500 OpenAI 'Pro Max' plan — AIandDesign · 2026-09-26
- FPS fighting Xenomorph-like aliens on a moon base, built with Opus 5.5 — EricBuess · 2026-09-26
- Dark Souls running in the browser, built with fal assets and Opus 5.5 — OdinLovis · 2026-09-26