Each time a new model launches, the things people made with that model are collected and kept. This time, the models are Claude Opus 5.5, Sonnet 5.5, and Haiku 5.5. Reaction counts are the values checked on the original posts at the time below.
As of 2026-11-08 09:04
When a new model launches, we email you cases like these.
We pick these every hour from visitor likes, saves and shares and from reactions to the original posts. Newer cases get a small boost.
A physicist wrote that Opus 5.5 did a quantum gravity calculation (a theory that tries to explain gravity with quantum mechanics) in 10 hours. The physicist had spent a year on about 500 pages of hand work for a doctoral thesis. Opus 5.5 also wrote the paper and a GitHub repository. The result is in the GitHub repository linked in the post.
#210A year of quantum gravity hand calculation, redone in 10 hours with a paperWith one sentence per game, Opus 5.5 in Claude Code made a game about a pelican riding a bicycle, a first-person shooter (FPS) that recreates CrossFire's transport ship map, and a QQ Speed-style racing game. The model did everything alone in one conversation, from research to writing code, testing and deploying to Cloudflare Pages, and no human changed a single line of code.
#58Three 3D web games from one sentence each, deployed untouchedA DOOM clone that runs in the browser, built together with an autoplay AI that beats the game on its own. The autoplay won 8 of 8 games with an average hit rate of 93.4%.
#52A DOOM clone with a self-playing AI that won 8 of 8 gamesOpus 5.5, Fable 5.1 and GPT-6 Astra were each asked to build a flight simulator, a Minecraft-style voxel game and a real-time strategy game in a single attempt, and the results were posted side by side. For Opus 5.5, each game took 46 to 48 minutes and cost $11 to $14.
#533 games in one try each, from a flight simulator to a strategy gameA web service for managing shipping risk was built from 2 prompts in 18 minutes 16 seconds. The files the model wrote were deployed as they were, without a single line changed.
#1162 prompts, 18 minutes 16 seconds: an untouched shipping service