# Simon Willison says Claude Opus 5.5 now builds fun video games

> Original title: I think October represents another inflection point in capabilities for coding agents and the models that drive them: Claude Opus 5.5 can...

- Source: Simon Willison
- Published: 2026-10-28T14:05:04.000Z
- Bad Influence: https://badinfluence.news/items/ebtmv1ypexpmk4o101qmdxwce
- Original: https://x.com/simonw/status/2115444742595260551

## Summary

Simon Willison says Claude Opus 5.5 can now build video games that are actually fun, which he calls another capability inflection point for coding agents in October. He links to a post on vibe game development on his blog.

## Post

I think October represents another inflection point in capabilities for coding agents and the models that drive them: Claude Opus 5.5 can now build video games that are actually fun https://simonwillison.net/2026/Oct/28/vibe-game-development/