# Replit says top AI models' builds fail where features interact

> Original title: Every feature works on its own. Together, they break.

- Source: Replit
- Published: 2026-10-28T21:22:20.000Z
- Bad Influence: https://badinfluence.news/items/luznfnloymtzhx894ysejpwrv
- Original: https://x.com/Replit/status/2115554786661831074

## Summary

Replit says about three-quarters of top AI models' failed builds pass every single-feature check and break only where features meet. It gives four examples: a draft pull request hiding its merge conflict, comments unable to attach to text inside table cells, undo erasing a teammate's change, and a server owner without roles unable to moderate.

## Post

Every feature works on its own. Together, they break.

~3/4 of the top models' failed builds pass every single-feature check. They break where features meet:
▪️ Code hosting: a draft PR never shows its merge conflict.
▪️ Document editor: nobody can comment on a word inside a table cell.
▪️ Design tool: undo can erase a teammate's change, not just yours.
▪️ Chat: a server owner with no roles can't moderate anyone.