AI investor Matt Shumer says an AI agent using GPT-5.6-Sol deleted his Mac files after expanding the HOME variable in a rm command

GPT-5.6-Sol just accidentally deleted almost ALL of my Mac’s files. And this is why I trust Fable 1000x more.

I'm so angry... the OpenAI team is looking into it, but this feels like something that should happen with GPT-3.5. Not a mid-2026 frontier model on the highest reasoning level. https://twitter.com/mattshumer_/status/2075657271401390161

Agents are now working on piecing everything back together... crossing my fingers Protect your systems, people... freak accidents happen https://twitter.com/mattshumer_/status/2075657271401390161

local agents were a mistake. https://twitter.com/mattshumer_/status/2075657271401390161

The crazy thing is, if you read my GPT-5.6-Sol review, I already much preferred Fable, and stopped using 5.6 weeks ago. The only reason I was using it today is because the OpenAI team asked me to test Ultra mode. Fwiw, they are awesome to work with, and this is a freak… Show more

Another reason not to run coding agents on your laptop, they can wipe all your files! Although in this case they'd have wiped my server, but at least I have backups https://twitter.com/mattshumer_/status/2075657271401390161