Claude’s AI chat service crashed for users in the UK and abroad on Tuesday 23 June 2026. Users experienced issues when they tried to launch a conversation. It earlier that morning and spanned the entire world. When users accessed it, the system produced poor replies.
The team behind the service says they pinpointed the fault after checking the logs towards the end of Tuesday. They are monitoring the system while they implement a fix. They say the problem will be fixed once they finish checking operations are back online. People might try again in a few minutes.