Claude’s AI chat service crashed for users in the UK and abroad on Tuesday 23 June 2026. Users faced glitches when they tried to start a chat. It in the early hours and reached everywhere. When users gave it a go, the system produced incorrect outputs.
The team behind the service says they identified the issue after checking the logs in the evening on Tuesday. They are observing traffic while they implement a fix. They say the problem should resolve once they finish checking services are restored. People are encouraged to try again once it stabilises.