Anthropic’s Claude artificial intelligence models had “elevated errors” on Monday, as the app held its spot as the most popular free app on Apple

’s App Store.

Claude’s status website showed “degraded performance” on Claude Opus 4.6, its latest model released last month.

In an update at 10:49 a.m. ET, the site stated that the Opus 4.6 issue was identified and a fix was in the works.

An update at 10:47 a.m. ET on the site said that issues on claude.ai, console and claude code had been resolved.