This is affecting lots of users (myself included) and has prompted an official status page update, so it's very much real for users, but I guess only on claude.ai. Are you using Claude models through something/someone else?
I was getting tons of red 500 errors via Claude Code / CLI. Seems to be working right now, though.
Most of their customers only use the CLI or API.
I use Anthropic for 90% of my GenAI needs, software development, but I have never used Claude.ai for anything other than auth.