Anthropic has confirmed an outage affecting its AI assistant, Claude, with users reporting failed requests and "529 Overloaded" errors across multiple AI models. The company is aware of the issue and is working to restore services after elevated errors and latency disrupted both Claude and applications relying on its API. The issue was first acknowledged by Anthropic at 5:57am UTC on July 30. In a follow-up update at 6:26am UTC, Anthropic confirmed that all models except Opus 5 had recovered and that they were working to restore Opus 5 as well. During the outage, users trying to access Claude or apps powered by Anthropic's API faced error messages, with one of the most common reading: "API Error: 529 Overloaded. This is a server-side issue, usually temporary, try again in a moment." The disruption also affected third-party tools and services relying on Anthropic's API, with users reporting failed requests, increased latency, and interrupted AI responses. Although most Claude models have recovered, Anthropic has warned some users may still experience errors until the issue is completely resolved.