Anthropic reports widespread Claude AI outage with 529 Overloaded errors
Anthropic confirmed that its Claude AI assistant suffered a service disruption, triggering 529 Overloaded errors across most models.
Anthropic acknowledged a significant outage of its Claude AI assistant on July 30, noting that many users encountered "529 Overloaded" server-side errors. The problem was first flagged at 05:57 UTC, with the firm indicating it was probing the cause of elevated error rates across several Claude models. An update at 06:26 UTC reported that all models except Opus 5 had returned to normal operation, and efforts were ongoing to bring Opus 5 back online.
The disruption impacted not only the Claude chatbot but also external services that depend on Anthropic’s API, leading to failed requests and increased response times. While most models have recovered, Anthropic warned that some users might still see errors until the fix is complete.
Why it matters
The outage temporarily halted access to a major AI tool, affecting developers and businesses that integrate Claude via the API.
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