Anthropic experienced a significant outage on April 28, 2026, affecting Claude.ai and its API, including Claude Code. The incident, which began around 17:41 UTC and was resolved by 18:52 UTC, caused elevated errors and prevented users from accessing services. Users reported disruptions to their workflows, with some noting the outage occurred at critical times like before demos. AI
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IMPACT Service disruptions for Claude.ai and its API can halt workflows for users relying on it for coding and other tasks.
RANK_REASON This is a report of a service outage for an existing AI product, not a new release or significant industry event.