High impact

Claude partial outage

Anthropic•USA•

What happened

A partial outage affected Claude.ai, the Claude desktop and mobile apps, Claude Code, Claude Cowork, and the Claude API, causing elevated error rates and failures in signing in, starting new chats, voice conversations, purchases, file uploads, and some account actions. The issue began at 07:00 PT (14:00 UTC) and was largely resolved by 14:59 UTC, though a few sign‑in attempts and sessions continued to fail. Users may have lost messages sent between 14:00 and 14:59 UTC. Anthropic applied a mitigation that reduced error rates and continues to monitor the services. The incident impacted all listed Claude services and the API.

Why it matters

For everyday users, the outage meant temporary loss of access to Claude’s chat and productivity tools, potentially affecting work that relied on them. Developers using the Claude API also faced request errors, which could disrupt integrations.

Reality check

An automated, sceptical read of the source

Incremental. The outage was a service disruption rather than a new feature or breakthrough, and the resolution involved standard mitigation steps.

Who it affectsEveryday usersDevelopersBusinesses
What to watchWatch for a follow‑up update from Anthropic within the next 30 minutes confirming full restoration of all services.
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