Anthropic reported degraded performance across Claude Code services
Anthropic documented degraded performance affecting Claude in Slack, Claude Code on the web and Code Review for roughly two hours and twenty minutes on August 31.
- First observed
- Aug 31, 2026, 6:55:00 PM
- Disclosed
- Aug 31, 2026, 9:21:32 PM
- Status
- Resolved
- Confidence
- 98%
- Organization
- Anthropic
- Last reviewed
- Sep 4, 2026
Observed
Facts supported by sources
- Anthropic reported degraded performance affecting Claude in Slack, Claude Code on the web and Code Review.
- Anthropic's resolution update states that impact occurred from 16:55 UTC to 19:16 UTC on August 31.
Assessment
Interpretation, not observation
- The public status record does not provide a root cause or quantified user count.
Impact
Impact
Degraded coding, review and Slack-based Claude workflows for affected users during the incident window.
Response
Response
Anthropic investigated the degradation and reported Claude Code restored after the impact window ended.