Degraded performance on Claude for Microsoft Office 365
17:09 UTC
Degraded performance on platform.claude.com and Claude for Microsoft Office 365
September 02, 2026
21:21 UTC
Elevated errors for Claude Sonnet 5
September 03, 2026
12:40 UTC
Elevated errors for Claude Sonnet 5
13:32 UTC
Elevated errors for multiple models
September 04, 2026
No incidents reported
September 05, 2026
No incidents reported
September 06, 2026
No incidents reported
September 07, 2026
No incidents reported
September 08, 2026
No incidents reported
September 09, 2026
No incidents reported
September 10, 2026
No incidents reported
September 11, 2026
14:23 UTC
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
September 12, 2026
No incidents reported
September 13, 2026
No incidents reported
September 14, 2026
No incidents reported
September 15, 2026
09:48 UTC
Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1
September 16, 2026
No incidents reported
September 17, 2026
No incidents reported
September 18, 2026
No incidents reported
September 19, 2026
No incidents reported
September 20, 2026
No incidents reported
September 21, 2026
00:58 UTC
Elevated errors for multiple models
September 22, 2026
No incidents reported
September 23, 2026
No incidents reported
September 24, 2026
No incidents reported
Incidents in the last 30 days
Elevated errors for multiple models
Claude
·
Resolved 3 days ago
·
We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.
Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1
Claude
·
Resolved 10 days ago
·
We are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
Claude
·
Resolved 13 days ago
·
We are investigating elevated errors on requests to Claude Fable 5.1 and Claude Mythos 5.1. We will provide an update as soon as possible.
Elevated errors for multiple models
Claude
·
Resolved 21 days ago
·
We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. We will provide an update as soon as possible.
Elevated errors for Claude Sonnet 5
Claude
·
Resolved 22 days ago
·
We are investigating elevated errors on requests to Claude Sonnet 5. We will provide an update as soon as possible.
Elevated errors for Claude Sonnet 5
Claude
·
Resolved 22 days ago
·
We are investigating elevated errors on requests to Claude Sonnet 5. We will provide an update as soon as possible.
Degraded performance on platform.claude.com and Claude for Microsoft Office 365
Claude
·
Resolved 23 days ago
·
We are investigating reports of degraded performance affecting some Claude services, including docs.claude.com. We are working to resolve these issues and will provide an update as soon as possible.
Degraded performance on Claude for Microsoft Office 365
Claude
·
Resolved 23 days ago
·
We are investigating elevated errors affecting Claude for Microsoft Office 365. We will provide an update as soon as possible.
Degraded performance on claude.ai and Claude Code
Claude
·
Resolved 24 days ago
·
We are investigating reports of degraded performance affecting Claude in Slack, Claude Code on the web, and Code Review. We will provide an update as soon as possible.
Degraded performance on claude.ai
Claude
·
Resolved 24 days ago
·
We are investigating reports of elevated errors affecting chats on claude.ai. We will provide an update as soon as possible.