Daily provider-status observations and published incident history for Anthropic (Claude).
Component incident
Anthropic (Claude) has an active component incident; no global outage is indicated. Verified .
Official provider source.
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60.2%of 83 verified observed days had no reported provider issue
90-Day Trend
Dashed calendar markers below identify legacy observations whose source-at-observation was not recorded.
Monthly Status Summary
Month
Issue-free days
Days Tracked
Days with issues
October 2026
48.4%
31
16
September 2026
63.3%
30
11
This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.
Recorded Daily Status (Last 91 Days)
Aug 17Today
Legacy observation Operational Degraded Partial Outage Major Outage Maintenance No Data
Incident History
October 2026
Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
monitoring
We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
identified
We have identified the cause of elevated errors on requests to Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5, as well as fast mode requests to Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
investigating
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
We've mitigated the errors loading usage data on platform.claude.com and in the Admin API usage report. While we work on a full fix, the most recent ~30 minutes of usage may take longer to appear on the platform.claude.com. API requests are not affected, and we will provide additional updates here.
identified
We've identified the cause of errors loading usage data. The Admin API usage report has recovered, and fixes for the platform.claude.com Usage and Rate limits pages are in progress. The most recent 30 minutes of usage may be delayed. Core functionality is not affected.
investigating
We are continuing to work on elevated errors affecting usage data on the platform.claude.com Usage and Rate limits pages and the Admin API usage report. A mitigation for the Usage page and the Admin API usage report is rolling out; once it is in place, the most recent usage may take about 30 minutes to appear there. Core functionality is not affected.
investigating
We are investigating elevated errors affecting usage data on the platform.claude.com Usage page and the Admin API usage report. Core functionality is not affected. We will provide an update as soon as possible.
Elevated errors loading usage data on platform.claude.com
We are investigating elevated errors loading usage data on the platform.claude.com Usage page and the Admin API usage report endpoint since 5 PM PT. Messages API requests are not affected. We will provide an update as soon as possible.
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
identified
We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
investigating
We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
Claude Console (platform.claude.com)Claude API (api.anthropic.com)
monitoring
We have resolved the issue causing delays in credits being applied after purchase. We are monitoring closely to ensure no further issues.
investigating
We are investigating delays in credit purchases being reflected in account balances, resulting in some requests failing for insufficient credit balance. We will provide an additional update as soon as possible.
September 2026
Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude API
claude.aiClaude Console (platform.claude.com)Claude API (api.anthropic.com)Claude CodeClaude Cowork
monitoring
All services have been operating normally since 14:59 UTC. We are continuing to monitor.
monitoring
Most services have recovered as of 14:59 UTC. Signing in, starting new chats, voice conversations, Claude Code and Cowork sessions, purchases and file uploads are working again. Some messages sent between 14:00 and 14:59 UTC may not have been saved. We are monitoring closely and will post another update within 30 minutes.
investigating
The errors that began at 14:00 UTC were mitigated at 14:36 UTC, and existing conversations are mostly working again. A second issue is preventing many users from signing in (single sign-on and Sign in with Apple are unavailable), starting new chats, voice conversations and Claude Code or Cowork sessions, making purchases, and uploading files. If you're signed in, please don't sign out. We're working on a fix and will post another update within 30 minutes.
investigating
We have applied a mitigation and error rates have dropped substantially. Some sign-in attempts, account actions and Claude Code and Cowork sessions are still failing. We are continuing to work on a full fix.
investigating
We are investigating reports of degraded performance affecting claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork. We will provide an update as soon as possible.
investigating
We are investigating elevated error rates affecting Claude.ai (including the desktop and mobile apps), Claude Code and Claude Cowork. Some requests to the Claude API are also returning errors. We will provide an update as soon as possible.
investigating
We are investigating elevated error rates affecting Claude.ai (including the desktop and mobile apps), Claude Code and Claude Cowork. Users may see failed requests, errors loading or sending conversations, or be asked to sign in again; retrying may succeed. We will provide an update as soon as possible.
claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork
monitoring
We have seen success rates return to normal across affected models, and are monitoring closely to ensure no further issues.
identified
We are continuing to work to resolve errors affecting some models. At this time, requests to Claude Fable 5 and 5.1 and Mythos 5 and 5.1 have returned to normal success rates. We are working to resolve remaining errors affecting Claude Opus 5, and will provide an additional update shortly.
identified
We have identified the cause of elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 and are working on a fix. We will provide an update as soon as possible.
investigating
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.
Legacy Incident Archive
206 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.
June 2026
Opus 4.8 degraded service
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
identified
The issue has been identified and a fix is being implemented.
investigating
We are currently investigating this issue.
Elevated errors on many Claude models
majorSource not attested
Last archived state: resolved
View archived record details
monitoring
Success rates across all models have returned to expected levels. We are continuing to monitor closely to ensure no further issues will recur.
identified
We are continuing to work to resolve issues affecting success rates on Opus 4.7 and 4.8, and will provide additional updates as soon as possible.
identified
We have identified the issue and we are working to mitigate the issue. Current ongoing issues with frontier models are with Opus 4.7 and Opus 4.8 and other models have recovered.
investigating
We are currently investigating this issue.
Elevated errors on Opus 4.7
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
investigating
We are currently investigating this issue.
Issue affecting some Claude Code services
majorSource not attested
Last archived state: resolved
View archived record details
investigating
We have identified an issue which is resulting in some Claude Code services being degraded. As a result of this issue, users will see issues with Claude Code security reviews, code reviews, routines and some Claude Code web sessions. Our engineers are working to resolve these issues as soon as possible.
Elevated errors on Opus 4.6
majorSource not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
identified
We are continuing to work on a fix for this issue.
identified
The issue has been identified and a fix is being implemented.
investigating
We are currently investigating this issue.
Degraded performance for Claude Sonnet 4.6
minorSource not attested
Last archived state: resolved
View archived record details
investigating
We are investigating elevated errors on requests to Claude Sonnet 4.6. We will provide an update as soon as possible.
Elevated errors on Claude Sonnet 4.6
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
identified
The issue has been identified and a fix is being implemented.
Elevated errors for Claude Opus 4.7
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
identified
The issue has been identified and a fix is being implemented.
investigating
We are currently investigating this issue.
Sonnet 4.5 elevated errors
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
We are continuing to monitor for any further issues.
monitoring
A fix has been implemented and we are monitoring the results.
investigating
We are currently investigating this issue.
Opus 4.7 elevated errors
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
