# Elevated error rates on requests to some models

- Provider: [Anthropic](https://down.guide/anthropic)
- Level: confirmed
- Impact: Partial outage
- lasted 1h 28m
- started 2026-05-15 00:18 UTC
- Claude API (api.anthropic.com), Claude Code
- id: DWN-6044fdc569
- Official page: https://stspg.io/xmrcmwz84zd5

## Updates from Anthropic
### 2026-05-15 00:18 UTC: investigating
We are currently investigating this issue.

### 2026-05-15 00:19 UTC: investigating
We are continuing to investigate this issue.

### 2026-05-15 01:06 UTC: identified
We are currently working to resolve issues affecting requests to Claude Opus and Sonnet 4.6, though success rates for Opus 4.7 have returned to normal.

### 2026-05-15 01:26 UTC: identified
We are working to resolve errors impacting Claude Opus 4.6, and have seen both Sonnet 4.6 and Opus 4.7 return to normal success rates.

### 2026-05-15 01:46 UTC: resolved
This incident has been resolved.

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