# AI API outages on October 25, 2026 (UTC)

Measured every 5 minutes from 4 regions. An outage is attributed to a provider only when it failed from 2+ regions at once and no other provider failed in the same minutes.

## Was the Claude API (Anthropic) down on October 25, 2026?

Not by our measurements. No failure of Anthropic was seen from two or more regions at once. Anthropic's own status page opened 2 entries that day (self-reported, listed below).
- self-reported 06:14 UTC: Elevated errors for Claude Sonnet 5.5 and other models (major)
- self-reported 08:17 UTC: Elevated errors for Claude Fable 5.1 (major)

Live status now: https://llmlatency.dev/provider/anthropic

## Was the writer API down on October 25, 2026?

Not attributably. 1 multi-region failure(s) of writer coincided with failures of other providers, so the cause sat above writer and is not blamed on it.

| UTC | What failed | Regions | Duration (lower bound) | Failed probes | Verdict |
| --- | --- | --- | --- | --- | --- |
| 01:09-10:05 | host probes | ap-tokyo eu-hetzner sa-east us-central | >=536 min | 292 | unattributed |

Live status now: https://llmlatency.dev/provider/writer

## Was the yi-01ai API down on October 25, 2026?

Not attributably. 1 multi-region failure(s) of yi-01ai coincided with failures of other providers, so the cause sat above yi-01ai and is not blamed on it.

| UTC | What failed | Regions | Duration (lower bound) | Failed probes | Verdict |
| --- | --- | --- | --- | --- | --- |
| 11:47-11:57 | host probes | ap-tokyo sa-east | >=10 min | 3 | unattributed |

Live status now: https://llmlatency.dev/provider/yi-01ai

Source: https://llmlatency.dev/incidents/2026-10-25 · CC BY 4.0