# AI API outages on August 28, 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 August 28, 2026?

Not by our measurements. No failure of Anthropic was seen from two or more regions at once. Anthropic's own status page opened 1 entry that day (self-reported, listed below).
- self-reported 17:22 UTC: Elevated errors on Claude Code and Claude Cowork (major)

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

## Was the stepfun API down on August 28, 2026?

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

| UTC | What failed | Regions | Duration (lower bound) | Failed probes | Verdict |
| --- | --- | --- | --- | --- | --- |
| 07:15-07:20 | host probes | sa-east us-central | >=5 min | 2 | unattributed |

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

Source: https://llmlatency.dev/incidents/2026-08-28 · CC BY 4.0