Elevated errors on Claude Sonnet 4.6 and Opus 4.8

Minor · Started Jun 17, 2026 · 12:47 AM

⚡ Pulsetic detected this 420 minutes before Claude acknowledged it

Duration

Ongoing
Severity

Minor
Detection lead

420 min
User reports

Peak 6/hr

Summary

Elevated errors on Claude Sonnet 4.6 and Opus 4.8

At this time, success rates for Claude Sonnet 4.6 have recovered and we are working to resolve an issue resulting in elevated errors on Opus 4.8. We will provide additional updates as soon as possible.

Started

Jun 17, 2026 · 12:47 AM
Status

Identified
Duration

Ongoing
Severity

Minor

Detection lead

Pulsetic caught this 420 minutes early

Pulsetic detected

~420 min before acknowledgement

User reports and synthetic probes crossed the detection threshold
Claude acknowledged

Jun 17, 2026 · 12:47 AM

Via official status page

Event timeline

How this incident unfolded

●

Detected by Pulsetic
Jun 16 · 5:47 PM Pulsetic

User reports and synthetic probes crossed the detection threshold — 420 min before the official acknowledgement.
◐

Investigating
Jun 17 · 12:47 AM Claude

We are currently investigating this issue.
◆

Identified
Jun 17 · 1:52 AM Claude

At this time, success rates for Claude Sonnet 4.6 have recovered and we are working to resolve an issue resulting in elevated errors on Opus 4.8. We will provide additional updates as soon as possible.