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Degraded PerformanceResolvedOfficial report

Some users may encounter issues with GPT-5.4-C model in Codex

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Started

Tuesday, April 21, 2026

02:34 AM UTC

Duration

1h 58m

total

Resolved

04:33 AM UTC

Apr 21, 2026

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About This Report

Whisper 30-day uptime: 90.1% based on Tickerr's independent monitoring checks.

This incident was sourced from Whisper's official Atlassian Statuspage. Tickerr ingests updates every 10 minutes to surface incidents as they are posted by the provider.

This incident lasted 1h 58m.

Tickerr monitors 90+ AI tools independently. View live Whisper status or all AI tool status.

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View all Whisper incident history →