Cloud Incidents — April 20, 2026
All incidents from major cloud and AI providers on this date.
Cross-Provider Correlation Detected
Multiple providers experienced incidents within a 2-hour window on this date. This may indicate shared infrastructure issues or broader internet events.
Concurrent window
minor
Cloudflare
— Issues solving Challenges
2026-04-20 05:01 UTC
minor
Zoom
— Service Degradation Affecting Live Transcriptions in Zoom Client 7.0.0 and Above
2026-04-20 06:05 UTC
major
Anthropic
— Claude Sonnet 4.5 error spike
2026-04-20 06:14 UTC
Concurrent window
minor
Vercel
— Observability Alerts degraded
2026-04-20 09:38 UTC
minor
Cloudflare
— Rulesets Rate Limiting accuracy
2026-04-20 10:13 UTC
Concurrent window
major
GitHub
— Partial degradation for code scanning default setup and for code quality
2026-04-20 13:28 UTC
minor
Anthropic
— Elevated errors for uploading files
2026-04-20 13:31 UTC
major
OpenAI
— Users unable to load ChatGPT, Codex and API Platform
2026-04-20 14:35 UTC
Concurrent window
minor
Cloudflare
— Network Performance Issues in parts of Asia and Europe.
2026-04-20 17:00 UTC
minor
OpenAI
— Elevated errors for ChatGPT conversations in Europe
2026-04-20 17:29 UTC
minor
Cloudflare
resolved
Issues solving Challenges
Started: 2026-04-20 05:01 UTC
Duration: 54m
minor
Zoom
resolved
Service Degradation Affecting Live Transcriptions in Zoom Client 7.0.0 and Above
Started: 2026-04-20 06:05 UTC
Duration: 241m
major
Anthropic
resolved
Claude Sonnet 4.5 error spike
Started: 2026-04-20 06:14 UTC
Duration: 71m
none
OpenAI
resolved
Users may encounter issue with ChatGPT Business after upgrade or adding new seats for up to an hour
Started: 2026-04-20 07:13 UTC
Duration: 740m
minor
Vercel
resolved
Observability Alerts degraded
Started: 2026-04-20 09:38 UTC
Duration: 760m
major
Vercel
resolved
Unaccessible runtime logs in the dashboard
Started: 2026-04-20 10:10 UTC
Duration: 26m
minor
Cloudflare
resolved
Rulesets Rate Limiting accuracy
Started: 2026-04-20 10:13 UTC
Duration: 771m
major
GitHub
resolved
Partial degradation for code scanning default setup and for code quality
Started: 2026-04-20 13:28 UTC
Duration: 936m
minor
Anthropic
resolved
Elevated errors for uploading files
Started: 2026-04-20 13:31 UTC
Duration: 50m
major
OpenAI
resolved
Users unable to load ChatGPT, Codex and API Platform
Started: 2026-04-20 14:35 UTC
Duration: 253m
minor
Cloudflare
resolved
Network Performance Issues in parts of Asia and Europe.
Started: 2026-04-20 17:00 UTC
Duration: 0m
minor
OpenAI
resolved
Elevated errors for ChatGPT conversations in Europe
Started: 2026-04-20 17:29 UTC
Duration: 108m
minor
Vercel
resolved
Elevated errors on Vercel Dashboard and API endpoints
Started: 2026-04-20 19:40 UTC
Duration: 75m
minor
OpenAI
resolved
Some users will see higher error rates on Codex
Started: 2026-04-20 23:16 UTC
Duration: 0m