Cloud Providers · reliability comparison
Amazon Web Services (AWS) vs IBM Cloud: which is more reliable? (2026)
IBM Cloud is more reliable than Amazon Web Services (AWS), scoring 88.4 vs 61.8 out of 100. Over the last 90 days Amazon Web Services (AWS) reported 7 incidents and IBM Cloud reported 1, with effective uptime of 99.43% and 100% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | Amazon Web Services (AWS) | IBM Cloud |
|---|---|---|
| Reliability score | 61.8 | 88.4 |
| Rank (cloud providers) | #3 | #1 |
| Uptime (90 days) | 99.43% | 100% |
| Incidents (90 days) | 7 | 1 |
| Partial / major outages | 0 | 1 |
| Avg time to resolve | 11h 44m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Amazon Web Services (AWS) and IBM Cloud differ
- Amazon Web Services (AWS) reported 7× as many incidents as IBM Cloud over the last 90 days (7 vs 1).
- IBM Cloud had 1 partial or major outage, compared with 0 for Amazon Web Services (AWS).
90-day uptime
Amazon Web Services (AWS)
IBM Cloud
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Amazon Web Services (AWS) incidents
- Degraded performanceOct 30, 2026 · resolved in <1m
Affected: apigateway, us-west-2
- Degraded performanceOct 4, 2026 · resolved in 2h 42m
Affected: internetconnectivity, eu-south-2
- Degraded performanceSep 21, 2026 · resolved in 58m
Affected: ec2, us-east-1
- Degraded performanceSep 3, 2026 · resolved in 2h 18m
Affected: multipleservices, us-west-2
- Degraded performanceAug 21, 2026 · resolved in 38m
Affected: connect, ap-northeast-1
- Degraded performanceAug 19, 2026 · resolved in 3h 32m
Affected: ec2, eu-west-2
Recent IBM Cloud incidents
- Partial outageOct 21, 2026 · resolved (duration not published)
Other cloud providers to consider
- Hetzner Cloud · #2 · 99.61% uptime
- UpCloud · #4 · 99.37% uptime
- Google Cloud · #5 · 98.90% uptime
- DigitalOcean · #6 · 98.04% uptime