Updated 23h ago

Compare SLAs

Promised uptime per service, credits, support and what the status pages showed, side by side.

Change vendors (up to four; 3 picked)

VendorHighest SLAWith an SLAFastest support

Promise vs reality

ServiceDowntime vs allowed

Promised in the SLAObserved on the vendor's status pagePartial historyShortfall

Best SLA by category

Category	AWS	Microsoft Azure	Google Cloud
Compute	99.99%Amazon EC2	99.99%Azure Virtual Machines	99.99%Compute Engine
AI models	99.9%Amazon Bedrock	99.9%Azure OpenAI in Foundry Models	99.9%Vertex AI (Gemini API on Vertex)
Databases	99.999%Amazon DynamoDB	99.995%Azure SQL Database	99.99%Cloud SQL
Storage	99.9%Amazon S3 (Standard)	99.99%Azure Blob Storage (Storage Accounts)	99.95%Cloud Storage
Data platforms	Not on file	Not on file	99.99%BigQuery

Support: fastest first response

Vendor and planFastestTargets

AWS Business Support+30 minBusiness-critical system down: < 30 mins · Production system down: < 1 hour · Production system impaired: < 4 hours · System impaired: < 12 hours · General guidance: < 24 hours
AWS Enterprise Support15 minBusiness/mission-critical system down: < 15 mins · Production system down: < 1 hour · Production system impaired: < 4 hours · System impaired: < 12 hours · General guidance: < 24 hours
AWS Unified Operations5 minMission-critical system down: < 5 mins from Incident Management Engineer · Production system down: < 1 hour · Production system impaired: < 4 hours · System impaired: < 12 hours · General guidance: < 24 hours
AWS Developer (legacy, closed to new subscriptions)n/aNo published response targets.
AWS Business (legacy, closed to new subscriptions)1 hCritical issues: 1 hour
AWS Enterprise On-Ramp (legacy, being deprecated)30 minCritical issues: 30 minutes
Google Cloud Standard4 hP2: 4 hours · P3: 8 hours · P4: 8 hours
Google Cloud Enhanced1 hP1: 1 hour · P2: 4 hours · P3: 8 hours · P4: 8 hours
Google Cloud Premium15 minP1: 15 minutes · P2: 2 hours · P3: 4 hours · P4: 8 hours
Microsoft Azure Basicn/aNo published response targets.
Microsoft Azure Developern/aMinimal business impact (Sev C): Within eight business hours
Microsoft Azure Standard1 hCritical business impact (Sev A): Within one hour · Moderate business impact (Sev B): Within four hours · Minimal business impact (Sev C): Within eight business hours
Microsoft Azure Professional Direct1 hCritical business impact (Sev A): Within one hour · Moderate business impact (Sev B): Within two hours · Minimal business impact (Sev C): Within four business hours
Microsoft Azure Unified Enterprise15 minCritical business system down (Sev 1): Within 15 mins for Azure, one hour for all other products · Critical business impact (Sev A): Within one hour · Moderate business impact (Sev B): Within two hours · Minimal business impact (Sev C): Within four business hours

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