comparisson
published
July 15, 2026
updated
July 17, 2026
Gremlin vs AWS FIS: Multi-cloud reliability management vs. AWS fault tool
Compare Gremlin and AWS Fault Injection Service across infrastructure coverage, safety, pricing, enterprise features, and AI capabilities. See which tool fits your reliability needs.
One tool covers AWS. The other covers everything — starting with AWS.
Gremlin is an enterprise reliability management platform that helps organizations measure, manage, and improve reliability across their entire infrastructure — including AWS, where it supports the same services FIS does (and more), plus bare metal, on-prem, Azure, GCP, and multi-cloud environments. AWS Fault Injection Service (FIS) is a managed fault injection tool scoped exclusively to AWS.
If your entire stack runs on AWS and you need a lightweight way to run fault injection tests on individual services, FIS gets you started quickly. But if you want to go beyond individual tests — measuring reliability across hundreds of services, giving engineering leadership forward-looking data, running on multi-cloud or hybrid infrastructure, or simply getting more out of your AWS testing with reliability scoring and org-wide management — Gremlin does all of that, starting with the same AWS services FIS covers.
Gremlin vs. AWS FIS, side by side
Gremlin is an enterprise reliability management platform that helps organizations measure, manage, and improve reliability across their entire infrastructure — including AWS, where it supports the same services FIS does (and more), plus bare metal, on-prem, Azure, GCP, and multi-cloud environments. AWS Fault Injection Service (FIS) is a managed fault injection tool scoped exclusively to AWS.
If your entire stack runs on AWS and you need a lightweight way to run fault injection tests on individual services, FIS gets you started quickly. But if you want to go beyond individual tests — measuring reliability across hundreds of services, giving engineering leadership forward-looking data, running on multi-cloud or hybrid infrastructure, or simply getting more out of your AWS testing with reliability scoring and org-wide management — Gremlin does all of that, starting with the same AWS services FIS covers.
Gremlin is an enterprise reliability management platform that helps organizations measure, manage, and improve reliability across their entire infrastructure — including AWS, where it supports the same services FIS does (and more), plus bare metal, on-prem, Azure, GCP, and multi-cloud environments. AWS Fault Injection Service (FIS) is a managed fault injection tool scoped exclusively to AWS.
If your entire stack runs on AWS and you need a lightweight way to run fault injection tests on individual services, FIS gets you started quickly. But if you want to go beyond individual tests — measuring reliability across hundreds of services, giving engineering leadership forward-looking data, running on multi-cloud or hybrid infrastructure, or simply getting more out of your AWS testing with reliability scoring and org-wide management — Gremlin does all of that, starting with the same AWS services FIS covers.
You're investing millions in reliability. Can you show it's working?
When every metric in your reliability stack—incident counts, MTTR, uptime—is backward looking, you only see what already went wrong. The result: strategic decisions driven by lagging data, resilience investments that go unvalidated, and gaps that only surface after an outage.