Gremlin vs AWS Fault Injection Service

Gremlin8.9Visit AWS Fault Injection Service8.4Visit

Higher score Gremlin #4 in Chaos Engineering Platforms 8.9/10 Pricing on request · 30-day trial Free trial✓ 5 of 5 features Visit Gremlin

vs

AWS Fault Injection Service #9 in Chaos Engineering Platforms 8.4/10 Paid ✓ 5 of 5 features Visit AWS FIS

• Gremlin fits best

  Enterprise teams needing deep managed chaos

• AWS Fault Injection Service fits best

  AWS-native controlled fault injection

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Side by side

Feature	Gremlin 8.9/10 Visit ↗	AWS Fault Injection Service 8.4/10 Visit ↗
At a glance
Editor score	8.9	8.4
Ranking	#4 in Chaos Engineering Platforms	#9 in Chaos Engineering Platforms
Best for	Enterprise teams needing deep managed chaos	AWS-native controlled fault injection
Pricing model	Paid	Paid
Starting price	—	$0.10/unit usage-based
Free plan	—	Not checked yet
Free trial	30 days	—
Deployment	Cloud, Self-hosted	Cloud
Platforms	Web, Windows, Linux	Web, Windows, macOS, Linux
Support	Email, Phone, Community, Docs	Docs
Built for	Mid-market, Enterprise	Mid-market, Enterprise
Features Gremlin 5/5 · AWS Fault Injection Service 5/5
Kubernetes support	✓	✓
Cloud fault injection	✓	✓
Network fault injection	✓	✓
Experiment scheduling	✓	✓
Blast-radius controls	✓	✓
Specs
Deployment model	Hybrid	Cloud
Our review
Pros	Controlled experiments across hosts, containers, Kubernetes, and serverless Health checks, automatic halt, rollback, and blast-radius controls Reliability scores, reporting, scenarios, APIs, and broad integrations	Preconfigured faults across AWS services, networking, storage, and databases EKS pod injection plus one-time and recurring experiment scheduling Safety levers, alarm stop conditions, and multi-account experiments
Cons	Paid pricing requires contacting sales There is no free plan Fault Injection is also offered as a standalone product	Usage costs vary with action minutes, accounts, and reports Experiment reports require a customer-provided CloudWatch Dashboard Experiment Scheduler is unavailable in AWS GovCloud regions
Our verdict	Gremlin is a chaos engineering and reliability platform for SRE, platform, and engineering teams. It supports controlled fault injection across services, hosts, containers, Kubernetes resources, and serverless workloads. Teams can run… Read the review →	AWS Fault Injection Service is a managed chaos engineering service for teams running workloads on AWS. It lets teams define experiment templates with actions, targets, and stop conditions, then run or schedule controlled fault-injection… Read the review →

Strengths and trade-offs

• Gremlin — where it wins

  • Controlled experiments across hosts, containers, Kubernetes, and serverless
  • Health checks, automatic halt, rollback, and blast-radius controls
  • Reliability scores, reporting, scenarios, APIs, and broad integrations

  Where it doesn't

  • Paid pricing requires contacting sales
  • There is no free plan
  • Fault Injection is also offered as a standalone product

• AWS Fault Injection Service — where it wins

  • Preconfigured faults across AWS services, networking, storage, and databases
  • EKS pod injection plus one-time and recurring experiment scheduling
  • Safety levers, alarm stop conditions, and multi-account experiments

  Where it doesn't

  • Usage costs vary with action minutes, accounts, and reports
  • Experiment reports require a customer-provided CloudWatch Dashboard
  • Experiment Scheduler is unavailable in AWS GovCloud regions

• Gremlin8.9/10 · Pricing on request · 30-day trial

  A broad managed chaos platform for controlled failure testing across modern infrastructure.

  Visit GremlinFull verdict →
• AWS Fault Injection Service8.4/10 · Paid

  A focused AWS service for controlled resilience experiments with usage-based pricing.

  Visit AWS FISFull verdict →