FaultMesh vs Gremlin
FaultMesh
faultmesh.com
Gremlin
gremlin.comSide by side
| Figure | FaultMesh | Gremlin |
|---|---|---|
| Price from | $49/mo | $3,750/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 8 |
| Spec score · Chaos Engineering Platforms | 8.9 (#2) | 9.0 (#1) |
| API | A single REST gateway exposes endpoints for authentication, experiments, game days, incidents, remediation, scoring, topology and licensing. | The public REST API uses the base URL https://api.gremlin.com/v1 and has an OpenAPI specification. |
| API authentication | Interactive clients use JWT bearer tokens while agents and CI can use long-lived API keys. | API requests can authenticate with bearer tokens or user and team API keys, with MFA-supported login flows. |
| Compliance | FaultMesh describes its controls and processes as SOC 2-aligned, with formal certification on the roadmap, and its data handling as GDPR-aligned. | Gremlin reports ISO 27001/27017, PCI DSS Level 1, SOC 1/2/3 and SOC 2 Type II coverage for its hosted environment. |
| Fault injection | The platform injects latency, packet loss, pod kills, CPU stress, memory stress and other faults through Chaos Mesh custom resources. | Experiments can target services, hosts, containers and serverless workloads, with automatic halt and rollback controls. |
| Purpose | FaultMesh injects controlled failures, detects anomalies in real time, remediates automatically and scores system resilience on a Kubernetes-native platform. | Gremlin helps engineering teams find failure modes, fix them, and validate reliability before failures become outages. |
| Safety controls | Experiments support dry runs, blast-radius limits, an error-budget gate, timeout monitoring and an organisation-wide kill switch. | Gremlin supports blast radius controls and automatic halt and rollback of experiments if issues arise. |
| What it does | FaultMesh is an enterprise chaos-engineering platform that injects controlled failures, detects anomalies, remediates problems and scores service resilience. | Gremlin is a reliability platform that injects controlled failures and tests systems before incidents affect users. |
Plans
Gremlin
- Gremlin 30-day trialFree
- Gremlin Platform trialFree
- Gremlin Reliability Management Platform on AWS Marketplace$45,000 a year
- Fault injection suitePriced on request
- Fault injection suite (stand-alone)Priced on request
- Gremlin Foresight AIPriced on request
- Gremlin PlatformPriced on request
- Professional ServicesPriced on request
In their own words
FaultMesh
FaultMesh is a Kubernetes-native platform for testing system resilience through controlled failures, anomaly detection and automatic remediation. It injects latency, packet loss, pod kills, CPU stress and memory stress using Chaos Mesh CRDs. Real-time metric analysis can surface regressions, while rules and actions can heal systems automatically. The platform scores services across six dimensions and assigns L1–L5 maturity levels. It tracks SLO error budgets and supports multi-step chaos game days with checks between steps. Safety controls include blast-radius limits, dry runs, an error-budget gate, a background monitor and an instant kill switch. Teams can use managed SaaS or deploy a Kubernetes Operator in their own cluster, where data stays inside their perimeter. Security features include JWT and API-key authentication, role-based Admin, Operator and Viewer access, encryption in transit and an immutable audit trail. The maker describes controls as SOC 2-aligned, with formal certification on the roadmap, and data handling as GDPR-aligned. Starter is free for up to three services; Growth costs $49 a month billed per host, and a 14-day trial is available.
Gremlin
Gremlin is a chaos engineering platform for engineering teams seeking failure modes and ways to validate reliability before failures become outages. It injects faults into services, hosts, containers, and serverless workloads so teams can examine system responses. Blast radius controls limit experiments, which can halt and roll back automatically if issues arise. Teams can sequence experiments into incident scenarios, schedule them, and use GameDay Manager to prepare, run, analyze, and store results. The platform also includes dependency discovery, standardized test suites and reliability scores, disaster recovery testing, detected risks, and organization-wide benchmarking. Documented integrations include Slack, Datadog, Dynatrace, AWS, Azure, Google Cloud Platform, Grafana Cloud k6, Jira, and custom webhooks. Supported environments include public clouds, Linux, Windows, Kubernetes, and on-premises deployments through self-hosted Private Edition. Gremlin states that it is SOC 2 Type II certified and encrypts data in transit with TLS and at rest with AES-256. A 30-day trial is available without a credit card and does not auto-convert. Platform pricing is by custom quote per service; agents, targets, and test volume are sized during the pricing conversation.