# AWS Fault Injection Service vs Chaos Toolkit

**Leader by Vioscale score:** AWS Fault Injection Service

| Attribute | AWS Fault Injection Service | Chaos Toolkit |
|---|---|---|
| **Vioscale score** | 62 (76% (high)) | 40.3 (59% (medium)) |
| activity.commits_last_30d | - | 7 |
| adoption.dependent_repos | - | 30 |
| adoption.github_stars | - | 2,020 |
| deployment.options | `{"cloud":true}` | `{"self_hosted":true}` |
| description.long | A managed service that helps engineering teams discover application weaknesses by running controlled fault injection experiments. It provides pre-built failure scenarios, automatic safeguards to prevent unintended impact, and monitoring integration to track application behavior during tests. | An open-source framework that lets developers declare and execute chaos engineering experiments using code files, enabling discovery of system weaknesses through intentional disruption and integration with CI/CD pipelines. |
| integrations.count | 1 | - |
| integrations.list | `[{"name":"AWS CloudWatch"}]` | - |
| language.primary | - | Python |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Standard Usage","summary":"$0.10 per action-minute","features":["Single-account experiments","Pre-built scenarios","CloudWatch integration","Safety controls"],"components":[{"per":{"qty":1,"unit":"action-minute"},"kind":"metered","amount":0.1,"currency":"USD"}],"description":"Pay per action-minute for experiments","contactSales":false},{"free":false,"name":"Multi-Account Usage","summary":"$0.10 per action-minute + $0.10 per action-minute per additional account","features":["Multi-account orchestration","Cross-account targeting"],"components":[{"per":{"qty":1,"unit":"action-minute"},"kind":"metered","amount":0.1,"currency":"USD"},{"per":{"qty":1,"unit":"action-minute per additional account"},"kind":"metered","amount":0.1,"currency":"USD"}],"description":"Additional charges per target account","contactSales":false},{"free":false,"name":"GovCloud Pricing","summary":"$0.12 per action-minute in GovCloud","features":["US GovCloud regions support"],"components":[{"per":{"qty":1,"unit":"action-minute"},"kind":"metered","amount":0.12,"currency":"USD"}],"description":"Pricing for AWS GovCloud US regions","contactSales":false}],"addOns":[{"name":"Experiment Reports","components":[{"kind":"one_time","amount":5,"currency":"USD"}]}],"summary":"From $0.10 per action-minute. Free tier available.","currency":"USD","freeTier":true,"sourceUrl":"https://aws.amazon.com/fis/pricing/","retrievedAt":"2026-08-18T12:54:27.351Z","startingPrice":{"amount":0.1,"period":"month","currency":"USD"}}` | `{"type":"open_source","summary":"Free and open source under Apache 2 license","freeTier":true,"sourceUrl":"https://chaostoolkit.org","retrievedAt":"2026-08-18T12:51:25.086Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | low | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 50 |
| release.history | - | `[{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.20.0","date":"2026-08-08T17:36:45Z","type":"stable","version":"1.20.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.19.0","date":"2024-02-20T11:39:37Z","type":"stable","version":"1.19.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.18.0","date":"2024-01-14T15:23:18Z","type":"stable","version":"1.18.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.17.1","date":"2024-01-14T12:59:23Z","type":"stable","version":"1.17.1"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.17.0","date":"2024-01-11T16:18:52Z","type":"stable","version":"1.17.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.16.0","date":"2023-09-12T11:17:49Z","type":"stable","version":"1.16.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.15.1","date":"2023-04-03T14:27:05Z","type":"stable","version":"1.15.1"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.15.0","date":"2023-01-29T15:58:34Z","type":"stable","version":"1.15.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.14.0","date":"2023-01-27T11:56:16Z","type":"stable","version":"1.14.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.13.0","date":"2022-09-29T09:25:50Z","type":"stable","version":"1.13.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.12.0","date":"2022-02-25T09:14:47Z","type":"stable","version":"1.12.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.11.0","date":"2022-01-05T16:08:02Z","type":"stable","version":"1.11.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.10.1","date":"2021-10-27T12:27:38Z","type":"stable","version":"1.10.1"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.10.0","date":"2021-10-04T13:15:59Z","type":"stable","version":"1.10.0"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.9.6","date":"2021-08-26T10:47:01Z","type":"stable","version":"1.9.6"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.9.5","date":"2021-08-26T10:42:59Z","type":"stable","version":"1.9.5"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.9.3","date":"2021-08-24T08:30:17Z","type":"stable","version":"1.9.3"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.9.2","date":"2021-08-16T10:08:18Z","type":"stable","version":"1.9.2"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.9.1","date":"2021-05-31T06:17:26Z","type":"stable","version":"1.9.1"},{"url":"https://github.com/chaostoolkit/chaostoolkit/releases/tag/1.9.0","date":"2021-02-18T10:52:58Z","type":"stable","version":"1.9.0"}]` |
| security.disclosure_policy | yes | - |
| security.fedramp | yes | - |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.pci | yes | - |
| security.scorecard | - | 3.7 |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=chaostoolkit&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Chaos Engineering)

| Capability | AWS Fault Injection Service | Chaos Toolkit |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Fault injection scope | - | - |
| Blast radius control | - | - |
| Automated abort safety | - | - |
| Kubernetes native | - | - |
| Scheduling gameday orchestration | - | - |
| Observability integration | - | - |
| Experiment as code | - | - |
| Agent based | - | - |
| RBAC access control | - | - |
| Deployment model | - | - |
| SOC2 | - | - |
| Open source | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T16:49:04.009Z. "-" = undocumented, not absent.*