Chunk by CircleCI
By CircleCI. Category: Test maintenance and self-healing. Homepage
CircleCI's documentation describes Chunk as an AI assistant that helps with CI/CD tasks through a natural-language chat interface and scheduled tasks. Its documented tasks include fixing flaky tests, extending test coverage, fixing bugs and optimizing build configurations. For flaky tests, Chunk detects them, generates fixes, validates the fixes through repeated runs in an isolated environment and opens pull requests. It requires GitHub organizations with the CircleCI GitHub App. The Chunk CLI installs skills and validation hooks for coding agents such as Claude Code, Cursor and VS Code Copilot. The docs state that Chunk is in beta.
Description written from the vendor's documentation.
Status
Status: Active
In beta: 'Chunk by CircleCI is currently in beta.'
Facts
| Fact | Value | Evidence | Source | Verified on |
|---|---|---|---|---|
| Status | Active | Documented | circleci.com | |
| Founded | Not documented | Not documented | None found | |
| Headquarters | Not documented | Not documented | None found | |
| AI capabilities | Documented | circleci.com | ||
| Test creation | Not documented | Not documented | None found | |
| Test output | Not documented | Not documented | None found | |
| Surfaces | Not documented | Not documented | None found | |
| Hosting | Documented | circleci.com | ||
| Pricing model | Documented | circleci.com | ||
| Free tier | Yes | Documented | circleci.com | |
| CI integrations | Documented | circleci.com | ||
| Self-healing | Documented | Documented | circleci.com | |
| Agent integration | Chunk CLI installs agent skills (chunk-review, chunk-sidecar, chunk-testing-gaps, debug-ci-failures) and validation hooks for AI coding agents such as Claude Code, Cursor and VS Code Copilot | Documented | circleci.com |
Published prices
No prices are published.
Vendor-stated, verbatim
What CircleCI says about its product, quoted as published and not confirmed in documentation.
“Chunk sidecars run alongside agents before any commit or push. Auto-detects your stack, fires validation hooks when the agent pauses, and returns 30x faster than your CI pipeline.”
“5x fewer tokens spent. 30x more compute efficient than a full pipeline run.”
“Sign up, install the chunk CLI, and one command sets up your environment, wires agent hooks, and gets validation running in under five minutes.”
Alternatives
Tools in the same category (Test maintenance and self-healing), ordered by the number of shared creation and surface values, then by name. Each line lists documented facts that differ from Chunk by CircleCI.
- BrowserStack AI: documents output Mixed; creation by natural language, recording; hosting self-hosted; no free tier
- CloudQA: documents output Mixed; creation by recording
- CodeceptJS: documents output Proprietary runner; creation by code generation; hosting self-hosted
- Healenium: documents output Standard Selenium; hosting self-hosted
- Ogoron: documents output Standard Playwright; creation by code generation, prompt to test; hosting hybrid
- OpenText Functional Testing: documents output Proprietary runner; creation by recording; hosting self-hosted; status renamed
Questions
Is this page a review of Chunk by CircleCI?
No. This page is a fact sheet. Each fact shows its evidence level, its source and the date it was checked. We do not rate or rank tools.
Does Chunk by CircleCI have a free tier?
Yes. Chunk by CircleCI has a free tier. This is documented, checked on 2026-09-24.
What test output does Chunk by CircleCI produce?
The test output format is not documented as of 2026-09-24.
Is Chunk by CircleCI still available?
Status: Active, checked on 2026-09-24.
Sources
Spotted an outdated or wrong fact about Chunk by CircleCI? Send the source and we apply it at the next monthly update.