Cirrus Labs to join OpenAI shut down Circus CI on Monday, June 1, 2026
6 hours ago
- #Acquisition
- #Engineering Tooling
- #OpenAI
- Cirrus Labs, founded in 2017 to create tooling for engineers in the cloud computing era, is joining OpenAI's Agent Infrastructure team.
- The company innovated in CI/CD systems and virtualization, notably with Tart for Apple Silicon, and operated without outside capital.
- Existing products like Tart, Vetu, and Orchard will be relicensed under a permissive license with no fees; Cirrus CI will shut down on June 1, 2026.
- Cirrus Runners will not accept new customers but will support existing ones through their contracts.
- The move aims to extend Cirrus Labs' mission to build tooling for both human and agentic engineers, aligning with the agentic engineering era.