Celesto pitches a one-line GitHub Actions swap claiming ~90% cheaper CI minutes at agent scale
aniketmaurya · x · 2026-10-26
Celesto launched a drop-in replacement for GitHub Actions runners: change one line (runs-on: [self-hosted, celesto]) and the company claims CI costs drop 2x–22x, nearly 90% cheaper per minute than GitHub Actions and 83% cheaper than Blacksmith, with hundreds of users migrating in the past week. Features include Docker-preinstalled runners with up to 25GB cache, agent sandboxes booting in under 2 seconds, and a full cloud computer (shell, browser, desktop) per long-running agent. Backed by Grayscale Ventures.
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