Comet Lab Atlas

An open-source framework that adds natural-language actions on top of Playwright.

Stagehand, from the Browserbase team, lets you mix precise Playwright code with natural-language instructions — "click the login button", "extract the prices" — choosing determinism or AI per step.

That blend is the point: script the stable parts, and hand the brittle, layout-dependent parts to the model, in one codebase.

Where it's ideally used

A fit when a browser task is mostly stable but has a few fragile steps better handled by natural language than selectors.

Where it doesn't fit

Unnecessary when every step is stable enough to script directly in plain Playwright.