Agent Stack Directory

Compare browsers & computer use

Kernel vs Stagehand

Two browsers & computer use tools for AI agents, side by side. Facts come from each tool's own site.

Kernel

kernel.sh

Browser infrastructure for web agents with reusable sessions and fast spin-up.

New
Visit Kernel

Stagehand

stagehand.dev

SDK for browser agents with a Playwright-style API and self-healing selectors.

Open sourceNew
Visit Stagehand
Kernel compared with Stagehand
KernelStagehand
What it doesBrowser infrastructure for web agents with reusable sessions and fast spin-up.SDK for browser agents with a Playwright-style API and self-healing selectors.
In their wordsKERNEL: browser infrastructure for web agents and automationsThe SDK for browser agents | Stagehand
Open sourceNoYes
Websitekernel.shstagehand.dev
Link checked2026-10-162026-10-16

More options:Alternatives to KernelAlternatives to StagehandGuide: Best cloud browsers for AI agents

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