browser agent

Perplexity Comet alternatives

Perplexity Comet pioneered the agentic-browser category, but it's no longer alone. ChatGPT Atlas is OpenAI's first-party answer; OpenAI Operator is the remote-browser variant; MultiOn offers an API-first alternative for developers; Browser Use is the OSS path. The right choice depends on whether you want a daily-driver browser, a remote agent for transactional work, or a developer-grade automation tool.

Original tool

Perplexity Comet

An AI-first browser that drives web tasks for you.

Bundled with Perplexity Pro ($20/mo) and Max plans.

Top alternatives

Each entry includes the reason it's on this list — the specific trade-off versus Perplexity Comet.

ChatGPT Atlas

Browser agent

OpenAI's first-party AI browser, built around ChatGPT and Operator.

The OpenAI-ecosystem alternative. First-party tie-in to ChatGPT memory, custom GPTs, and Operator. Less mature than Comet on research workflows.

Free with any ChatGPT account; agent mode requires Plus/Pro.

OpenAI Operator

Browser agent

ChatGPT's web-using agent that takes browser actions on your behalf.

The remote-browser alternative. Better suited for hands-off transactional tasks. Pro-tier pricing keeps it pro-prosumer.

Included with ChatGPT Pro ($200/mo); broader rollout in progress.

MultiOn

Browser agent

Personal AI agent that takes browser actions through an API or extension.

The developer-API alternative. If you want to build on a browser-using agent rather than just use one, MultiOn exposes the API surface.

Free tier; Pro $20/mo; API priced per session.

Browser Use

Browser agent

Open-source Python library for putting any LLM behind a real browser.

The OSS alternative. Self-host any LLM behind a Playwright-driven browser. Full control, real engineering investment.

Free OSS; managed cloud tier in beta.

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