Today, we're excited to introduce Composer — the world's most powerful browser agent.
Composer is capable of working autonomously for several hours on complex web tasks in sales, recruiting, research, and more, all within your personal browser sessions.
Composer currently ranks #1 on every single major web benchmark.[] And when evaluated head-to-head on real knowledge work tasks, Composer outclasses Manus, ChatGPT Atlas, Claude for Chrome, and Perplexity Comet.[]
Composer's capabilities stem from a specialized harness we've spent the past few months architecting. It leverages several key strengths of the latest frontier models — and a few architectural choices that let us push them further.
One of those strengths is task delegation, which the browser environment is uniquely suited for. Sessions can be easily replicated across dozens of windows, enabling massively parallel subagents to efficiently complete tasks like research and prospecting.
Composer can also delegate synchronous tasks, such as navigating menus or filling out forms, to smaller, faster models. These optimizations enable our agent to act as an orchestrator, intelligently managing its own context over long-horizon tasks.
Finally, Composer operates on a virtual filesystem in the cloud — a second brain for tracking tasks, running scripts, and maintaining memory across long sessions. And because files are shared across all subagents, it doubles as a coordination layer, keeping agents aligned and avoiding redundant work.
This is just the beginning. Today, Composer is available in alpha, and we're excited to see what it can do for you!