Browser Use launches BU to take on Meta's $2B Manus

Meta just dropped $2 billion to acquire AI agent startup Manus, and the open-source community is already coming for its lunch.

Browser Use announced the beta launch of BU, a general-purpose web agent platform. It didn't mince words: Browser Use framed BU as a faster, cheaper replacement for Manus, dismissing the newly acquired giant as little more than an overpriced model wrapper.

Breaking out of the browser sandbox

Browser Use initially built its reputation as a lightweight open-source Python library that let LLMs steer browsers. BU Beta turns that script into a full-blown automation platform.

You give it an instruction in plain English, like asking it to scrape property listings from Zillow, and it puts models like GPT-4 or Claude to work. It figures out navigation, handles logins, and extracts data autonomously.

Crucially, BU does not stay trapped in a browser tab. Unlike traditional web agents, it gets full local computer access.

That means it can bridge web actions with local machine workflows, downloading files directly, executing desktop scripts, and managing files on disk without human intervention.

To keep websites from immediately blocking automated traffic, BU also packs a stealth infrastructure. It mimics human interactions while handling proxies, cookies, and sessions behind the scenes.

Faster, cheaper, and a public roast

To back up its claims, Browser Use released benchmark numbers aimed directly at traditional solutions.

Task accuracy reportedly jumped from 71.8% to 82%, while task completion times dropped from 123 seconds to just 33.4 seconds. The most aggressive shift is the price tag: execution costs plummeted from 39.2 cents to just 1.9 cents per run.

Browser Use also highlighted a side-by-side demo on Zillow. While Manus got stuck on the homepage due to dynamic anti-bot hurdles, BU bypassed the friction and pulled the real estate listings without a hitch.

Before Meta scooped it up in late December, Manus was flying high with $125 million in ARR and praise for its KV-cache optimizations. But Browser Use is betting that open-source architecture can outpace proprietary wrappers every time.

While the core library remains free on GitHub, users looking to try the beta platform can sign up at bu.app.

Why it matters

For power users and developers tired of maintaining fragile web scrapers, BU turns tedious data extraction into a two-cent prompt. If you regularly pull leads or monitor competitor sites, running complex workflows in 30 seconds for under two cents makes daily automation an absolute no-brainer.

For the AI industry, this challenge exposes how fragile closed-source defensibility might be. Meta spent $2 billion on Manus barely weeks ago, yet open-source alternatives are already delivering comparable workflows at a tiny fraction of the cost. The economic moats around commercial agent harnesses are shrinking rapidly.

We think Browser Use played its cards brilliantly by using dramatic cost reductions to grab attention. However, granting an AI agent full access to your local computer remains a serious security gamble. Until reliable guardrails are proven in production, mainstream enterprise adoption will proceed with caution.