Google eyes $1.5B for Mechanize, a startup that raised $9.1M seed 103 days ago

Mechanize, a San Francisco startup that trains AI agents to write software, raised a $9.1 million seed round in April 2026 at a $500 million valuation. Roughly 103 days later, Google is in talks to pay more than $1.5 billion for its technology and team, according to Business Insider.

Backers include former GitHub chief Nat Friedman , Stripe co-founder Patrick Collison , and podcaster Dwarkesh Patel. At $9.1 million, the seed sits in the 99th percentile by size among 2,334 comparable seed rounds in the sector — an unusually large raise for an early-stage company.

Mechanize builds simulated work environments and evaluation systems that help AI labs train and test coding agents on realistic, multi-step tasks rather than benchmarks that are easy to game. Founded in April 2025 by three former Epoch AI researchers, its stated mission is to automate every job — starting with software, because code can be graded.

Rather than buy the roughly 35-person company outright, Google plans to hire some of its staff and take a non-exclusive licence to its technology, sources said. The recruits would work on evaluating and developing Google's models. Both companies declined to comment, and terms could still change.

The talks surfaced in a rough week for Google's AI. Chief scientist Jeff Dean left to start his own company and DeepMind boss Demis Hassabis stepped back, sending Google shares down around 4%. Google's flagship Gemini has slipped repeatedly on coding while OpenAI and Anthropic pulled developers onto Codex and Claude Code.

This is the third time in two years Google has run this move. In July 2025 it took Windsurf's founders and a licence for about $2.4 billion, installing chief executive Varun Mohan to run its Antigravity coding platform. In 2024 it rehired Character AI co-founder Noam Shazeer, who has since left for OpenAI.

The structure sidesteps the antitrust scrutiny a full takeover attracts, but regulators have said they will examine deals meant to avoid merger review. The $1.5 billion figure also covers the whole arrangement — licensing fees, salaries, founders, and investors — not a clean purchase price.

The fight has moved from the model to the tools around it. Mechanize pushes Google's hiring strategy further down the supply chain — Windsurf gave it a product developers use, Mechanize would give it the machinery to train the models underneath. Whether $1.5 billion sets a new floor for the reinforcement-learning environment sector, or is simply the price of being first, remains unclear.