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hud

Hiring

hud is a YC Winter 2025 (W25) company. Based in San Francisco, CA, USA. Team of 5.

  • Artificial Intelligence
  • Reinforcement Learning

About hud

GPAgent's own fund-neutral profile, written from public information. Updated Oct 5, 2026.

Summary

hud builds evaluation and reinforcement learning environment infrastructure for computer use agents, the AI systems that autonomously browse the web. Its customers are frontier AI labs that need to measure and improve agent reliability across a wide range of real-world tasks. hud replaces ad hoc, internally built eval tooling with a structured framework purpose-built for web-browsing agents.

Go-to-market

Frontier AI labs are the direct buyers, engaged through a sales-led motion built on close working relationships with those teams.

From the Y Combinator listing

How hud describes itself in Y Combinator's public directory. Original listing (opens in a new tab)

Platform for building RL environments and evals

HUD (YC W25) is developing agentic evals and RL environments for Computer Use Agents (CUAs) that browse the web for frontier AI labs. Our CUA Evals framework is the first comprehensive evaluation tool for CUAs. People don't actually know if AI agents are working reliably. To make AI agents work in the real world, we need detailed evals for a huge range of tasks. We're backed by Y Combinator, and work closely with frontier AI labs to provide agent evaluation and training infrastructure at scale.

Facts

Industry
B2B / B2B -> Engineering, Product and Design
Location
San Francisco, CA, USA
Team size
5
Status
Active
Stage
Early

Founders (3)

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