What it sells
Platform and marketplace for RL environments and AI data
Business model breakdown
Buyer: who owns the budget?
UnverifiedResearch/ML leads at labs and enterprises training or evaluating agents.
Workflow: what inputs become what output?
Define environments, tasks and graders with the HUD SDK; run agents across thousands of concurrent instances; QA agents audit traces for grader mistakes and reward hacking; train on resulting trajectories; DataVendor marketplace connects post-training suppliers with labs.
Economics: what it saves and how it charges
Usage pricing at $0.10 per environment hour on Cloud; Enterprise custom; marketplace for data suppliers.
Distribution: how it reaches customers
Open-source SDK (hud-python), self-serve free tier, enterprise sales, $100 credits for .edu emails.
Funding history and coverage
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| — | Y Combinator Winter 2025 | — | Y Combinator | ycombinator.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-12.