Environment SDK
Open-source Python SDK for defining evals, environments, and verifiers; runs locally with `hud dev`.
What it does
Open-source Python SDK for defining evals, environments, and verifiers; runs locally with `hud dev`.
- Building RL environments
- Training specialized agents
- Evaluating models
- Delivering post-training data to labs
- Category
- Developer tools and platforms
- Built for
- Technology and software
- Users
- Frontier labs, Model builders, RL environment / task dataset builders, Teams evaluating frontier model capabilities
- Public API
- Not offered
- Deployment
- Self-hosted
Not yet disclosed: platforms, languages and support channels.
Pricing
- Free plan$0
- Usage-based$0.10
- EnterpriseCustom
- Quoted by their sales team
Free trial on paid plans
Prices as published by HUD AI, checked Oct 2026.
Security and compliance
As reported by HUD AI. Ask for audit reports before you buy.
- SOC 2Compliant
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