Environment Platforms
Platforms, hubs, and frameworks used to publish, build, train, or evaluate agents in RL environments. EnvIndex includes a platform here only when it also offers actual environments, an environment framework or hub, or hosted benchmark scenarios. Generic browsers, sandboxes, and virtual machines without an environment offering are outside the directory scope.
3 companies · 0 cataloged artifacts · as of 2026-08-16
| Name | Domains | Type / catalog | Location | Team | Funding | Raising |
|---|---|---|---|---|---|---|
| HUD Evals and RL environments platform for computer-use agents | Computer Use, Coding, Long Horizon, Environment Platforms, Custom Environments | Environment platform Catalog unknown | San Francisco, Singapore | 11-25 | $15M raised (YC W25, Exceptional Capital) | Unknown |
| Nous Research Open AI lab behind the Atropos RL environments framework | Machine Learning, Environment Platforms | Environment platform Catalog unknown | New York | 11-25 | Series A, $50M led by Paradigm (~$1B valuation, 2025) | Unknown |
| Prime Intellect Open superintelligence stack: compute, RL environments hub, and sandboxes | Machine Learning, Environment Platforms, Multi-Domain | Environment platform Catalog unknown | San Francisco | 26-50 | Series A, $130M at $1B valuation (2026); $150M+ total | Unknown |
Available environments, datasets & benchmarks
Source-backed catalog records connected to environment platforms.
No verified artifact records in this domain yet. This is a coverage gap, not evidence that no artifacts exist.