{"slug":"nous-research","name":"Nous Research","website":"https://nousresearch.com","tagline":"Open AI lab behind the Atropos RL environments framework","description":"Nous Research is an open-source AI lab known for the Hermes model family and Atropos, its open rollout framework for LLM reinforcement learning environments spanning code execution, tool calling, and multimodal tasks. It also builds Psyche for distributed training.","domains":["machine-learning","agents-infrastructure"],"locations":["New York"],"founders":[{"name":"Karan Malhotra","xHandle":"karan4d"},{"name":"Jeffrey Quesnelle","xHandle":"theemozilla"},{"name":"Teknium","xHandle":"Teknium1"}],"teamSize":"11-25","funding":"Series A, $50M led by Paradigm (~$1B valuation, 2025)","raising":null,"founded":2023,"notable":"Atropos open-source RL environments framework","entityType":"Environment platform","canonicalUrl":"https://envindex.com/startup/nous-research","research":null,"sources":[],"capabilityCatalog":{"startupSlug":"nous-research","reviewedAt":"2026-08-16","status":"cataloged","items":[{"name":"Atropos","kind":"Product capability","summary":"Open-source framework and environment hub for reinforcement-learning environments.","access":["Open source","Public / Open"],"sourceUrl":"https://github.com/NousResearch/atropos","sourceLabel":"Atropos","verificationStatus":"company-reported","lastVerified":"2026-08-16"}]},"artifacts":[],"caveat":"Legacy profile awaiting claim-level source migration"}