Nous Research

Nous Research develops open source language models and autonomous agent systems designed for developers and researchers building AI applications. The company advances the open source AI movement by releasing models as open weights on HuggingFace, eliminating vendor lock-in and enabling full control over data and deployment.

Highlights

• Hermes family of language models available as fully open weights on HuggingFace
• Hermes Agent: MIT-licensed autonomous agent framework with built-in learning loops and persistent memory
• Nous Portal API offering a free tier plus flexible pay-as-you-go credit pricing
• Self-hostable on any infrastructure from single VPS to GPU clusters to serverless platforms
• Advanced features including function calling, structured output, and multi-turn reasoning
• High instruction-following reliability with minimal refusals in latest model versions

Nous Research serves developers and teams who need production-grade AI inference without cloud dependencies. Open source models are free to use and fine-tune; Nous Portal API starts with a free tier for evaluation and scales with usage-based credits.