Open AI research lab: Hermes open models and agent harness.
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What is Nous Research?
The internet's own AI
Nous Research is a pioneer in open AI training and research — creator of the Hermes open-source model family and Hermes Agent.
Hermes Agent: open-source AI agent harness (terminal TUI / desktop / cloud) that grows with you — learning loop, memory, and skill systems; supports 200+ models and 60+ built-in tools. Nous Portal: cloud platform and subscription hub for model access, cloud agent deployment, billing, and team management. Hermes open-source models: Hermes / Hermès 3 series, plus 200+ third-party models via Portal. Research & releases: open AI training research, papers, and model announcements. OpenAI-compatible API, developer docs, and a skills/plugin marketplace.
Pricing (Nous Portal, monthly): FREE $0 (free models, standard rate limits, $0 monthly credit); PLUS $20/month ($22 credit/month, $10 rollover cap); SUPER $100/month ($110 credit/month, $50 rollover cap); ULTRA $200/month ($220 credit/month, $100 rollover cap). Paid tiers include 200+ models, hosted tool usage, high rate limits. Hermes Agent itself is free open source (MIT) — you only pay for your chosen model API usage. See nousresearch.com and hermes-agent.nousresearch.com for details.
Platforms and languages
Nous Research Availability
Platforms
Languages
Capabilities
Nous Research Key Features
Hermes agent
Open-source agent harness that learns and grows with you; 200+ models, 60+ tools.
Open models
Hermes / Hermès 3 open models plus 200+ third-party models via Portal.
Nous portal
Cloud model access, agent deployment, billing, and team management.
API
OpenAI-compatible interface for developers and integrations.
Model downloads
Weights via GitHub and Hugging Face.
Research
Open AI training research, papers, and model releases.
Best for
Who uses Nous Research?
Developers and AI researchers
Self-host open models and AI agents with full control
Teams and organizations
Customizable inference with open weights and cloud API
Plans and access
Nous Research Pricing
Freemium
Free tier; Portal plans from $20/mo. Hermes Agent free (MIT).
Common questions
Nous Research FAQs
Which models does Hermes Agent support?
Any OpenAI-compatible LLM provider, plus local models running offline.
What about data privacy?
API calls go only to the model provider you configure; Hermes collects no telemetry or usage data.
How much does it cost?
Hermes Agent is free open source (MIT); you pay only for your chosen model API usage.
Which platforms are supported?
Linux, macOS, WSL2, native Windows, Nix/NixOS, Android (Termux).
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