# Nous Research Models via Hanzo AI — 4 models > Access all 4 Nous Research models through Hanzo's OpenAI-compatible API. Single API key, unified billing, no rate limit juggling. [Models](https://hanzo.ai/models)/Nous Research # Nous Research Models via Hanzo AI 4 models available Access all 4 Nous Research models through Hanzo's OpenAI-compatible API. Single API key, unified billing, no rate limit juggling. [Get API Access](https://hanzo.ai/signup)[API Docs](https://docs.hanzo.ai) [Nous: Hermes 3 405B Instruct131KHermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the...text](https://hanzo.ai/models/nousresearch/hermes-3-llama-3.1-405b)[Nous: Hermes 3 70B Instruct131KHermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the...text](https://hanzo.ai/models/nousresearch/hermes-3-llama-3.1-70b)[Nous: Hermes 4 405B131KHermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with...text](https://hanzo.ai/models/nousresearch/hermes-4-405b)[Nous: Hermes 4 70B131KHermes 4 70B is a hybrid reasoning model from Nous Research, built on Meta-Llama-3.1-70B. It introduces the same hybrid mode as the larger 405B release, allowing the model to either...text](https://hanzo.ai/models/nousresearch/hermes-4-70b) ## Use Nous Research models via Hanzo One API key. Unified billing. OpenAI-compatible. Works with every existing SDK. [Start Free](https://hanzo.ai/signup)[Browse All Models](https://hanzo.ai/models)