Nous: Hermes 4 405B
Nous: Hermes 4 405B is a community fine-tune. Behaviour and benchmarks track the upstream base model the fine-tune was trained from. Available via nousresearch. 131,072-token context. Mid-tier pricing. Inherits weights from an upstream open-weights base; benchmarks track the base model unless the fine-tuner publishes their own.
Nous: Hermes 4 405B is a frontier AI model from nousresearch. It costs $1.000 per million input tokens and $3.000 per million output tokens (blended $1.600/M), with a 131,072-token context window.
- Persona/tuning beyond the base model
- Persona/style adherence beyond the base model
- Specific domain (RP, instruction, etc.) tuning
- Inherits base-model capability
- Roleplay and creative chat
- Domain-specific assistants
- Custom persona deployments
Benchmarks
More from nousresearch
See all 3 →Frequently asked questions
How much does Nous: Hermes 4 405B cost?
Nous: Hermes 4 405B costs $1.000 per million input tokens and $3.000 per million output tokens, for a blended reference rate of $1.600 per million tokens.
What is Nous: Hermes 4 405B's context window?
Nous: Hermes 4 405B supports up to 131,072 tokens of context in a single request.
What is Nous: Hermes 4 405B best for?
Nous: Hermes 4 405B is well suited to Persona/tuning beyond the base model, Persona/style adherence beyond the base model and Specific domain (RP, instruction, etc.) tuning.
Who makes Nous: Hermes 4 405B?
Nous: Hermes 4 405B is developed and served by nousresearch.