Using Hermes-4-70B on OpenRouter
Implementation guide · Hermes 4 · Nous Research
ServerlessOpen Weights
Quick Start
- 1
- 2Use the OpenRouter SDK or REST API to call
nousresearch/hermes-4-70b— see the documentation for request format. - 3
Code Examples
About OpenRouter
OpenRouter provides a unified interface for Large Language Models with better pricing, improved uptime, and no subscription requirements. Route across providers for cost optimization and reliability.
OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Pricing on OpenRouter
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.13 |
| Output tokens | $0.40 |
Capabilities
Reasoning
About Hermes-4-70B
Hermes 4's 70B hosted variant on Nous Portal. The portal describes it as a hybrid-mode reasoning model that balances scale and size while staying fast and cost effective for complex reasoning tasks.
Model Specs
Released2025-09-22
Parameters70B
Context128k
Knowledge cutoff2023-12