Nous: Hermes 4 70B
By Nousresearch
Released: 2025-08-26
Nousresearch Hermes 4 70B, developed by Nous Research, features 70B parameters and 131k-token context window. Hermes 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 respond directly or generate explicit <think>...</think> reasoning traces before answering. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#enable-reasoning-with-default-config) This 70B variant is trained with the expanded post-training corpus (~60B tokens) emphasizing verified reasoning data, leading to improvements in mathematics, coding, STEM, logic, and structured outputs while maintaining general assistant performance. It supports JSON mode, schema adherence, function calling, and tool use, and is designed for greater steerability with reduced refusal rates. Available at $0.11/1M tokens.
Visit Nous: Hermes 4 70BAI-Powered
Leverages advanced AI technology to deliver cutting-edge capabilities and results.
Fast & Efficient
Optimized performance ensures quick results without compromising on quality.
Purpose-Built
Specifically designed for llms tasks and workflows.
Nousresearch Model Timeline
131k tokens context
131k tokens context
33k tokens context
66k tokens context
131k tokens context
131k tokens context
8k tokens context
Specifications
AI Evaluation
Combines language understanding with search capabilities. Excels at finding and synthesizing information from various sources.
Pros
- Competitive pricing ($0.11/1M)
- 131k token context window
- Large-scale 70B architecture
- Strong code generation and debugging
Cons
- May lack creative flair
- API integration required
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