Nous: Hermes 4 70B

Text input Text output
Author's Description

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...

Key Specifications
Cost
$$
Context
131K
Parameters
70B
Released
Aug 26, 2025
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Temperature Include Reasoning Reasoning Presence Penalty Max Tokens Response Format Frequency Penalty Top P
Features

This model supports the following features:

Reasoning Response Format
Performance Summary

Nous: Hermes 4 70B, built on Meta-Llama-3.1-70B, demonstrates strong overall performance with a focus on hybrid reasoning. It performs among the fastest models, ranking in the 72nd percentile for speed, and offers highly cost-effective solutions, placing in the 76th percentile for price. The model exhibits exceptional reliability with a 95% success rate, indicating consistent and usable responses. In terms of specific benchmarks, Hermes 4 70B excels in acknowledging uncertainty, achieving 98.0% accuracy in Hallucinations (73rd percentile), and demonstrates robust Email Classification with 98.0% accuracy (68th percentile). Its Ethics performance is also very strong at 99.0% accuracy (58th percentile). Key strengths lie in its ability to avoid hallucination and its high reliability. However, the model shows notable weaknesses in complex domains such as Coding (55.0% accuracy, 21st percentile), Mathematics (69.0% accuracy, 27th percentile), and Reasoning (54.0% accuracy, 32nd percentile), despite its training emphasis on verified reasoning data. General Knowledge and Instruction Following also present areas for improvement, with accuracies around the 50th percentile. The model's support for JSON mode, schema adherence, and function calling, coupled with greater steerability, enhances its utility for structured tasks.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $0.13
Completion $0.4

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
Nebius
Nebius | nousresearch/hermes-4-70b 131K $0.13 / 1M tokens $0.4 / 1M tokens
Chutes
Chutes | nousresearch/hermes-4-70b 131K $0.13 / 1M tokens $0.4 / 1M tokens
Chutes
Chutes | nousresearch/hermes-4-70b 131K $0.13 / 1M tokens $0.4 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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