Author's Description
Hermes 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...
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
Nous: Hermes 3 405B Instruct demonstrates competitive response times, ranking in the 54th percentile across eight benchmarks, and offers competitive pricing, placing in the 51st percentile. The model exhibits exceptional reliability with a 100% success rate across all benchmarks, indicating consistent and usable responses without technical failures. In terms of performance across categories, Hermes 3 405B shows strong capabilities in Ethics and Email Classification, achieving perfect 100% accuracy in both, and is noted as the most accurate model at its price point and speed for these tasks. It also performs well in Hallucinations (96.0% accuracy) and General Knowledge (98.5% accuracy), indicating a robust understanding of factual information and an appropriate acknowledgment of uncertainty. Its Instruction Following is solid at 63.0% accuracy, placing it in the 63rd percentile. While its Coding accuracy is respectable at 85.0%, its Mathematics performance is a notable weakness, with 77.0% accuracy, placing it in the 31st percentile. Reasoning also presents an area for potential improvement at 70.0% accuracy. Overall, Hermes 3 405B is a generalist model with particular strengths in ethical reasoning, classification, and general factual recall, while mathematics remains an area for development.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $1 |
| Completion | $1 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
DeepInfra
|
DeepInfra | nousresearch/hermes-3-llama-3.1-405b | 131K | $1 / 1M tokens | $1 / 1M tokens |
|
Lambda
|
Lambda | nousresearch/hermes-3-llama-3.1-405b | 131K | $1 / 1M tokens | $1 / 1M tokens |
|
Nebius
|
Nebius | nousresearch/hermes-3-llama-3.1-405b | 131K | $1 / 1M tokens | $1 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by nousresearch
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| Nous: Hermes 4 70B | Aug 26, 2025 | 70B | 131K |
Text input
Text output
|
★★★★ | ★★ | $$ |
| Nous: Hermes 4 405B | Aug 26, 2025 | 405B | 131K |
Text input
Text output
|
★★★★ | ★★★ | $$$$ |
| Nous: DeepHermes 3 Mistral 24B Preview Unavailable | May 09, 2025 | 24B | 32K |
Text input
Text output
|
★★★★ | ★★★ | $$ |
| Nous: DeepHermes 3 Llama 3 8B Preview Unavailable | Feb 27, 2025 | 8B | 131K |
Text input
Text output
|
— | — | $ |
| Nous: Hermes 3 70B Instruct | Aug 17, 2024 | 70B | 12K |
Text input
Text output
|
★★★★ | ★★★ | $$ |
| NousResearch: Hermes 2 Pro - Llama-3 8B | May 26, 2024 | 8B | 8K |
Text input
Text output
|
★★★★★ | ★★ | $ |
| Nous: Hermes 2 Mixtral 8x7B DPO Unavailable | Jan 15, 2024 | 56B | 32K |
Text input
Text output
|
★★★ | ★ | $$$ |