Nous Research, open weights
Hermes 4 405B
Hermes 4 405B by Nous Research has 2 published benchmark results on Noometry, not yet enough to be ranked. API pricing starts at $1 per million input tokens and $3 per million output tokens, with a 131K-token context window.
Last verified
Specifications
- Noometry rank
- Unranked
- Index score
- Not ranked
- Evidence
- Sparse 2 results
- Provider
- Nous Research
- Released
- Unknown
- Weights
- Open weights
- Reasoning
- Yes
- Context window
- 131K
- Max output
- 118K
- Input price
- $1 / M
- Output price
- $3 / M
- Blended price
- $1.50 / M
- Output speed
- 23 tokens/s Kagi
- Value
- Not ranked
- Knowledge cutoff
- Unknown
- Input
- text
- Hugging Face
- NousResearch/Hermes-4-405B
Category scores
Each category score combines every public result we have in that category.
- Reasoning 26.1
- Writing & Preference 52.9
| Category | Score | Rank | Results |
|---|---|---|---|
| Reasoning | 26.1 | — | 1 |
| Writing & Preference | 52.9 | — | 1 |
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Benchmark results
Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.
Reasoning
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| Kagi LLM Benchmark | 55.8% | #50 of 99, top 51% | Kagi LLM Benchmark | ||
| Kagi LLM Benchmark | 30.1% | Kagi LLM Benchmark |
Writing & Preference
| Benchmark | Score | Position | Setting | Source | Date |
|---|---|---|---|---|---|
| EQ-Bench Creative Writing | 1421 | #66 of 115, top 58% | EQ-Bench |
API pricing by provider
| Route | Input $/M | Output $/M | Cached input $/M | Checked |
|---|---|---|---|---|
| openrouter | $1 | $3 | — | 2026-10-10 |
Compare Hermes 4 405B
- Hermes 4 405B vs GPT-6 Astra
- Hermes 4 405B vs Claude Fable 5.1
- Hermes 4 405B vs Claude Opus 5.5
- Hermes 4 405B vs Claude Opus 5
- Hermes 4 405B vs Claude Fable 5
- Hermes 4 405B vs GPT-6.1 Sol
- Hermes 4 405B vs Gemini 3.8 Flash
- Hermes 4 405B vs Kimi K3
- Hermes 4 405B vs Grok 4.6
- Hermes 4 405B vs Qwen3.8 Max
- Hermes 4 405B vs GLM-5.3
- Hermes 4 405B vs Muse Spark 1.3
- Hermes 4 405B vs DeepSeek V4 Pro
- Hermes 4 405B vs MiMo-V2.6-Pro
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Frequently asked questions
How good is Hermes 4 405B?
Hermes 4 405B by Nous Research has 2 published benchmark results on Noometry, not yet enough to be ranked. API pricing starts at $1 per million input tokens and $3 per million output tokens, with a 131K-token context window.
How much does Hermes 4 405B cost?
Hermes 4 405B costs $1 per million input tokens and $3 per million output tokens on openrouter.
What is Hermes 4 405B's context window?
Hermes 4 405B accepts up to 131K tokens of input and can write up to 118K tokens in one response.
Is Hermes 4 405B open source?
Yes. Hermes 4 405B's weights are downloadable from Hugging Face (NousResearch/Hermes-4-405B); check the license for commercial terms.
How fast is Hermes 4 405B?
Hermes 4 405B generated about 23 output tokens per second in the Kagi LLM Benchmark's timed runs. Speed varies by provider, load and reasoning effort.