Model comparison
Nous: Hermes 4 405B vs Claude 4 Opus
Capability radar, value bars, and side-by-side posture.
Nous: Hermes 4 405B
Not scored
value score
Claude 4 Opus
95
value score
Nous: Hermes 4 405B ctx
—
Claude 4 Opus ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Opus95
Attribute tape
| Field | Nous: Hermes 4 405B | Claude 4 Opus |
|---|---|---|
| Developer | Nous Research | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | — |
| Price | — | $15/1M in · $75/1M out |
| Value score | — | 95 |
| Summary | Nous Research's flagship open-weight reasoning LLM built on the Llama 3.1 405B base, supporting hybrid direct-answer and chain-of-thought reasoning modes. Designed for complex tasks including math, code, STEM, structured output generation, and agentic workflows, with a user-steerable, low-refusal alignment posture. | Anthropic frontier Opus-class model. |