GPT-5.1 vs Hermes 3 405B Instruct
OpenAI vs Nous Research — benchmarks, pricing, and capabilities side by side.
- •Hermes 3 405B Instruct is cheaper ($1.00 vs $1.25 per 1M input)
- •GPT-5.1 has a larger context window (400K)
| GPT-5.1 | Hermes 3 405B Instruct | |
|---|---|---|
| Intelligence index | 89 | — |
| Developer | OpenAI | Nous Research |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 400,000 tokens | 131,072 tokens |
| Input price | $1.25 / 1M | $1.00 / 1M |
| Output price | $10.00 / 1M | $1.00 / 1M |
| Speed | 115 tok/s | — |
| Released | November 12, 2025 | August 16, 2024 |
| Parameters | — | — |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |