Grok 4.3 vs Hermes 4 405B
xAI vs Nous Research — benchmarks, pricing, and capabilities side by side.
- •Hermes 4 405B is cheaper ($1.00 vs $1.25 per 1M input)
- •Grok 4.3 has a larger context window (1M)
| Grok 4.3 | Hermes 4 405B | |
|---|---|---|
| Intelligence index | 90.1 | — |
| Developer | xAI | Nous Research |
| Type | LLM | LLM |
| Access | API only | Open weights |
| Context window | 1,000,000 tokens | 131,072 tokens |
| Input price | $1.25 / 1M | $1.00 / 1M |
| Output price | $2.50 / 1M | $3.00 / 1M |
| Speed | 88 tok/s | — |
| Released | May 6, 2026 | August 26, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |