Jamba Large 1.7 is the latest model in the Jamba open family, offering improvements in grounding, instruction-following, and overall efficiency. Built on a hybrid SSM-Transformer architecture with a 256K context window, it delivers more acc…
Model details →AI21: Jamba Large 1.7 vs Nous: Hermes 4 405B
Nous: Hermes 4 405B wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with <think>...</think> traces or respond direc…
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | Nous: Hermes 4 405B | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 131K | 🏆 AI21: Jamba Large 1.7 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $1.00 | 🏆 Nous: Hermes 4 405B |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $3.00 | 🏆 Nous: Hermes 4 405B |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | — | 🏆 AI21: Jamba Large 1.7 |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Nous: Hermes 4 405B |
Frequently asked questions
Is AI21: Jamba Large 1.7 better than Nous: Hermes 4 405B?
Nous: Hermes 4 405B wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between AI21: Jamba Large 1.7 and Nous: Hermes 4 405B?
Input: $2.00 vs $1.00 per 1M tokens. Output: $8.00 vs $3.00 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and Nous: Hermes 4 405B support?
AI21: Jamba Large 1.7 supports up to 256K tokens. Nous: Hermes 4 405B supports up to 131K tokens.
Do both AI21: Jamba Large 1.7 and Nous: Hermes 4 405B support tool calling?
AI21: Jamba Large 1.7: yes. Nous: Hermes 4 405B: not advertised.