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...
Model details →AI21: Jamba Large 1.7 vs OpenRouter: Fusion
OpenRouter: Fusion wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Fusion turns your prompt into a small multi-model deliberation. A panel of expert models (see below) analyzes your prompt in parallel with web search and web fetch enabled, then a...
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | OpenRouter: Fusion | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 1M | 🏆 OpenRouter: Fusion |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $-1000000.00 | 🏆 OpenRouter: Fusion |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $-1000000.00 | 🏆 OpenRouter: Fusion |
| 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. | — | — | Tie |
Frequently asked questions
Is AI21: Jamba Large 1.7 better than OpenRouter: Fusion?
OpenRouter: Fusion 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 OpenRouter: Fusion?
Input: $2.00 vs $-1000000.00 per 1M tokens. Output: $8.00 vs $-1000000.00 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and OpenRouter: Fusion support?
AI21: Jamba Large 1.7 supports up to 256K tokens. OpenRouter: Fusion supports up to 1M tokens.
Do both AI21: Jamba Large 1.7 and OpenRouter: Fusion support tool calling?
AI21: Jamba Large 1.7: yes. OpenRouter: Fusion: not advertised.