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 Body Builder (beta)
AI21: Jamba Large 1.7 and Body Builder (beta) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
Transform your natural language requests into structured OpenRouter API request objects. Describe what you want to accomplish with AI models, and Body Builder will construct the appropriate API calls. Example: "count to 10 using gemini and …
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | Body Builder (beta) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 128K | 🏆 AI21: Jamba Large 1.7 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $-1000000.00 | 🏆 Body Builder (beta) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $-1000000.00 | 🏆 Body Builder (beta) |
| 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 Body Builder (beta)?
AI21: Jamba Large 1.7 and Body Builder (beta) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between AI21: Jamba Large 1.7 and Body Builder (beta)?
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 Body Builder (beta) support?
AI21: Jamba Large 1.7 supports up to 256K tokens. Body Builder (beta) supports up to 128K tokens.
Do both AI21: Jamba Large 1.7 and Body Builder (beta) support tool calling?
AI21: Jamba Large 1.7: yes. Body Builder (beta): not advertised.