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 Google: Gemini 3.1 Pro Preview
Google: Gemini 3.1 Pro Preview wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation …
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | Google: Gemini 3.1 Pro Preview | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 1.0M | 🏆 Google: Gemini 3.1 Pro Preview |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $2.00 | Tie |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $12.00 | 🏆 AI21: Jamba Large 1.7 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Google: Gemini 3.1 Pro Preview |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Google: Gemini 3.1 Pro Preview |
Frequently asked questions
Is AI21: Jamba Large 1.7 better than Google: Gemini 3.1 Pro Preview?
Google: Gemini 3.1 Pro Preview 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 Google: Gemini 3.1 Pro Preview?
Input: $2.00 vs $2.00 per 1M tokens. Output: $8.00 vs $12.00 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and Google: Gemini 3.1 Pro Preview support?
AI21: Jamba Large 1.7 supports up to 256K tokens. Google: Gemini 3.1 Pro Preview supports up to 1.0M tokens.
Do both AI21: Jamba Large 1.7 and Google: Gemini 3.1 Pro Preview support tool calling?
AI21: Jamba Large 1.7: yes. Google: Gemini 3.1 Pro Preview: yes.