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 DeepSeek Reasoner (legacy id)
AI21: Jamba Large 1.7 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Legacy compatibility id mapping to DeepSeek V4 Flash thinking mode (per DeepSeek pricing notes).
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | DeepSeek Reasoner (legacy id) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 1M | 🏆 DeepSeek Reasoner (legacy id) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | Custom | 🏆 AI21: Jamba Large 1.7 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | Custom | 🏆 AI21: Jamba Large 1.7 |
| 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 DeepSeek Reasoner (legacy id)?
AI21: Jamba Large 1.7 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 DeepSeek Reasoner (legacy id)?
Input: $2.00 vs Custom per 1M tokens. Output: $8.00 vs Custom per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and DeepSeek Reasoner (legacy id) support?
AI21: Jamba Large 1.7 supports up to 256K tokens. DeepSeek Reasoner (legacy id) supports up to 1M tokens.
Do both AI21: Jamba Large 1.7 and DeepSeek Reasoner (legacy id) support tool calling?
AI21: Jamba Large 1.7: yes. DeepSeek Reasoner (legacy id): not advertised.