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 Mancer: Weaver (alpha)
AI21: Jamba Large 1.7 and Mancer: Weaver (alpha) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
An attempt to recreate Claude-style verbosity, but don't expect the same level of coherence or memory. Meant for use in roleplay/narrative situations.
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | Mancer: Weaver (alpha) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 8K | 🏆 AI21: Jamba Large 1.7 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $0.75 | 🏆 Mancer: Weaver (alpha) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $1.00 | 🏆 Mancer: Weaver (alpha) |
| 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 Mancer: Weaver (alpha)?
AI21: Jamba Large 1.7 and Mancer: Weaver (alpha) 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 Mancer: Weaver (alpha)?
Input: $2.00 vs $0.75 per 1M tokens. Output: $8.00 vs $1.00 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and Mancer: Weaver (alpha) support?
AI21: Jamba Large 1.7 supports up to 256K tokens. Mancer: Weaver (alpha) supports up to 8K tokens.
Do both AI21: Jamba Large 1.7 and Mancer: Weaver (alpha) support tool calling?
AI21: Jamba Large 1.7: yes. Mancer: Weaver (alpha): not advertised.