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 Fireworks: Ember-1
Fireworks: Ember-1 wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi K3](https://openrouter.ai/moonshotai/kimi-k3). It is designed to make every token go further: it produces shorter reasoning traces, using roughly 40%...
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | Fireworks: Ember-1 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 1.0M | 🏆 Fireworks: Ember-1 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $3.00 | 🏆 AI21: Jamba Large 1.7 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $15.00 | 🏆 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 | 🏆 Fireworks: Ember-1 |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Fireworks: Ember-1 |
Frequently asked questions
Is AI21: Jamba Large 1.7 better than Fireworks: Ember-1?
Fireworks: Ember-1 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 Fireworks: Ember-1?
Input: $2.00 vs $3.00 per 1M tokens. Output: $8.00 vs $15.00 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and Fireworks: Ember-1 support?
AI21: Jamba Large 1.7 supports up to 256K tokens. Fireworks: Ember-1 supports up to 1.0M tokens.
Do both AI21: Jamba Large 1.7 and Fireworks: Ember-1 support tool calling?
AI21: Jamba Large 1.7: yes. Fireworks: Ember-1: yes.