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 Meta: Muse Spark 1.2 Contributor
Meta: Muse Spark 1.2 Contributor wins on 5 of 6 axes — pricing and capability skew in its favour for most workloads.
Muse Spark 1.2 contributor tier is a reasoning model from Meta designed for developers who want to start building at an even lower cost. It’s meaningfully cheaper than Muse Spark...
Model details →Side-by-side comparison
| Capability | AI21: Jamba Large 1.7 | Meta: Muse Spark 1.2 Contributor | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 256K | 1.0M | 🏆 Meta: Muse Spark 1.2 Contributor |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $0.10 | 🏆 Meta: Muse Spark 1.2 Contributor |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $8.00 | $0.20 | 🏆 Meta: Muse Spark 1.2 Contributor |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Meta: Muse Spark 1.2 Contributor |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Meta: Muse Spark 1.2 Contributor |
Frequently asked questions
Is AI21: Jamba Large 1.7 better than Meta: Muse Spark 1.2 Contributor?
Meta: Muse Spark 1.2 Contributor wins on 5 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 Meta: Muse Spark 1.2 Contributor?
Input: $2.00 vs $0.10 per 1M tokens. Output: $8.00 vs $0.20 per 1M tokens.
What context windows do AI21: Jamba Large 1.7 and Meta: Muse Spark 1.2 Contributor support?
AI21: Jamba Large 1.7 supports up to 256K tokens. Meta: Muse Spark 1.2 Contributor supports up to 1.0M tokens.
Do both AI21: Jamba Large 1.7 and Meta: Muse Spark 1.2 Contributor support tool calling?
AI21: Jamba Large 1.7: yes. Meta: Muse Spark 1.2 Contributor: yes.