Jamba Large 1.7
Jamba Large 1.7 is the latest model in the Jamba open family, offering improvements in grounding, instruction-following, and overall efficiency.
Specifications
| Lab | AI21 |
|---|---|
| Context window | 256K tokens |
| Input price | $2.00/1M |
| Output price | $8.00/1M |
| Release | Aug 2025 |
Strengths
- Hybrid SSM-Transformer architecture for efficient long-context processing
- 256K context window with strong grounding and instruction following
- Frontier-lite pricing ($2.00/$8.00) with flagship-competitive quality
- Improved efficiency over previous Jamba versions
- Strong at multi-document reasoning and retrieval tasks
Weaknesses
- Higher pricing than comparable open-weight alternatives
- Less widely adopted than Transformer-only architectures
- Smaller community and fewer fine-tuned variants available
Best for
- Long-document analysis and summarization
- Enterprise RAG and knowledge retrieval
- Grounded instruction-following tasks
- Cost-effective alternative to flagship models
In Depth: Jamba Large 1.7
Summary
Jamba Large 1.7 is an AI model from AI21.
Released in Aug 2025. It currently appears in the Overall category on LMRank. It takes text input and produces text output, with a context window of 256K tokens. Input pricing is $2.00 per 1M tokens and output is $8.00 per 1M tokens on OpenRouter.