Jamba (AI21)

Overview

AI21 Labs is an Israeli AI company founded in 2017. They develop the Jamba series, featuring a unique SSM-Transformer hybrid architecture for efficient long-context processing. As of 2026, the latest model is Jamba Large 1.7 with 256K context and enhanced grounding. Focused on enterprise use cases in finance, healthcare, and retail.

Latest: Jamba Large 1.7

Latest Jamba family model with improvements in grounding, instruction following, and overall efficiency.

Specs

Metric	Value
Active Params	94B
Total Params	398B
Context Length	256K tokens
Architecture	SSM-Transformer hybrid

Key Features

1. SSM-Transformer Hybrid Architecture

Unique architecture combining State Space Models (SSM) and Transformer. More efficient long-context processing with lower memory usage than pure Transformers.

2. 256K Context

Ideal for contracts, papers, and long-form documents.

3. Enhanced Grounding

Major improvement in Jamba 1.7. Generates complete, accurate answers fully grounded in given context, reducing hallucinations.

4. Improved Steerability

Better instruction following.

5. Open Model License

Jamba Open Model License — research use and commercial use allowed under terms.

Vertical Solutions

Finance

• Investment research automation
• Digital banking support
• M&A due diligence

Healthcare

• Medical literature generation
• Procurement support

Retail

• Product description generation
• Conversational AI

Strengths

• ✅ SSM-Transformer hybrid for efficient long-context
• ✅ 256K context
• ✅ Specialized for finance, healthcare, retail
• ✅ Enhanced grounding
• ✅ Open model license
• ✅ Memory-efficient

Weaknesses

• ❌ Low brand awareness
• ❌ Small ecosystem
• ❌ No consumer product
• ❌ Limited Japanese support
• ❌ Weak multimodal

Official Resources

• Website: https://www.ai21.com
• Jamba: https://www.ai21.com/jamba
• AI21 Studio: https://studio.ai21.com
• Hugging Face: https://huggingface.co/ai21labs