Jamba 2
by AI21 Labs · paid · Last verified 2026-03-17
Jamba 2 is AI21 Labs' second-generation hybrid SSM-Transformer model combining Mamba structured state space layers with attention mechanisms for exceptional throughput on long-context tasks. It achieves frontier-level quality while dramatically reducing memory consumption on extended sequences.
https://www.ai21.com/jamba ↗C
C—Below Average
Adoption: C+Quality: AFreshness: A+Citations: CEngagement: F
Specifications
- License
- Proprietary
- Pricing
- paid
- Capabilities
- text-generation, long-context, reasoning, instruction-following, summarization
- Integrations
- AI21 API, AWS Bedrock, Azure AI
- Use Cases
- long-document-analysis, summarization, enterprise-automation, agentic-workflows
- API Available
- Yes
- Parameters
- ~52B (MoE)
- Context Window
- 256K
- Modalities
- text
- Training Cutoff
- 2025
- Tags
- ai21-labs, hybrid, mamba, ssm, long-context, enterprise
- Added
- 2026-03-17
- Completeness
- 100%
Index Score
49.6Adoption
52
Quality
84
Freshness
96
Citations
48
Engagement
0