Jamba 1.5 Large
by AI21 Labs · open-source · Last verified 2026-03-17
AI21's flagship hybrid SSM-Transformer model with 398B total parameters and 94B active per token. Delivers frontier-class performance on reasoning and long-context tasks while maintaining the memory efficiency advantages of the Mamba architecture.
https://www.ai21.com/jamba ↗C
C—Below Average
Adoption: CQuality: AFreshness: ACitations: C+Engagement: F
Specifications
- License
- Jamba Open Model License
- Pricing
- open-source
- Capabilities
- text-generation, long-context, reasoning, structured-output, function-calling, efficient-inference
- Integrations
- huggingface, langchain, aws-bedrock, azure-ai, nvidia-nim
- Use Cases
- enterprise-automation, long-document-analysis, complex-reasoning, agentic-workflows, financial-analysis
- API Available
- Yes
- Parameters
- 398B (94B active)
- Context Window
- 256K tokens
- Modalities
- text
- Training Cutoff
- Mid 2024
- Tags
- llm, ssm, mamba, long-context, enterprise
- Added
- 2026-03-17
- Completeness
- 100%
Index Score
48.6Adoption
48
Quality
82
Freshness
80
Citations
52
Engagement
0