Jamba 1.7
Jamba 1.7 is an AI21 language-model release. Jamba 1.7 improves grounded answers, instruction following, and optimized serving for self-hosted enterprise work. AI21’s July 3 changelog establishes release, avoiding later dates when third-party endpoints adopted the model. The large tier has 398B total parameters and 94B active; smaller Mini has a different deployment footprint. Long context does not guarantee complete retrieval or factual correctness, and deployed throughput depends on hardware, precision, and prompt length.
2025-07-03
Mini 52B/12B active; Large 398B/94B active
Hybrid Mamba state-space / Transformer; MoE in larger tiers
Jamba Open Model License
Specifications
- Parameters
- Mini 52B/12B active; Large 398B/94B active
- Architecture
- Hybrid Mamba state-space / Transformer; MoE in larger tiers
- License
- Jamba Open Model License
- Context Window
- 262,144 tokens
- Type
- text
- Modalities
- text
Benchmark Scores
Advanced Specifications
- Model Family
- Jamba
- API Access
- Available
- Chat Interface
- Not Available
- Variants
- MiniLarge
Capabilities & Limitations
- Capabilities
- text generationlong contextinstruction following
- Known Limitations
- Long-input quality requires task evaluationLicense and weight footprint vary by tier
- Notable Use Cases
- enterprise question answeringdocument assistantsprivate deployment