Jamba Large 1.7 by AI21 is a hybrid SSM-Transformer model with 256K context, grounding, instruction-following, and open-model licensing.
Capabilities, design details, and architectural traits
Jamba Large 1.7 is AI21’s open model for enterprise workflows that need long context, grounding, and stronger instruction following. The official materials describe it as a Jamba-family update built on a hybrid SSM-Transformer architecture with 256K context.
The model card identifies Jamba Large 1.7 as a 94B active / 398B total parameter model. It is documented as an open model from AI21 with support for English, Spanish, French, Portuguese, Italian, Dutch, German, Arabic, and Hebrew. The official materials also note that it builds on earlier Jamba efficiency gains.
Independent evaluations · Artificial Analysis
Evaluate specifications, pricing, and independent benchmark indices
| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | AI21 Labs | Anthropic | Anthropic |
| Release Date | July 7, 2025 | July 24, 2026 | June 9, 2026 |
| Knowledge Cutoff | Aug 2024 | May 2026 | - |
| Context & Limits | |||
| Context Window | 256K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | $2 Best Input Pricing | $5 | $10 |
| Output Pricing | $8 Best Output Pricing | $25 | $50 |
| Modalities | |||
| Inputs | text | textimage | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 5.0 | 63.1 Best Intelligence Index | 62.1 |
| Coding Index | - | 78.0 Best Coding Index | 76.5 |
| Agentic Index | - | 59.2 Best Agentic Index | 56.6 |
Graduate-level reasoning and expert Q&A evaluation.
Extremely difficult logical reasoning and knowledge.
Logical reasoning over long context windows.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
