Jamba Large 1.7
Jamba Large 1.7 by AI21 Labs is a hybrid SSM-Transformer model with 256K context, grounding, strong instruction-following, and open-model licensing.
Model Overview
Capabilities, design details, and architectural traits
Jamba Large 1.7 - Hybrid long-context model
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.
Core Design
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.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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Evaluate specifications, pricing, and independent benchmark indices
| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | AI21 Labs | Anthropic | Anthropic |
| Release Date | July 7, 2025 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | Aug 2024 | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 256K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | $2 Best Input Pricing | $4 | $2 Best Input Pricing |
| Output Pricing | $8 Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | text | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 6.1 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | - | - | - |
| Agentic Index | - | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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