Jamba Large 1.7
AI21 Labs · 2025-07-03 · 398.6B parameters
Jamba Large 1.7 is AI21 Labs' July 2025 open-weight hybrid Mamba-Transformer mixture-of-experts model, described by AI21 as having 398B total and 94B active parameters and a 256K-token context window. It updates Jamba Large 1.6 with improved grounding and instruction following. The model targets long-context enterprise workloads and is available for self-deployment from Hugging Face as well as through AI21 Studio.