Jamba 1.6 — reviews, specs & pricing

AI21's hybrid Mamba-Transformer model.

Summary

Jamba 1.6 combines Mamba and Transformer architectures in a mixture-of-experts design, offering a 256k context window with efficient long-context inference. It comes in Large and Mini sizes. It's open-weight under the Jamba Open Model License.

Sample use case

Used for long-document processing, RAG, and enterprise applications needing efficient long-context handling. Suited for cost-sensitive large-context workloads.

Specifications

  • Provider: ai21
  • License: open
  • Parameters: 398B
  • Context: 256k tokens
  • Input price: $0.2/M tok
  • Output price: $0.4/M tok
  • Released: 2025-03-05

Pros

  • Efficient long-context inference
  • Hybrid architecture innovation
  • Open weights

Cons

  • Smaller community/ecosystem
  • License has usage conditions
  • Less proven on broad benchmarks

Average rating 0.0 from 0 community reviews on Reviuws.

Frequently asked questions

What is Jamba 1.6?

Jamba 1.6 combines Mamba and Transformer architectures in a mixture-of-experts design, offering a 256k context window with efficient long-context inference. It comes in Large and Mini sizes. It's open-weight under the Jamba Open Model License.

How much does Jamba 1.6 cost?

Jamba 1.6 costs $0.2 per million input tokens and $0.4 per million output tokens.

Is Jamba 1.6 open source?

Jamba 1.6 is released under the open license.