zenlm/zen4-mini

TEXT GENERATIONConcurrency Cost:1Model Size:4BQuant:BF16Ctx Length:32kPublished:Feb 10, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Cold

Zen4 Mini is a 4 billion parameter language model developed by Zen LM and Hanzo AI, part of the Zen4 family. Built on the Zen4 Frontier architecture, it offers a substantial 262K token context window. This model is designed for open-ended AI assistance, providing a balance of size and context for various applications.

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Zen4 Mini: A 4B Parameter Model with Extensive Context

Zen4 Mini is a 4 billion parameter language model developed collaboratively by Zen LM and Hanzo AI. It is a key member of the Zen4 family, utilizing the Zen4 Frontier architecture to provide open-ended AI assistance.

Key Capabilities

  • Architecture: Based on the Zen4 Frontier architecture, designed for unrestricted AI assistance.
  • Parameter Count: Features 4 billion total and active parameters, offering a capable model size.
  • Extensive Context Window: Boasts a significant 262K token context length, allowing for processing and generating longer sequences of text.
  • Open-Weight: Built on open-weight principles, promoting accessibility and further development.
  • Licensing: Released under the permissive APACHE-2.0 license.

Good For

  • Applications requiring a moderately sized language model with a very large context window.
  • Developers seeking an open-weight model for flexible integration and modification.
  • Tasks benefiting from processing extensive input or generating detailed, long-form responses.