Zen 1 72B

Originally released: 2023-12-15 Parameters: 72B | Architecture: Zen 1 Architecture | Context: 4K | License: Apache 2.0

First generation of the Zen LM family (Q4 2023). Dense transformer architecture trained on multilingual data: code, science, mathematics, and general knowledge.

Research Lineage

Generation Release Architecture Key Advancement
Zen 1 Q4 2023 Zen 1 Architecture Foundation, dense transformer, 4K context
Zen 2 Q2 2024 Zen 2 Architecture 128K context window
Zen 3 Q3–Q4 2024 Zen 3 Architecture Sparse MoE routing, multimodal
Zen 4 Q1 2025 Zen 4 Architecture 256K–1M context, extended families
Zen 5 2025+ Zen MoDE Next-generation frontier

The Zen LM Family

Joint research collaboration:

  • Hanzo AI (Techstars '17) — AI infrastructure, API gateway, inference optimization
  • Zoo Labs Foundation (501c3) — Open AI research, ZIPs governance, decentralized training
  • Lux Partners Limited — Compute coordination and settlement layer

All weights Apache 2.0. Download, run locally, fine-tune, deploy commercially.

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