zoo / ZOO_VS_ZEN.md
Hanzo Dev
docs: Clarify Zoo AI vs ZenLM relationship
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Zoo AI vs ZenLM - Project Relationship

Overview

Zoo AI and ZenLM are the same foundational technology under different brands:

  • ZenLM: Collaborative multi-org project (Zoo Labs + Hanzo AI + Lux)
  • Zoo AI: Zoo Labs Foundation-branded version

Why Two Brands?

ZenLM (https://github.com/zenlm)

  • Purpose: Neutral collaborative brand for multi-org cooperation
  • Ownership: No single organization owns it
  • Contributors: Zoo Labs, Hanzo AI, Lux Industries equally
  • Use Case: Research papers, academic work, cross-org projects

Zoo AI (https://github.com/zooai)

  • Purpose: Zoo Labs Foundation's public-facing brand
  • Ownership: Zoo Labs Foundation (501c3)
  • Contributors: Zoo Labs leads, partners contribute
  • Use Case: Nonprofit branding, fundraising, community building

Model Naming

ZenLM

  • zenlm/zen-nano-0.6b
  • zenlm/zen-eco-4b-instruct
  • etc.

Zoo AI

  • zooai/zoo-nano-0.6b
  • zooai/zoo-eco-4b-instruct
  • etc.

Same models, different namespaces.

Which to Use?

Use ZenLM when:

  • Publishing research papers
  • Multi-organizational collaboration
  • Need neutral branding
  • Academic citations

Use Zoo AI when:

  • Representing Zoo Labs Foundation
  • Nonprofit fundraising
  • Community outreach
  • Zoo Labs-specific projects

Technical Relationship

ZenLM (collaborative)
    β”œβ”€β”€ Zoo AI (Zoo Labs branded fork)
    β”œβ”€β”€ Hanzo variants (if needed)
    └── Lux variants (if needed)

All share the same:

  • Base models (Qwen3)
  • Training methods (GSPO)
  • Architecture
  • License (Apache 2.0)

HuggingFace Organizations

  • huggingface.co/zenlm - Collaborative org
  • huggingface.co/zooai - Zoo Labs Foundation

GitHub Organizations

  • github.com/zenlm - Collaborative org
  • github.com/zooai - Zoo Labs Foundation

Recommendations

  1. Primary development: Use ZenLM for technical work
  2. Public branding: Use Zoo AI for Zoo Labs Foundation outreach
  3. Cross-publish: Push models to both organizations
  4. Documentation: Reference both projects

Both projects serve the same mission: Open AI for everyone.