# Model License Labyrinth: Llama vs Gemma vs Qwen vs Mistral — 'Derivative Work' Debate

> Source: https://sukruyusufkaya.com/en/learn/fine-tuning-cookbook/ftc-model-license-derivative-work
> Updated: 2026-05-14T14:43:03.545Z
> Category: Fine-Tuning Cookbook (Model-by-Model)
> Module: Part XVIII — Compliance, Governance & Red-Teaming
**TLDR:** Which license when publishing FT model? How does base model's license affect **derivative work**? Llama Community License v3 (>700M MAU restriction), Gemma ToS (responsible use), Qwen2 Apache 2.0 (most flexible), Mistral Research vs Apache (model-specific), OpenAI ToS (output restriction). Cookbook decision matrix.