The Model Family Tree: Every Frontier Model and Its Lineage

By C.W. Jameson · Published 10 October 2025 · Last reviewed 10 October 2025

Most model names obscure their lineage. This is the family tree with the actual derivative relationships.

Visual guide to the lineage of every frontier model family: GPT, Claude, Gemini, Llama, Mistral, and the open-weights forks.