ModelRefs / Model Family — AI Glossary
Model Family — AI Glossary
A lineage of models sharing an architecture and training methodology, differentiated by size and capability tier. 3), Claude family (Haiku/Sonnet/Opus).
Overview
Examples: GPT-4 family (GPT-4, GPT-4 Turbo, GPT-4o, GPT-4o mini), LLaMA family (LLaMA 1/2/3, LLaMA 3.1/3.2/3.3), Claude family (Haiku/Sonnet/Opus). Families enable developers to swap tiers without changing integration code, as they share APIs, tokenizers, and behavior conventions.
Reference details
| Topic | architecture |
|---|---|
| Last reviewed | 2026-06-24 |
Related terms
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Model Family — AI Glossary.
Frequently asked questions
What is Model Family?
A lineage of models sharing an architecture and training methodology, differentiated by size and capability tier.
What concepts are related to Model Family?
Closely related concepts include model version, model snapshot, model architecture.