Glossary/AI in Marketing/Foundation Model
AI in Marketing
Foundation Model
A large AI model trained on broad data, such as GPT, Gemini, Claude, or Llama, that can be adapted to many tasks.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
A foundation model is a large AI model trained on broad data that can be adapted to many tasks, such as writing, summarizing, coding or image analysis. Examples include GPT, Gemini, Claude and Llama. Businesses build on foundation models through prompting, retrieval and fine-tuning rather than training models from scratch.