AI

GPT (Generative Pre-trained Transformer)

OpenAI’s model family name, now casual shorthand for “a chatbot.” The architecture is transformers; the product is ChatGPT.

Say ChatGPT when you mean the product. Say GPT-x when you mean a specific API model.

GEO reports that say “GPT” without a surface are sloppy.

Examples

  • Engineering uses GPT-4.1 via API. Marketing uses ChatGPT. Different answers.

Related terms

ChatGPT

ChatGPT is OpenAI’s consumer assistant. For GEO, it is both a memory of the web and, with Search, a live retrieval product.
OpenAI

The company behind ChatGPT, GPT models, and several crawlers. A GEO counterparty whether you like them or not.
Transformer architecture

The neural design behind modern LLMs. Fun at parties with engineers. Not a page-ranking lever.

FAQ

Optimize for GPT? +

Optimize for the products people open. The weight file is not your customer.

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