Custom GPT

Custom GPTs are specialized AI agents: users build them on the OpenAI platform, fine-tuning GPT-4 with custom instructions, proprietary knowledge, and external API actions.

This is the no-code solution for building highly focused AI specialists: not generalists. Custom GPTs are tailored versions of ChatGPT, configured with specific instructions and a dedicated knowledge base (up to 20 uploaded files) to solve niche problems. They execute targeted workflows—like a legal assistant summarizing specific case files or a data analyst generating Python code for a complex dataset—by enabling capabilities such as Code Interpreter, web browsing, and external API calls (Actions). This focused specialization drives efficiency and delivers high-value, domain-specific output, moving beyond the standard chat experience.

https://chatgpt.com/create