New models and developer products announced at DevDay

Today, we’re releasing the Assistants API⁠(opens in a new window), our first step towards helping developers build agent-like experiences within their own applications. An assistant is a purpose-built AI that has specific instructions, leverages extra knowledge, and can call models and tools to perform tasks. The new Assistants API provides new capabilities such as Code Interpreter and Retrieval as well as function calling to handle a lot of the heavy lifting that you previously had to do yourself and enable you to build high-quality AI apps.

This API is designed for flexibility; use cases range from a natural language-based data analysis app, a coding assistant, an AI-powered vacation planner, a voice-controlled DJ, a smart visual canvas—the list goes on. The Assistants API is built on the same capabilities that enable our new GPTs product⁠: custom instructions and tools such as Code interpreter, Retrieval, and function calling.

A key change introduced by this API is persistent and infinitely long threads, which allow developers to hand off thread state management to OpenAI and work around context window constraints. With the Assistants API, you simply add each new message to an existing thread.

Assistants also have access to call new tools as needed, including:

As with the rest of the platform, data and files passed to the OpenAI API are never used to train our models⁠ and developers can delete the data when they see fit.

You can try the Assistants API beta without writing any code by heading to the Assistants playground⁠(opens in a new window).