GPT Realtime 1.5: What It Is and What It Can Do

TLDR

OpenAI just released a new AI model designed specifically to listen and talk in real time.
It is built for developers who want to create apps where you can have fast, smooth voice conversations with an AI.
There is also a companion model for handling audio in standard text-style chats.
GPT Realtime 1.5 is an AI model made by OpenAI that focuses entirely on speech and audio. Instead of just typing to an AI and reading its text response, this model is meant for people who want to talk back and forth out loud, making it useful for building voice assistants, tutoring apps, or interactive tools.

What it does well

This model is designed to handle live audio. That means it is good at listening to someone speak, understanding what they are saying, and talking back right away without awkward, robotic pauses. It connects directly to OpenAI's Realtime API (the software bridge that lets apps send and receive live audio instantly), which makes it great for natural, flowing conversations.

What it costs and what it can handle

The announcement does not mention exact prices, how long the audio clips can be, or how much audio memory (the "context window") the model can hold at once. However, it is specifically designed to handle continuous, live audio streams rather than just short, pre-recorded sound bites.

Worth knowing

Right now, this model is only available to software developers through OpenAI's developer tools. Everyday users cannot just download an app to use it directly; someone has to build an app or program around it first. Also, OpenAI released a slightly different version called gpt-audio-1.5 for the Chat Completions API, which is used for standard back-and-forth chats rather than live, continuous talking.

GPT Realtime 1.5, Explained Simply

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What it does well

What it costs and what it can handle

Worth knowing