GPT-5 mini is a chat model trained by OpenAI, with a knowledge cutoff of May 2024, and a context window of 400,000 tokens. You can configure the model's reasoning level and verbosity.

Knowledge cutoffMay 2024
Context window400,000 tokens
Release dateAug 2025

A smaller, faster version of GPT-5, OpenAI's most powerful model. Great for well-defined tasks and precise prompts.

On Zo, you can choose between all the leading AI models for chatting, research, coding, and generating media. We believe in giving you the power to explore different models so that you can get the best results for any task.

GPT-5 mini on Zo Computer