GPT-5 Mini

Deprecated

OpenAI · August 2025

OpenAI is retiring this model on 11 December 2026. After that date it will not be available for new work.

A smaller GPT-5 for conversation and code.

Best for: Coding
Superseded by: GPT-5.4 Mini

Context window
400,000 tokens
≈ 300,000 words · about 1,200 pages
Max output
128,000 tokens
≈ 96,000 words in a single answer
Knowledge cutoff
May 2024
its training cutoff

Modalities

TextInput and output
ImageInput only
AudioNot supported
VideoNot supported

Reasoning effort

Minimal
Low
Medium
High

Features

StreamingSupported
Function callingSupported
Structured outputsSupported
Fine-tuningNot supported

Tools

Web searchSupported
Hosted shellNot supported
Apply patchNot supported
Tool searchNot supported

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