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GPT 5.5 Mini

OpenAI

Introduction

GPT 5.5 Mini is an AI model developed by OpenAI. It supports Chat, Vision, Code capabilities.

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400,000 tokens

190 tokens/s

16000 tokens/s

Chat

Vision

Code

Input Tokens400,000 tokens

Output Tokens128,000 tokens

$0.00075/1K input, $0.0045/1K output

Release Information

Release Date2026-04-25

Versiongpt5.5

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GPT 5.5 Mini - AI Model Timeline