Model index
OpenAI·GPT

GPT-5.5 Instant

The everyday fast tier of GPT-5.5, improving accuracy, concision, and use of personalized context.

CurrentLanguageMultimodalWeights not released
MODEL NUMBER044
Release date
2026-05-05
Organization
OpenAI
Family
GPT
01

Specifications

Only published specifications are shown.

Input modalities
Text · Image
Open weights
No
Status
Current
02

Overview

Overview

The everyday fast tier of GPT-5.5, improving accuracy, concision, and use of personalized context.

03

Changes from predecessor

Compared with GPT-5.5

PreviousGPT-5.5 · 1M ctx
CurrentGPT-5.5 Instant · ctx
New capabilities Conversation Personalization Web search
04

Architecture & capabilities

Key capabilities

ConversationPersonalizationWeb search
05

Release history

General release

GPT-5.5 Instant updated ChatGPT’s default fast experience.

View source
06

Related models

Select a card to view the related model.

07

Sources