Active

May 5, 2026

APIHosted UICloud

GPT-5.5 Instant

LLMMultimodal

GPT-5.5 Instant is the new default ChatGPT model optimized for low latency, higher factuality, and more personalized responses leveraging memory from past chats and connected apps.

Modalities

Input

Text

Image

Output

Text

Code

Structured data

Capabilities

5

Reasoning★

Reasoning

Multimodal understanding★

Multimodality

Image understanding★

Vision

Coding★

Coding

Multilingual★

Language

Sources

Blog1

01

GPT-5.5 Instant: smarter, clearer, and more personalized | OpenAI