gpt-5.3-chat

gpt-5.3-chat

GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly...

Modalities

Input

textimage

Output

text

Pricing

Cost per 1 million tokens

Input

$2.1

Output

$16.8

Model Specs

Context Window

128,000

Max Output

16,384

Release Date

2026-03-03

Knowledge Cutoff

2025-08-31

Capabilities

Reasoning

Tool Calling

Vision

Last Updated: 2026-03-03

Provider: