GPT-5.3 Instant

OpenAI GPT-5 current
gpt-5.3-instant
Confidence: high
Context Window
—
Max Output
—
Input Price
$1.75/MTok
Output Price
$14.00/MTok
Released
2026-03-05
Last Verified
2026-03-11

Capabilities

Modalities
Input
text image file
Output
text
Web Search
Code Execution
Computer Use
Image Gen
Video Gen
Voice
File Upload
API Access
Pricing Notes

$1.75 input / $14.00 output per MTok

Availability

Current default model in ChatGPT as of March 2026. Replaced GPT-5.2 as the standard chat model.

Changelog

2026-03-05
release

GPT-5.3 Instant released as the new default model in ChatGPT.

source ↗

Sources

Tools Using This Model

ChatGPT

Other OpenAI Models

GPT Image 1 current GPT-5.4 current GPT-5.4 (via Cursor) current GPT-5.4 (via GitHub Copilot) current GPT-5.4 Pro current o3 current o3-Pro current o4-mini current GPT-4o GPT-4o mini
View all OpenAI models →

Featured Comparisons

ChatGPT vs Claude Full model-by-model comparison

Quick Links

← All models OpenAI profile This week's updates