How many parameters does GPT-5.3 Chat have?

Parameter count for GPT-5.3 Chat is not available. See the Hugging Face model page for full specifications.

Who created GPT-5.3 Chat?

GPT-5.3 Chat was published by OpenAI on Hugging Face.

GPT-5.3 Chat

Name: GPT-5.3 Chat
Author: OpenAI

Multimodalby OpenAI·Model page ↗

OpenAI's GPT-5.3 chat model with a 128K-token context for multimodal text, image, and file conversations.

Max output

Most tokens the model can return in a single response.

16Ktokens

Pricing

per 1M tokens

Input$1.75 /1M

Output$14 /1M

Cache read$0.175 /1M

Web search$0.01

Model Description

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...

Author

OpenAI

Organization · ✓

openai

Details

Downloads—

Likes—

AccessClosed Source

Context128K tokens

Input price$1.75 /1M

Output price$14 /1M

CreatedMar 3, 2026

Updated—

View on Hugging Face

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