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GPT-5.3 - AI Model Details and Benchmarks | DataLearnerAI

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目录

Model catalogGPT-5.3

GP

GPT-5.3

GPT-5.3

Release date: 2026-02-20更新于: 2026-03-09 10:25:45635

Live demoGitHubHugging FaceCompare

Parameters

Not disclosed

Context length

1M

Chinese support

Supported

Reasoning ability

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

GPT-5.3

Model basics

Reasoning traces

Supported

Thinking modes

Thinking Level · Medium (Default)Thinking Level · LowThinking Level · HighThinking Level · Extra-High

Context length

1M tokens

Max output length

GPT-5.3

Open source & experience

Code license

不开源

Weights license

不开源- 不开源

GitHub repo

GitHub link unavailable

Hugging Face

Hugging Face link unavailable

Live demo

No live demo

GPT-5.3

Official resources

Paper

No paper available

DataLearnerAI blog

No blog post yet

GPT-5.3

API details

API speed

3/5

No public API pricing yet.

GPT-5.3

Benchmark Results

No benchmark data to show.

GPT-5.3

Publisher

OpenAI

View publisher details

GPT-5.3

Model Overview

OpenAI仅仅发布了GPT-5.3-Codex，未正式发布GPT-5.3，2026年3月6日直接发布了GPT-5.4模型

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No data

Model type

基础大模型

Release date

2026-02-20

Model file size

No data

MoE architecture

No

Total params / Active params

0.0B / N/A

Knowledge cutoff

No data