GPT-4.5

Name: GPT-4.5
Author: OpenAI

Chat modelGPTGPT-4.5

GPT-4.5

Release date: 2025-02-28Updated: 2025-02-28 09:50:061,038

Live demoGitHubHugging FaceCompare

Parameters

Not disclosed

Context length

128K

Chinese support

Supported

Reasoning ability

GPT-4.5 is an AI model published by OpenAI, released on 2025-02-28, for Chat model, and 128K context length, with a 90.70 score on MATH-500.

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

GPT-4.5

Model basics

Reasoning traces

Not supported

Thinking modes

Thinking modes not supported

Context length

128K tokens

Max output length

No data

Model type

Chat model

Modality (in / out)

Text, Image → Text

Release date

2025-02-28

Model file size

No data

MoE architecture

Total params / Active params

No data / N/A

Knowledge cutoff

No data

GPT-4.5

Open source & experience

Code license

Proprietary

Weights license

Proprietary

GitHub repo

GitHub link unavailable

Hugging Face

Hugging Face link unavailable

Live demo

No live demo

GPT-4.5

Official resources

Paper

No paper available

DataLearnerAI blog

No blog post yet

GPT-4.5

API details

API speed

No data

No public API pricing yet.

GPT-4.5

Benchmark Results

GPT-4.5 currently shows benchmark results led by MMLU Pro (19 / 132, score 86.10), SimpleQA (9 / 47, score 62.50), GPQA Diamond (111 / 187, score 71.40). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.