Name: GPT-5.1
Author: OpenAI

Question 1

When was GPT-5.1 released?

Accepted Answer

GPT-5.1 was released on November 13, 2025 by OpenAI.

Question 2

Who created GPT-5.1?

Accepted Answer

GPT-5.1 was created by OpenAI.

Question 3

What is the license for GPT-5.1?

Accepted Answer

GPT-5.1 is released under the Proprietary license.

Question 4

What is the knowledge cutoff date for GPT-5.1?

Accepted Answer

GPT-5.1 has a knowledge cutoff of September 2024. This means the model was trained on data up to this date and may not have information about events after this time.

Question 5

Is GPT-5.1 multimodal?

Accepted Answer

Yes, GPT-5.1 is a multimodal model that can process both text and images as input.