In a post on the X social media platform, the company said that its new GPT-4 Turbo mode is now available for paid ChatG users.

"We have improved abilities in writing, mathematics, logical reasoning and coding," the company said.

The new AI model has been trained on publicly available data dating back to December last year.

"When writing with ChatGPT, responses will be more direct, less verbose, and more the language of our conversations," OpenAI posted.

The company said it will continue to invest in improving its AI models and is eager to see what users do with them.

It says, "If you haven't tried it yet, GPT-4 Turbo is available in ChatGlus, Team Enterprise, and the API."

Meanwhile, the AI ​​company reportedly transcribed more than one million hours of YouTube videos to train GPT-4.

The New York Times reported last week that OpenAI knew it was not legal but "it believed it was fair use".

An OpenAI spokesperson was quoted as saying that the company "uses multiple sources, including publicly available data and partnerships for non-public data," to maintain its global research competitiveness.