Sam Altman "GPT-4.5 to Launch Within Weeks... Integrating General and Reasoning AI"

"GPT-4.5 and GPT-5 Roadmap Update" Announced on X
GPT-4.5 to Be the Last Non-Chain-of-Thought Model
Next AI Model Release Delayed Once

Sam Altman, CEO of OpenAI, the developer of ChatGPT, announced on the 12th (local time) that the company plans to release its latest AI model, GPT-4.5, within a few weeks.

Sam Altman, CEO and founder of OpenAI, the developer of ChatGPT, attended the 'Kakao Media Day' held at the Plaza Hotel in Jung-gu, Seoul on the 4th and had a conversation with Jeong Sin-ah, CEO of Kakao. Photo by Kang Jin-hyung

Altman wrote on his social media platform X (formerly Twitter) in a post titled "OpenAI Roadmap Update on GPT-4.5 and GPT-5" that "the next model to be released is internally called 'Orion,' which is GPT-4.5."

He emphasized that the GPT-4.5 model "will be the last non-chain-of-thought model we develop." Chain-of-thought refers to the reasoning process where AI goes through intermediate thinking steps to arrive at an answer. Non-chain-of-thought means it does not perform such reasoning.

OpenAI has been developing a separate inference model series called the 'o series' alongside general AI models. The first inference model, 'o1,' was released in September last year, followed by 'o3' in December.

He acknowledged that "current models and products have become too complex" and said, "We plan to focus on simplifying the product lineup going forward."

He added, "A major goal will be to integrate the 'o series' models with the GPT series models," explaining, "This will allow us to effectively utilize all tools, determine when deep thinking is necessary, and create a system that works well across a wide range of tasks."

The model to be released after GPT-4.5 is GPT-5. He stated, "We plan to launch GPT-5 on both ChatGPT and the API (Application Programming Interface)," adding, "It will be a system that integrates various technologies, including 'o3'." He also mentioned, "Going forward, 'o3' will no longer be offered as a standalone model."

Altman noted, "Free ChatGPT users will have unlimited access to the basic intelligence level of GPT-5, while Plus subscribers (paid service) will have access to a higher intelligence level of GPT-5."

Although he did not specify exact release dates for these models, in response to a related question, he said, "GPT-4.5 will be released in a few weeks, and GPT-5 within a few months."

OpenAI’s next AI model was expected to be released last year. However, delays have led to analyses suggesting that AI model growth may have reached its limits.

This content was produced with the assistance of AI translation services.