With both ChatGPT and OpenAI’s API, the company plans to “release GPT-5 as a system that integrates a lot of our technology, including o3,” Altman says, adding that “we will no longer ship o3 as a standalone model.” OpenAI first teased o3 in December and launched o3-mini in January.

GPT-5’s debut will be preceded by the release of a less capable large language model, GPT-4.5, in the coming weeks. The latter algorithm is the successor to the company’s general-purpose GPT-4o model. GPT-4o is less adept at tasks such as generating code than OpenAI’s reasoning-optimized LLMs, but it offers significantly lower inference costs.

As competition heats up, Sam Altman has announced plans to merge OpenAI's scattered AI models into a single system that "just works."

An Elon Musk-led bid for OpenAI's nonprofit assets could cause issues for Sam Altman's ambitions to turn the AI lab into a for-profit corporation.

OpenAI is nearing the release of a new artificial intelligence model called GPT-4.5 after hitting stumbling blocks in developing the AI system last year.