OpenAI unveils GPT-4.5 ‘Orion,’ its largest AI model yet

Date:

February 27, 2025

OpenAI announced on Thursday it is launching GPT-4.5, the much-anticipated AI model code-named Orion. GPT-4.5 is OpenAI’s largest model to date, trained using more computing power and data than any of the company’s previous releases. Despite its size, OpenAI notes in a whitepaper that it does not consider GPT-4.5 to be a frontier model. Subscribers […]

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