AI Update, February 28, 2025: AI News and Views From the Past Week

Artificial Intelligence — Fri., Feb. 28, 2025

Catch up on select AI news and developments from the past week or so (in no particular order):

OpenAI has released GPT-4.5, a major upgrade designed to enhance pattern recognition and connection-making. The model, available to Pro subscribers and subsequently to Plus users, boasts reduced hallucinations and improved instruction-following.

Microsoft has introduced two new models, Phi-4-mini and Phi-4-multimodal, optimized for efficiency and multimodal processing. Phi-4-mini, a compact 3.8 billion-parameter text model, is designed for mobile devices and excels in math and coding tasks. Phi-4-multimodal, with 5.6 billion parameters, processes text, images, audio, and video, leveraging a Mixture of LoRAs technique to optimize multimodal learning.

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