The Ultimate Guide to OpenAI Models (GPT-4o vs. GPT-4.5 vs. o4-mini): Which One’s Right for You?
Last Updated on August 29, 2025 by Editorial Team
Author(s): Parsa Kohzadi
Originally published on Towards AI.
Not sure which OpenAI model to use? This guide helps you pick the best one for writing, coding, or strategy — fast.
Most people are using the wrong AI model — and it’s silently sabotaging their results. With over 7 OpenAI models now available and millions of users confused daily, choosing the wrong one can cost hours and money.
This article provides a comprehensive overview of various OpenAI models including GPT-4o, GPT-4.5, and o4-mini, explaining their unique features, best-use scenarios, and real-world applications. It emphasizes the importance of choosing the right model to optimize productivity and outcomes in tasks such as creative writing, coding, and data analysis.
Read the full blog for free on Medium.
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