ChatGPT Pricing & Plans

GPT-4o is a versatile, multimodal flagship model optimized for speed — it processes text, images, and audio and responds almost instantly, making it ideal for everyday conversations, creative writing, coding assistance, and voice interactions. The o1 model series uses an internal 'chain-of-thought' reasoning process where it 'thinks' step by step before responding, making it significantly slower but far more accurate on hard problems like abstract math, complex scientific reasoning, and multi-step logic challenges. Neither is strictly 'smarter' — GPT-4o is the Swiss Army knife for general use, while o1 acts like a specialist consultant for high-stakes analytical tasks.