ChatGPT started with a single model, but in less than three years, it has flooded the market with models of varying capabilities. So much so that OpenAI itself has had to create a guide explaining its models so users don’t go crazy when using the chatbot.
And it has several models under its belt, leading to the most powerful one currently: GPT-40. But we have many more at our disposal, hence the importance of knowing how to differentiate each one according to the use we want to make of AI. Each one responds to specific needs such as creativity, speed, data accuracy… so if you are a regular user of this type of chatbot, you may even be using the wrong model for your tasks. Stay tuned, as we’ll show you and differentiate all the ChatGPT models.
OpenAI has been releasing more and more derivatives of its own chatbot, and each one responds to different user profiles. In fact, it’s important to note names like “o4” or “o3.” These help us understand what technology the company is using for that particular assistant. And each one is optimized for different tasks. We’ll explain the key differences between them.
The different models of ChatGPT
GPT-4o
GPT-40 is the most cutting-edge model to date. In fact, it’s a versatile device, ready to take on any challenge with ease. Its latest version arrived this May and is capable of processing text, images, and audio without breaking a sweat. In fact, that’s something the previous models couldn’t fully do.
Plus, it’s faster than GPT-4 Turbo and has much lower latency. This “all-terrain” version has also been trained to reason in real time, and best of all, it’s the model used for free ChatGPT users. However, there are daily limits.
GPT-4.5
Before GPT-4o existed, OpenAI released this version, which consists of two very different models:
- o4-mini: This version was launched with lightness, efficiency, and data savings in mind. It has very good language comprehension speed, but its lightness means it lacks some features, as it isn’t multimodal.
- o4-mini-high: This is a more powerful variant of the previous one. It maintains its lightness, but improves its performance on tasks that require more brainpower from the AI.
GPT-4
GPT-4 was OpenAI’s first major breakthrough. In fact, it’s still available for tasks that require greater data accuracy. Being a step below the previous ones, it’s not natively multimodal either. But it does excel at language understanding, advanced reasoning, and performs very well on long tasks. However, because it’s slower and more expensive than GPT-4, it’s slowly being replaced by the latter.
GPT-3.5
We’re talking about the fastest and most economical model. And by default, it’s the free model for all ChatGPT users. It’s best suited for simple responses or initial development tests. However, it’s more limited in terms of analysis and context understanding, and it’s also not multimodal.
