Model

An AI model is basically a computer program designed to mimic how the human brain works. You give it some input, like a prompt or a question, it processes that information and then gives you a response.

Think of it a bit like teaching a kid. The model “learns” by seeing tons of examples of how people talk, respond, and act in different situations. Over time, it starts to recognize patterns, understand context, and generate responses that make sense.

There are all kinds of AI models out there. Some are built to understand and generate language. These are called large language models (LLMs). Examples include ChatGPT o3, Claude Sonnet 4, Gemini 2.5 Pro, Meta Llama 4, Grok 3, DeepSeek, and Mistral. Others are trained to work with video, like Google Veo 3, OpenAI Sora, or Runway Gen-4. Some focus on voice, such as ElevenLabs, Cartesia, and Suno.

Then there are more traditional models behind the scenes of everyday tech: classification models (used in things like fraud detection), ranking models (which power search engines, social media feeds, and ad systems), and regression models (used to make predictions with numbers, like forecasting sales or stock prices).