Reasoning models and the model landscape
There are hundreds of models and new ones every month. You don't need to track them all. You need four questions that sort any model in a minute.
In this lesson you'll learn to
- Explain what a reasoning model does differently, what it costs, and when it's worth it.
- Compare closed models behind an API with open-weight models you can run yourself.
- Explain model families and sizes, and how to pick the smallest model that does the job.
- Describe what multimodal models accept and produce, and how images and audio are billed.
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