Open Source AI: Free Models You Fully Control
Open-source AI models are published with weights anyone can download, inspect and run. That transparency is the opposite of a closed cloud API: you can verify what the model is, run it wherever you like, and never depend on a single company keeping it available.
Models like Llama, Qwen, Mistral and DeepSeek have closed most of the gap to proprietary systems for everyday work. Because they're free to run, the only cost is the hardware you already own — and once it's set up, every query is free and private.
This page gives you a practical map: which open-source models are worth running, what they're good at, and how to get one going on your own computer today.
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- Downloadable weights — inspect and verify everything
- No single vendor can take the model away
- Free to run on hardware you already own
- Llama, Qwen, Mistral, DeepSeek and more, compared
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