The best open source LLM models are not the biggest ones. They are the ones you can actually run. PrivateAIAgent’s open source LLM comparison lines up parameter counts, context windows and LLM benchmark scores side by side, so you can judge the best free LLM models on data instead of hype.
Hardware is the real constraint, full stop. Our local LLM hardware requirements tables and LLM VRAM requirements calculator show which open-weight LLM models fit your GPU, from laptop-friendly 7B models to 70B models that demand serious VRAM. If you want open source alternatives to ChatGPT running entirely on your machine, start here.
Then there is the use case. The best LLM for coding and the best open source reasoning model are usually different models, which surprises people. We track open source LLM for coding scores and license terms, so you land on a model that performs and that you are allowed to ship. Set up our private AI to put this data to work for you.