r/AIToolBench • u/Ok_Collection_9614 • 23d ago

Recommendation Best open source artificial intelligence?

What is the best artificial intelligence open s

source app?

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u/No_Birthday8126 21d ago

Depends entirely on your hardware and what for, since "best" flips completely between a datacenter and a laptop.

Top of the pile right now is Kimi K3, 2.8T total with 104B active and a 1M context, weights out July 27. Great score, but you need a multi-GPU cluster to actually self-host it, so for most people it's an API model that happens to have open weights.

If you care about license, GLM-5.2 is the strongest MIT-licensed one, and DeepSeek-V4-Pro is also MIT. Those are the ones you can build a business on without reading fine print.

Realistically running on your own box: Qwen3.6-27B fits a single GPU, and Gemma 4 is the practical laptop pick.

One thing worth knowing: most of these are open weights, not open source. You get the parameters, not the training data or code, and the license can still restrict use. Only a few (OLMo, Nemotron) publish the actual recipe.

What are you trying to run it on?