An AI model whose code, weights, or use rules are open to the public.
An open-source model is like a Lego car with the instructions in the box. You can swap the wheels and spot the missing bumper.
You can run it on your own machine and change it for your job. It can save money, but updates and safety are now your problem.
Local-LLM
Open-source models give Local-LLM a model it can run on your own machine.
Foundation-model
An open-source model often starts as an open Foundation-model.
Fine-tuning
Fine-tuning makes an open-source model better at one job.