Adam (https://adam.new/ and documentation: https://github.com/Adam-CAD/CADAM) is a model that, coupled with a language model, transforms a natural language query into a 3D object.

In the web version, 4 language models are available, with easy switching from one to the other from the same instruction.
Very fine adjustments.

Export stl or scad.
Sharing by url available.

Open source.
50 free credits per day for the web version.