Collocations for prototype - noun

early
They created an early prototype using this software.

working
pre-production

build, create, develop, make, produce
have
We have a working prototype that is ready to demonstrate.

test

stage
The car is presently at the prototype stage.

prototype for
The team is developing a prototype for a digital compact camera.

prototype of
He is working on the prototype of a new type of ventilator.