PERPLEXITY : A fully local option is now available on the Perplexity Computer macOS Desktop app for Pro, Max, and Enterprise subscribers!

They did it 

Perplexity Computer no longer needs the internet or paid credits to work.

A fully local mode is powered by PPLX Pro, a post-trained version of the Qwen 3.8 model. For complex tasks, it can also run in Hybrid mode to use cloud models.

Perplexity Computer has a very good harness, and this needs a lot of testing time!

* 36 GB of unified memory is recommended.