I'm not aware of any pre-existing open-source model that selectively edits images (leaving some parts untouched) based on instructions. This new method is much better than the image2image that shipped with the original stable diffusion. I'm looking at the InvokeAI docs right now and don't see anything like this feature. We previously had smart-masks, but InstructPix2Pix mostly does away with the need for those as well.

If I am mistaken please provide links to these prior features.