If you want to try this out today, I made an open source version using Google + GPT-3 - https://github.com/VikParuchuri/researcher.

It works by getting Google results, finding the most relevant text chunks in the pages, then passing them to GPT-3 to generate a summary. The summary includes sources, so you can verify the info.

It works well for research questions like "what is the best smartphone with a small screen?", or "how do large language models work?". It gives better answers than ChatGPT alone for these types of questions.

I'm finding that the biggest time savings is from not having to wade through SEO-spam pages to find the one relevant paragraph.