Chrome extension

Complexity

Adds quick model switching, themes, clearer code blocks and chat export to Perplexity, for frequent users of the AI search tool.

What it does

Complexity is an open-source add-on for Perplexity that adds quicker model switching, custom themes, better code blocks and conversation export. It is aimed at frequent Perplexity users who want more control over the interface and how they save their chats.

Key features

  • Switch between Claude, GPT, Gemini and other models available in Perplexity
  • Improved code blocks with syntax highlighting, wrapping and toolbars
  • Export or copy conversations as markdown with configurable citations
  • Themes, fonts, dark mode and custom CSS for the Perplexity interface
  • Open Threads and Spaces without leaving the current page

Use cases

  • Saving Perplexity research as markdown notes with sources
  • Reading code answers more easily
  • Changing models quickly while comparing answers

Getting started

After installing, open Perplexity in Chrome and the extra controls appear in the interface; you can turn individual plugins and themes on or off in the extension settings.

Good to know

It only works on Perplexity and is an unofficial add-on, so changes to Perplexity's site can break features. Model choices depend on what your Perplexity account offers.