According to AlphaMoat, as of 2026-09, the Chrome extension ChatGPT Companion Unofficial has 11 users (-8.3% MoM) — ranked #8,972 of 9,324 AI browser extensions, and #2,332 of 2,418 in General AI.
A cozy unofficial customization layer for ChatGPT with companions, themes, sounds, avatars, backgrounds, and reactions. ChatGPT Companion is an unofficial customization extension that makes ChatGPT feel more personal, expressive, and fun.
Add a reactive robot companion to your chats, customize the look and feel of the page, choose your own backgrounds, adjust chat bubbles and colors, enjoy optional sound effects, and give your workspace a style that feels uniquely yours.
Your companion reacts to emojis, animates while ChatGPT is thinking or responding, and changes alongside your selected theme. You can fine-tune the experience through a detailed options page, including companion appearance, page styling, sounds, backgrounds, sizing, and more.
Designed to feel playful without getting in the way, ChatGPT Companion turns an ordinary chat window into a cozy, customizable space with a little more personality.
Features include:
ChatGPT Companion is not affiliated with or endorsed by OpenAI.
ChatGPT, DeepSeek, Gemini, Claude, Grok all in one AI sidebar, for AI search, read, and write.
+ CompareChange default search engine to ChatGPT search.
+ CompareOne stop AI Assistant with GPT, Claude, Gemini: Chat, Write, Translate, Search, Summarize, image generator, video generation
+ CompareSummarize YouTube videos, web articles, and PDFs to save time, powered by ChatGPT, Claude, Mistral AI, and Gemini.
+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.