Poe
49One subscription across many third-party models
3 products our research names as a replacement for Merlin AI in Browser Extensions & Copilots, each with what it does differently — prices, API and status from our own checks rather than from the vendors’ own pages.
One subscription across many third-party models
has a public API
Merlin AI vs Poe →Multi-model AI assistant living in a browser sidebar
has a public API
Merlin AI vs Monica →Browser sidebar that puts GPT, Claude, Gemini, and other models next to any page you're reading.
Not named as direct replacements — neighbours from the same part of the catalog: the best-rated first, then a sample of the rest.
Chrome and Firefox extension that turns your ChatGPT conversation history into an interactive visual timeline.
Browser sidebar for chatting with several AI models at once, plus summarizing, translating, and pulling text out of images or PDFs.
Opt-in AI layer inside the Arc browser: link previews, tidier tab titles and renamed downloads
A Chrome extension that adds ChatGPT summarizing, research, and translation to any page without switching tabs.
Browser side-panel extension that sorts tabs into spaces and runs an AI agent over what you have open.
Chrome sidebar that opens on any page with several chat models in one panel.
Desktop browser from Opera with a built-in AI sidebar, tab grouping, split-screen, and free VPN.
Chrome extension that sorts open tabs into named groups you can jump between from the keyboard
Browser for Mac and Windows whose assistant answers across your open tabs, Slack, Notion, Teams, calendar and GitHub
Browser extension that adds a context-aware AI chat, backed by 100+ models, to any web page
Chrome extension for asking questions about the page, YouTube video, or document you're currently viewing.
An AI-native web browser from Norton's parent company, built on Chromium.
Not what you were after? Browse all Browser Extensions & Copilots →