Merlin
Merlin is a browser extension that puts GPT-4, Claude, Gemini, and 20 other AI models on any webpage with a single keyboard shortcut.
About
Merlin is a Chrome extension that lets you summon an AI assistant anywhere on the web by pressing Ctrl+M or Cmd+M. From any tab you can ask questions, summarize the current page or a YouTube video, draft or reply to emails and LinkedIn messages, generate images, and translate text into 25 languages, all without switching to a separate tab. It bundles access to over 20 models including GPT-4, Claude, Gemini, Llama, and Mistral. A free plan covers 102 queries per day, and a paid Pro plan runs around $19 per month on annual billing.