Merlin AI

by Merlin AI

Freemium

26-in-1 AI Chrome extension with access to GPT-4, Claude, Llama, and Gemini. Chat with webpages, summarize YouTube videos, write emails, generate images, and translate — all from a keyboard shortcut (Cmd+M).

4.4
out of 5.0 · 12+ reviews
Category Productivity
Platform WebChrome Extension
Last Updated May 14, 2026

Overview

Merlin AI is a 26-in-1 Chrome extension that puts GPT-4, Claude, Llama, Gemini, and 20+ other AI models at your fingertips through a simple keyboard shortcut. Press Cmd+M (or Ctrl+M) on any webpage, and a sidebar appears with instant AI assistance — no tab switching required.

The extension covers a wide range of use cases: chat with any webpage's content, summarize YouTube videos in seconds, write and reply to emails in Gmail, generate images with 20+ image models, translate text, rewrite content, and analyze documents. Merlin integrates deeply with popular websites including Gmail, Google Docs, Twitter, LinkedIn, and Reddit.

Merlin positions itself as providing "$130 worth of AI value" in a single subscription, replacing the need for separate ChatGPT, Claude, and Gemini subscriptions. The extension also supports prompt chaining, bulk export, full-text search across conversations, and device sync.

Available as a Chrome extension with millions of installs. Merlin is particularly popular with professionals who want quick AI access across their daily web workflow without context-switching between different AI platforms.

Pricing

Free
$0 /mo
  • Limited daily queries for trying the extension
  • Basic model access
Pro
$19 /mo
  • Full access to GPT-4, Claude, Gemini, and other premium models
  • Unlimited folders, full-text search, bulk export, prompt chaining, and device sync
  • 5x the context window compared to ChatGPT Plus
Lifetime
$99 /mo
  • All Pro features with a single payment
  • Available periodically through promotional deals

Pros & Cons

Pros

Quick activation via keyboard shortcut (Cmd+M) on any webpage
Access to 20+ AI models including GPT-4, Claude, Llama, and Gemini
Deep integration with Gmail, Google Docs, Twitter, LinkedIn, and Reddit
YouTube summarization saves time on video research
Image generation with 20+ models and aspect ratios built in
Prompt chaining enables complex multi-step workflows
Lifetime deal available at $99 — excellent value compared to monthly subscriptions

Cons

Trustpilot rating of 2.3/5 suggests user frustration with the service
Free plan is very limited in daily usage
Feature limitations and unresolved technical issues reported
Less polished interface compared to Sider and Monica
Credit system and model access can be confusing
Customer support has been criticized for slow response times

Reviews