ChatGPT vs Merlin AI
ChatGPT and Merlin AI both compete in the same corner of the Chrome Web Store (ai), but they are built for different users. ChatGPT has roughly 4M users and a 2.9-star average; Merlin AI sits at about 900K users with 4.8 stars. On pricing, ChatGPT is free while Merlin AI is freemium.
Merlin AI
4.8One AI assistant for summarising, writing and answering on any page.
Side-by-side comparison
| ChatGPT | Merlin AI | |
|---|---|---|
| Rating | 2.9 / 5 | 4.8 / 5 |
| Reviews | 631 | 8,800 |
| Users | ~4M+ | ~900K+ |
| Pricing | Free | Freemium · From $14.25/mo |
| Category | Productivity | AI |
| Developer | OpenAI | Foyer Labs |
| Last updated | 2026-09-01 | 2026-07-05 |
| Best for | Control your browser with ChatGPT. | Generalists who want a single AI sidebar instead of five separate AI extensions. |
Final recommendation
ChatGPT wins on adoption, but Merlin AI scores higher with reviewers — start there if ratings matter more.
Frequently asked questions
Can I install ChatGPT and Merlin AI at the same time?
Yes, Chrome runs them independently. Keep both only if they do different jobs; if they overlap, pick one, because each active extension adds memory use, page scripts and another set of permissions.
Where do the ratings and install numbers come from?
From each extension's public Chrome Web Store listing. They can lag the live store slightly, and a dash means the figures have not been synced yet.
Keep researching
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