Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok vs Merlin AI
Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok and Merlin AI both compete in the same corner of the Chrome Web Store (ai), but they are built for different users. Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok has roughly 5M users and a 4.9-star average; Merlin AI sits at about 900K users with 4.8 stars. On pricing, Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok is free while Merlin AI is freemium.
Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok
4.9ChatGPT, DeepSeek, Gemini, Claude, Grok all in one AI sidebar, for AI search, read, and write.
Merlin AI
4.8One AI assistant for summarising, writing and answering on any page.
Side-by-side comparison
| Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok | Merlin AI | |
|---|---|---|
| Rating | 4.9 / 5 | 4.8 / 5 |
| Reviews | 114,200 | 8,800 |
| Users | ~5M+ | ~900K+ |
| Pricing | Free | Freemium · From $14.25/mo |
| Category | Productivity | AI |
| Developer | Vidline Inc. | Foyer Labs |
| Last updated | 2026-08-24 | 2026-07-05 |
| Best for | ChatGPT, DeepSeek, Gemini, Claude, Grok all in one AI sidebar, for AI search, read, and write. | Generalists who want a single AI sidebar instead of five separate AI extensions. |
Final recommendation
Pick Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok — it leads on both installs and review scores.
Frequently asked questions
Can I install Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok 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.
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