Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok vs Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector
Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok and Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector 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; Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector sits at about 5M users with 4.7 stars.
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.
Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector
4.7Write better emails, essays and messages with Quillbot's Grammar Checker, Paraphrasing Tool, Generative AI, Summarizer and more!
Side-by-side comparison
| Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok | Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector | |
|---|---|---|
| Rating | 4.9 / 5 | 4.7 / 5 |
| Reviews | 114,200 | 5,800 |
| Users | ~5M+ | ~5M+ |
| Pricing | Free | Free |
| Category | Productivity | |
| Developer | Vidline Inc. | QuillBot (Course Hero), LLC |
| Last updated | 2026-08-24 | 2026-08-24 |
| Best for | ChatGPT, DeepSeek, Gemini, Claude, Grok all in one AI sidebar, for AI search, read, and write. | Write better emails, essays and messages with Quillbot's Grammar Checker, Paraphrasing Tool, Generative AI, Summarizer and more! |
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 Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector 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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