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Sider AI

AI sidebar for your browser — chat, summarize, translate, and generate right on any webpage

★★★★½

4.5(18,300 reviews)

freemiumDR 71Free (limited queries/day). Pro $4.99/mo or $39.99/yr (unlimited GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro).View full pricing →

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About Sider AI

Sider AI is a browser extension and AI sidebar that adds ChatGPT, Claude, Gemini, and other AI models directly into your browsing experience. It lets you highlight text on any webpage and instantly get explanations, translations, summaries, or ask questions — without switching tabs. Sider also offers a full chat interface, PDF reader, AI search, image generation, and a writing assistant that works inside Gmail, Google Docs, and other web apps. It's one of the most popular AI browser extensions with 4M+ users.

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Key Features

✓Multi-model chat (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, DeepSeek R1)

✓Page summarization — one click to summarize any article

✓Text highlight actions (explain, translate, improve, tone change)

✓In-browser PDF reader with AI chat

✓AI Search (real-time web answers with sources)

✓Image generation from sidebar

✓Writing assistant inside Gmail and Google Docs

✓YouTube video summarization and Q&A

✓4M+ active users across Chrome, Edge, Safari

Sider AI Pros & Cons

✅ Pros

+Access to ALL major AI models in one sidebar ($5/mo)
+Highlight-to-explain is genuinely faster than copying to ChatGPT
+YouTube summarization is a standout feature
+Writing assistant in Gmail is seamlessly integrated
+Free tier is usable for casual research

⚠️ Cons

−Can slow down browser slightly when active
−Free tier query limits hit quickly for heavy users
−Some users prefer single-model focus (just ChatGPT) over multi-model
−UI can feel cluttered with so many features

Who Is Sider AI Best For?

👤Researchers who read a lot of articles and need quick summaries

👤Students learning new topics who want instant explanations

👤Writers who want AI assist inside Gmail and Docs without tab-switching

👤Power users who want to compare GPT-4o vs Claude responses side by side

Tags

browser-extensionchatgptsidebarproductivitysummarizationtranslationwriting

🏷️

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