
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
AI Side Panel records 0 monthly visits with — month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

Run ChatGPT, Claude, Gemini and DeepSeek side by side with any webpage
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chromewebstore.google.com | sider.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 0 (0) | 2.64M (2,644,740) |
| MoM Traffic Delta | 0 (—) | -314.2K (-10.6%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 0 | 1.7M |
| User Rating | 4.2 | 4.5 |
| Supported Platforms | Browser Extension | Website |

Run ChatGPT, Claude, Gemini and DeepSeek side by side with any webpage
Load ChatGPT, Claude, Gemini, Copilot and DeepSeek in a dockable panel next to the page you are reading, plus any custom service URL you add, with drag-and-drop toolbar ordering.
Right-click any passage and choose a service and an action such as Explain, Summarize or Translate; the prompt templates are fully editable.
Convert PDFs, Word files, presentations, spreadsheets and scanned documents into clean Markdown on your device, with OCR built in for image-based text.
Detect and replace sensitive patterns with placeholders before sending, and insert saved snippets into supported text fields by typing a slash and a short name.
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.

The agentic AI browser that reads your tabs, files, and screenshots as context
The agentic AI browser that reads your tabs, files, and screenshots as context
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.

Compare GPT, Claude, and Gemini answers side by side in one chat
Compare GPT, Claude, and Gemini answers side by side in one chat
Organize, search and export your AI chats across ChatGPT, Gemini, Claude and Grok
Organize, search and export your AI chats across ChatGPT, Gemini, Claude and Grok

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.

A Mac browser built for focus, with an AI companion called Airis
A Mac browser built for focus, with an AI companion called Airis