OpenGPTs records 0 monthly visits with — month-over-month growth and Free pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.
Open-source GPTs manager and side-panel AI copilot for your browser
AI sidebar and browser agent for reading, writing and research
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chromewebstore.google.com | sider.ai |
| Pricing Model | Free | 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 | 3.8 | 4.5 |
| Supported Platforms | Browser Extension | Website |
Open-source GPTs manager and side-panel AI copilot for your browser
Keep an AI assistant docked beside any webpage so you can ask questions and get answers without switching tabs.
Capture on-screen content and have the assistant dissect and explain images, charts or UI without manual uploads.
Highlight any passage and get a concise summary to speed up reading and research.
Question several GPTs at once and compare their answers side by side for a broader view of one topic.
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.
One app to chat with GPT, Claude, Gemini and hundreds of other AI models
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.
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
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.
One privacy-first AI client for GPT, Claude, Gemini and more
One privacy-first AI client for GPT, Claude, Gemini and more
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
The best frontend for AI.
Free / Open-sourceOpen-source frontend stack for building AI agents and copilots inside your own product
Free / Open-sourceOpen-source frontend stack for building AI agents and copilots inside your own product
Compare GPT, Claude, and Gemini answers side by side in one chat
Compare GPT, Claude, and Gemini answers side by side in one chat
A private Chromium browser with a built-in AI agent and offline LLM
A private Chromium browser with a built-in AI agent and offline LLM
