Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. Siket records 1,559 monthly visits with +32% growth and Freemium pricing.
AI sidebar and browser agent for reading, writing and research
Your new tab becomes a keyboard-first workspace — tasks, tabs, focus, notes and an AI agent.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sider.ai | siket.app |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.64M (2,644,740) | 1.56K (1,559) |
| MoM Traffic Delta | -314.2K (-10.6%) | +378 (+32%) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🌐 Global (—) |
| Direct Visits / mo | 1.7M | 455 |
| User Rating | 4.5 | 4.3 |
| Supported Platforms | Website | Website |
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.
Your new tab becomes a keyboard-first workspace — tasks, tabs, focus, notes and an AI agent.
One list, four ways to see it. Switch between list, board, table, and calendar with number keys 1–4 without moving a single task.
Save a research trail — a launch, a bug hunt, a reading list — as a tab session and restore the whole set with one click instead of rebuilding bookmarks.
Tasks live in Inbox, Today, Next week, project lists, and personal lists. Details stay folded inside each task until you open it, keeping the list short.
A quiet Pomodoro-style focus timer and a keyboard-first command palette keep deep work moving without reaching for the mouse.
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.
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
The AI browser that reads between your tabs
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
One browser agent that combines every major AI model with web automation
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
Summarize, bookmark and write with AI right in your browser
Summarize, bookmark and write with AI right in your browser
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.
One AI-powered workspace for tasks, calendars, notes and meetings
One AI-powered workspace for tasks, calendars, notes and meetings
