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

Explain, proofread, reply to, and chart any text with ChatGPT
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | sider.ai | chrome.google.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 2.64M (2,644,740) | 0 (0) |
| MoM Traffic Delta | -314.2K (-10.6%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🌐 Global (—) |
| Direct Visits / mo | 1.7M | 0 |
| User Rating | 4.5 | 1.7 |
| Supported Platforms | Website | Browser Extension |
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.

Explain, proofread, reply to, and chart any text with ChatGPT
Highlight any confusing passage and ask the model to explain it in plain language.
Get grammar, spelling, and clarity suggestions on a selection so your writing reads correctly.
Generate a natural-language reply to a message or email based on the text you selected.
Turn selected data or list text into a simple chart to visualize it quickly.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI'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.

Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.

AI grammar, spelling and style checker for 30+ languages
AI grammar, spelling and style checker for 30+ languages

All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
One-click AI assistant for browsing, writing and research
One-click AI assistant for browsing, writing and research
One browser agent that combines every major AI model with web automation

AI writing assistant with autocomplete, research, and a Chrome extension
AI writing assistant with autocomplete, research, and a Chrome extension

AI grammar checker and writing assistant for teams and professionals
AI grammar checker and writing assistant for teams and professionals

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.

AI proofreading that shows every change as a track-change you can accept or reject
AI proofreading that shows every change as a track-change you can accept or reject