Key features
- AI sidebar for chatting with GPT, Claude, Gemini, and other models
- in-context assistant for articles, search results, and social posts
- group chat mode to compare answers from multiple models at once
- prompt manager for saving and deploying prompts anywhere on the web
- cross-platform availability including desktop and mobile
- AI-assisted writing and reading tools within the sidebar
What Sider does
Sider is a Chrome extension that puts an AI sidebar on any webpage, letting you chat with models like GPT, Claude, and Gemini without leaving the tab you're on. It's built as an in-context assistant, so it can help while you're reading an article, replying to a post, or searching, instead of requiring a separate chat window.
Sider free vs paid
Sider offers a free tier that gives access to its sidebar and multi-chatbot support, with paid plans unlocking more usage, additional models, and extra features like advanced data analysis or document creation. Which models and limits are included on the free tier can change, so check the current plan details in the extension before relying on a specific one.
Is Sider safe?
Because Sider reads page context to act as an in-context assistant, it needs broad permission to access the content of pages you visit. That's necessary for features like summarizing an article or replying to a tweet from the sidebar, so it's worth knowing before installing if you're cautious about extensions with wide page access.