Sider

Sider starts as a Chrome and Edge extension, so you use it in the browser tab you already have open instead of a separate app.

Pricing is not something to count on here, so the useful question is what you get on the page.

Sider is an AI assistant that connects ChatGPT, Claude and Gemini, and lets you read, write and chat on any webpage.

You can chat about links, images, PDFs and GPTs, and the same sidebar works as a chatbot, an AI reader and an AI writer.

The category list also covers image tools such as background removal, upscaling and image generation, plus OCR, translation, grammar checking and YouTube summaries.

Group AI chat is part of the setup too.

Sider suits people who switch between models and do not want a different tab for each one.

Because it is built around the browser, it fits reading, research and writing tasks best.

The breadth is large, so expect to pick the few tools you actually need.