Sider

Sider is an AI assistant that works across the web pages you are already on. It combines four things in one subscription: a chat layer that reads and explains whatever is in front of you, a browser agent that carries out multi step tasks on real websites, a customization layer that changes how a site looks and behaves, and a creation layer for images, video, slides and documents. Paid plans include a cloud computer so the agent keeps running when your own machine is closed. It suits knowledge workers, students and researchers who want one tool instead of several tabs. Chat runs on frontier models from several providers, so you can summarize long articles, translate web pages, PDFs and images, and have concepts explained in place. The browser agent compares prices while shopping, fills out forms, researches across several sites and triages a Gmail inbox. Additional tools include YouTube summaries, a document chat for PDFs, read aloud, data analysis, a writing assistant, audio transcription and an image generator and editor, with commercial use permitted. Individual pricing is published in four tiers, quoted in US dollars and billed yearly. Nano is US $8.33 per month, billed yearly at US $100, and includes temporary on demand access to a cloud computer. Lite is US $20.83 per month at US $250 yearly with a dedicated cloud computer. Pro is US $41.67 per month at US $500 yearly, and Max is US $83.33 per month at US $1000 yearly, each with a larger cloud machine. Team plans are offered separately. All plans include every feature; the tiers differ only in monthly credits and the size of the cloud computer.