A Sider alternative for focused summarization.

Sider is a multi-model side-panel AI assistant that bundles chat, summarization, writing, translation, and PDF analysis in one tiered subscription. Many readers come looking for an alternative when they want predictable credit accounting and the option to use their own AI key for unlimited summarization. Reduz is intentionally smaller: focused summarization with transparent credit accounting (100 monthly hosted credits, no card, visible balance), your AI requests going directly from your browser when you bring your own AI key, and local history instead of vendor-account history.

Where Reduz fits

Use Reduz when predictable credit accounting matters more than a broad assistant panel, and when you want your own AI key going directly from your browser to your provider for unlimited summarization.

Reduz is a privacy-leaning alternative for readers who want their summary history on their own device, the option to use their own AI provider key, and the same in-tab workflow on YouTube videos, PDFs, articles, and webpages — not just one source type.

Reduz vs Sider, side by side

The categories below cover what most readers compare when they evaluate Sider alternatives — source coverage, privacy approach, your own AI key support, history and exports, and price.

For a longer head-to-head with sample outputs and verdict, read the Sider vs Reduz comparison.

The case for Reduz over Sider

Reduz is the right fit when your reading workflow spans multiple source types and you want the data path to be predictable. It runs from the active Chrome tab with click-only permission — the extension can read a page only when you click it. When you bring your own AI key, source text goes directly from your browser to your selected AI provider, with no Reduz server in between. Summary history stays on your device, with optional encrypted backup if you want a copy off-device.

Sider is the right fit when its specific strength matches your job — see the side-by-side table above for the exact tradeoffs.

Frequently asked questions