Kagi Summarize vs Sidenote

Kagi Summarize creates summaries of web pages, videos and podcasts when a transcript is available. It accepts URLs for web pages, PDFs, PPTX files, MP3s and videos. Output choices include headlines, brief summaries, digests, medium or long summaries, bullet points and ELI5; users can also translate a summary with Kagi Translate. Kagi lists Cecil as consumer-grade, Agnes as consumer-grade and Muriel as enterprise-grade; Agnes and Muriel are available through the browser extension or API. Summarize is accessible in Kagi search results, through the!sum Bang, in Orion on Apple devices, and in Chrome and Firefox extensions. The API supports text pages, PDFs, PPTX and DOCX files, MP3/WAV audio, experimental YouTube URLs, and scanned PDFs or images using OCR. API requests are limited to 1 MB and require a Kagi account and API credits. A trial includes 100 searches and 100 AI interactions with standard models. Starter costs $5 per month plus tax; there is no free plan.

Sidenote is a browser-based AI reading assistant for asking questions about documents and tracing answers back to their source passages. Select a citation to jump to and highlight the cited text. It can summarize and explain documents, build glossaries, search files, and organize material with notes, highlights, tags, starred documents, and multi-document collections. It reads browser-rendered PDFs, including scanned PDFs with OCR, and accepts PDF, DOCX, PPTX, TXT, MD, MDX, and RTF uploads. Dedicated integrations include Confluence, Notion, Google Docs, Slack canvases, SharePoint, and OneDrive. Extensions are listed for Chrome, Edge, and Firefox; Opera is coming soon. The free plan allows 3 documents per month, while Pro is £10/mo billed monthly. A 7-day Pro trial requires no card and limits users to 10 documents, 20 summaries, and 10 chat turns. Users can choose to keep documents while their account is open or discard them, which purges a document within 24 hours. Sidenote says content is not used to train AI models, but it is not yet SOC 2 certified.