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Head-to-head · AI Summarizers

Kagi Summarize vs Sidenote

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Kagi Summarize #1 in AI Summarizers 9.2/10 Paid ✓ 2 of 3 features Visit Kagi Summarize
Sidenote #4 in AI Summarizers 7.9/10 Free plan · 7-day trial Free planFree trial✓ 3 of 3 features Visit Sidenote

Kagi Summarize leads on 0 checks, Sidenote on 1, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreKagi Summarize · 9.2/10
  • Free planonly Sidenote
  • Free trialonly Sidenote
  • Most featuresSidenote · 3 of 3

Kagi Summarize scores higher on our rubric for ai summarizers: 9.2 against 7.9 out of 10; our editors rank them #1 and #4.

Sidenote offers free plan; Kagi Summarize doesn't.

Kagi Summarize is the better fit for power users needing broad inputs and API access. Sidenote is the better fit for teams needing cited summaries and integrations.

  • Kagi Summarize fits best

    Power users needing broad inputs and API access

  • Sidenote fits best

    Teams needing cited summaries and integrations

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Kagi Summarize 9.2/10 Visit ↗ Sidenote 7.9/10 Visit ↗
At a glance
Editor score 9.2 7.9
Ranking #1 in AI Summarizers #4 in AI Summarizers
Best for Power users needing broad inputs and API access Teams needing cited summaries and integrations
Pricing model Paid Free plan + paid
Starting price $5/mo £96/yr
Free plan — ✓ (best)
Free trial — 7 days
Deployment Cloud, Mobile, Browser extension Cloud, Browser extension
Platforms Web, iOS, Android, Chrome extension Web, Chrome extension
Integrations 3 integrations 9 integrations
Features Kagi Summarize 2/3 · Sidenote 3/3
Document upload Not checked yet ✓ (best)
Webpage summaries ✓ ✓
Transcript summaries ✓ ✓
Specs
Input limit Not checked yet Not checked yet
Summary length control Not checked yet Short
Export formats Not checked yet Markdown
Our review
Pros
  • Handles webpages, office documents, PDFs, audio, video, and podcasts
  • Offers paragraph, bullet, headline, ELI5, and length-based summaries
  • Available on web, mobile, browser extension, Orion, and API
  • Clickable citations connect summaries to source passages.
  • Supports PDFs, Office files, webpages and connected documents.
  • Integrates with Confluence, Notion, SharePoint, Slack and more.
Cons
  • No permanent free plan; the Trial is limited to 10 summaries
  • Paid tiers bundle Kagi Search and Assistant features with summarization
  • API usage is priced separately from the monthly membership plans
  • Free plan limits monthly documents, summaries, explanations and chat turns.
  • OCR and Word and PowerPoint support begin on the Pro plan.
  • Shared collections and SAML SSO require a Team plan.
Our verdict

Kagi Summarize is a multi-format AI summarizer for people who need more than webpage summaries. It processes webpages, PDFs, PPTX and DOCX files, audio, videos, podcasts with transcripts, YouTube URLs, and scanned PDFs or images through…

Read the review →

Sidenote is an AI reading assistant and document summarizer available through a Chrome extension and web dashboard. It is designed for students, researchers, analysts, legal teams, consultants and organizations working with internal…

Read the review →
  1. Kagi SummarizeAI Summarizers 9.2Paid
  2. SidenoteAI Summarizers 7.9Free plan · 7-day trial

Strengths and trade-offs

  • Kagi Summarize — where it wins

    • Handles webpages, office documents, PDFs, audio, video, and podcasts
    • Offers paragraph, bullet, headline, ELI5, and length-based summaries
    • Available on web, mobile, browser extension, Orion, and API

    Where it doesn't

    • No permanent free plan; the Trial is limited to 10 summaries
    • Paid tiers bundle Kagi Search and Assistant features with summarization
    • API usage is priced separately from the monthly membership plans

  • Sidenote — where it wins

    • Clickable citations connect summaries to source passages.
    • Supports PDFs, Office files, webpages and connected documents.
    • Integrates with Confluence, Notion, SharePoint, Slack and more.

    Where it doesn't

    • Free plan limits monthly documents, summaries, explanations and chat turns.
    • OCR and Word and PowerPoint support begin on the Pro plan.
    • Shared collections and SAML SSO require a Team plan.

More comparisons

All AI summarizers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update