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Side-by-side comparison · Research & Search

Gemini Deep Research vs Kagi

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Gemini Deep Research

4.0

From $4.99/mo

Best overall

Kagi

4.3

From $5/mo

Comparing 2 tools. Add one more if you like.

At a glance

Best value

Pick it if: Anyone who needs a thorough written briefing on a topic and would rather edit than research.

Kagi4.3
Best overallEasiest to use

Pick it if: People who search all day for work and are tired of ads and spammy results.

Kagi scores highest overall, but Gemini Deep Research gives you more for your money. Which one is right comes down to what you value most.

Overview

AttributeGemini Deep ResearchKagi
In one lineGoogle's agent that browses for minutes and writes a long, sourced report.A paid search engine with no ads or tracking, plus an AI assistant that cites sources.
Pricing modelFreemiumPaid
Starting price$4.99/mo$5/mo
Free plan Yes No
Works with Claude Code No Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeGemini Deep ResearchKagi
Overall rating4.04.3Winner
Ease of useHow quickly someone non-technical gets value from it.
4.0
4.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.0
4.5
Output qualityHow good the results are before you fix them.
4.0
4.5
Value for moneyWhat you get for the price, including the free plan.
4.5
3.5
Speed & reliabilityHow fast it is and how often it falls over.
3.5
4.5

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeGemini Deep ResearchKagi
Access & platform
Free plan Yes No
Mobile app Yes Yes
Desktop app No No
Browser extension Yes Yes
API access Yes Yes
Teams & business
Team workspace Yes Yes
Enterprise plan or SSO Yes No
Connects to other apps Yes Yes
Open source or self-hosted No No
AI abilities
Works with your files Yes Yes
Understands images Yes Yes
Makes images Yes No
Makes video Yes No
Writes code Yes Yes
Runs agents or automations Yes No
Learns your brand or style No–
Works in many languages Yes Yes
Capabilities score14/ 179/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeGemini Deep ResearchKagi
Plans

Free

Free

The occasional big question.

Trial

Free

Seeing the difference.

Google AI Plus

$4.99/mo

Light users who want a bit more headroom.

Starter

$5/mo

Light searchers.

Google AI ProOur pick

$19.99/mo

Anyone who runs a few reports a week or also uses NotebookLM.

ProfessionalOur pick

$10/mo

Anyone who searches every day.

Google AI Ultra

From $99.99/mo

Power users who want the highest limits across all of Google AI.

Ultimate

$25/mo

Heavy AI users.

Duo and Family

Duo $14/mo, Family $20/mo

Couples and households.

Which plan to pickTry the free plan first; it is enough to see the style of report you get. If you want it weekly, Google AI Pro is the pick because the Pro model writes better reports and the same subscription upgrades NotebookLM and Gemini in Gmail and Docs.Use the free trial for a week, then take Professional. 300 searches on Starter goes in a couple of weeks for most people. Only pay for Ultimate if you'd otherwise pay for an AI chat subscription, since it bundles the top models. Yearly billing saves 10%.

Key features

AttributeGemini Deep ResearchKagi
Standout features
  • Editable research plan
  • Multi-page reports
  • Your own files
  • Audio Overview
  • Canvas
  • Everywhere Gemini is
  • Ad-free results
  • Personalised ranking
  • Lenses
  • Kagi Assistant
  • Summaries
  • API and MCP

Pros and cons

AttributeGemini Deep ResearchKagi
Pros
  • You can edit the plan before it runs, so fewer wasted reports
  • Reads more pages than Perplexity and lists every source
  • Can include your Gmail and Drive in the research
  • Free plan includes it, and Pro is good value for Workspace users
  • Audio Overviews and Canvas make the output easy to share
  • No ads, sponsored results or tracking
  • You control which sites show up and where
  • AI assistant with a choice of top models
  • Fair pricing: unused months are credited back
Cons
  • Reports are long and often repetitive; plan to edit
  • Can take ten minutes or more per run
  • Free limits are not published as a number, so you find them by hitting them
  • Less careful about source quality than Perplexity, so weak sources slip in
  • It costs money, and Starter's 300 searches run out fast
  • Top AI models only on the $25 Ultimate plan
  • Local results like maps and shops are weaker than Google's
  • API and MCP use is billed separately from the search plans

Who each one is for

AttributeGemini Deep ResearchKagi
Best for
  • Industry and market reports
  • Supplier or vendor comparisons
  • Briefings for a meeting
  • Long-form background research
  • Everyday search without ads or tracking
  • Research where you want trustworthy sources
  • Hiding spammy or low-quality sites for good
  • Trying several AI models in one assistant
You'll find it used by
  • Consultants
  • Marketers
  • Founders
  • Google Workspace users
  • Researchers
  • Developers
  • Writers
  • Privacy-minded professionals

Questions people ask

Which is better, Gemini Deep Research or Kagi?

Kagi scores highest overall in our ratings (Gemini Deep Research 4.0/5 and Kagi 4.3/5). Gemini Deep Research is best for industry and market reports and supplier or vendor comparisons. Kagi is best for everyday search without ads or tracking and research where you want trustworthy sources.

Which is cheaper, Gemini Deep Research or Kagi?

Gemini Deep Research: There's a free plan, and paid plans start at $4.99/mo. Kagi: There's no free plan. Paid plans start at $5/mo.

Which is easier to use, Gemini Deep Research or Kagi?

Kagi rates highest for ease of use in our scores. People who search all day for work and are tired of ads and spammy results.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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