Comet vs Kagi Pricing (2026)

How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.

Comet Kagi
Starts at $19/mo $5/mo
Number of plans 4 4
Free plan
Free trial
Pricing model usage-based flat-rate

Open Source

$0/mo
  • Full AI observability & agent testing feature set
  • True OSS: same codebase as the hosted versions
  • Agent tracing & analysis
  • Test Suites & assertions
  • Agent Playground

Free Cloud

$0/mo
  • Up to 10 team members
  • 25k spans per month
  • 60-day data retention
  • Agent tracing & analysis
  • Test Suites & assertions
  • Agent Playground
  • Ollie coding harness trial

Pro Cloud

Popular
$19/mo
  • Up to 50 team members
  • 100k spans per month
  • 60-day data retention
  • Customizable monthly span limits
  • Customizable data retention periods

Enterprise

Custom
  • Unlimited team members
  • Custom usage plans
  • Flexible deployments
  • Service accounts and view-only users
  • Single sign-on
  • Dedicated support and SLAs
  • SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR compliance

Trial

$0/mo
  • Explore Kagi Search and Assistant with privacy-first tech
  • Enough to feel the difference
  • Upgrade anytime

Starter

$5/mo
  • Enough searches to get you going
  • Kagi Assistant with Quick mode and plenty of interactions

Professional

$10/mo
  • Unlimited Kagi Search
  • Kagi Assistant with Quick mode and a larger monthly usage allowance

Ultimate

$25/mo
  • Kagi Assistant with Research mode and flagship models
  • Highest level support for Kagi's mission

Comet vs Kagi FAQ

Which one is cheaper?
Kagi is the cheaper option, starting at $5/mo vs $19/mo for Comet.
Can I use either one for free?
Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
How do they charge?
Different approach here. Comet uses usage-based pricing, while Kagi goes with flat-rate. That changes the math depending on your team size and usage.
Which one is a better deal?
Depends on what you need. Comet: At $19/mo entry, they're positioning as the accessible alternative to heavier MLOps platforms — clearly going after teams that find tools like Weights & Biases or Arize too expensive or too complex for pure LLM tracing use cases. The academic free Pro tier signals they're also playing a long game on developer mindshare. Kagi: Kagi is a premium play in a category where the dominant competitors are literally free (Google, Bing). They're not competing on price — they're betting on a segment of privacy-conscious, quality-obsessed users willing to pay for an ad-free experience. $10/mo positions them as 'less than Netflix' to justify the switch.

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