Comet Pricing (2026)

Comet splits into two tracks: a free self-hosted open source option for teams who want full control, and a cloud path that starts free before jumping to a flat $19/mo Pro tier, with Enterprise moving to custom quotes — so the real value metric only kicks in once you factor in the hidden usage or seat mechanics behind that custom tier.

From $19/mo 4 plans hybrid Free plan Free trial Best Comet alternatives →
Open Source
$0/mo
Free Cloud
$0/mo
Pro Cloud Popular
$19/mo
Enterprise
Contact Sales
Verified Aug 23, 2026 Official pricing page
Screenshot of Comet's pricing page showing its plans and prices
Their pricing page, captured Aug 23, 2026

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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

Contact Sales
  • 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

Does Comet have a free plan?

Yes: the Open Source plan is free forever, not a time-limited trial. When you outgrow it, paid plans start at $19/mo. Paid tiers also come with a free trial.

What the free plan includes

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

AI Pricing Analysis

Pricing Model

Comet splits into two tracks: a free self-hosted open source option for teams who want full control, and a cloud path that starts free before jumping to a flat $19/mo Pro tier, with Enterprise moving to custom quotes — so the real value metric only kicks in once you factor in the hidden usage or seat mechanics behind that custom tier.

Tier Strategy

Open Source is for teams with the infra chops to self-host and no budget to spend, Free Cloud is the low-commitment trial-by-fire for individuals or small teams testing Opik in production, and Pro Cloud is where a team formalizes usage once they need reliability and support without an enterprise contract. The jump to Enterprise happens when compliance, SSO, or scale requirements outpace what a flat $19/mo plan can reasonably cover.

Competitive Positioning

At $19/mo for Pro, Comet undercuts most enterprise-first MLOps and LLM observability tools that gate everything behind a sales call — this is a land-and-expand play aimed at developers and small teams who'd otherwise bounce off a 'contact us' wall.

Growth Lever

The paywall likely locks in team collaboration, higher usage/trace volume, and support SLAs rather than core features, given the low Pro entry price — expansion is probably usage-driven (traces, experiments, or data volume) until a team's scale forces a custom Enterprise negotiation.

Comet Pricing FAQ

How much does Comet cost?
Paid plans start at $19/mo. There's also an Enterprise tier with custom pricing. You can get started on the free plan before committing.
Is there a free plan?
Yes. The "Open Source" plan is free forever, not just a trial. You get full ai observability & agent testing feature set, true oss: same codebase as the hosted versions, agent tracing & analysis — plus 2 more features. It's enough to evaluate the product before upgrading.
Can I try it before paying?
Yes — there's a free trial.
How does the pricing work?
Comet splits into two tracks: a free self-hosted open source option for teams who want full control, and a cloud path that starts free before jumping to a flat $19/mo Pro tier, with Enterprise moving to custom quotes — so the real value metric only kicks in once you factor in the hidden usage or seat mechanics behind that custom tier.
Which plan makes sense for me?
Open Source is for teams with the infra chops to self-host and no budget to spend, Free Cloud is the low-commitment trial-by-fire for individuals or small teams testing Opik in production, and Pro Cloud is where a team formalizes usage once they need reliability and support without an enterprise contract. The jump to Enterprise happens when compliance, SSO, or scale requirements outpace what a flat $19/mo plan can reasonably cover.

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