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Paid plans start at $19/mo. There's also a free plan.
Comet Opik has two $0 starting points: Open Source for teams self-hosting and Free Cloud for up to 10 team members, 25,000 spans per month and 60-day retention. Pro Cloud starts at $19 per month and includes up to 50 members and 100,000 spans per month. Additional Pro spans cost $5 per 100,000. Enterprise uses custom usage plans, and the pricing page does not list a monthly price. Ollie token purchases and the optional MLOps add-on can add costs.
01Every plan, line by line
| Plan | Billed annually | Billed monthly | Built for |
|---|---|---|---|
| Open Source | — | $0 | Teams self-hosting Opik |
| Free Cloud | — | $0 | Individuals and small teams |
| Pro Cloud | — | $19 | Teams needing higher usage |
| Enterprise | — | Quote | Organizations needing security and deployment options |
Add-ons and overages
- Additional spans on Pro: $5 per 100k spans
- Ollie coding harness: free trial, then purchase tokens; token prices are not published
- Optional MLOps platform add-on; price is not published
02What the plan grid doesn't tell you
Additional spans
Pro Cloud charges $5 per additional 100,000 spans. Estimate production volume and confirm how Comet handles usage above the plan allowance.
Ollie token purchases
The Ollie coding harness has a free trial followed by token purchases. Token prices are not published, so confirm expected spend before enabling it broadly.
MLOps add-on
The optional MLOps platform add-on has no published price. Ask Comet for a quote if you need experiment management alongside Opik.
Self-hosting operations
Open Source costs $0 for the plan, but self-hosting requires your team to provide and operate the underlying infrastructure.
03Which plan should you buy?
| If you are… | Get | Why |
|---|---|---|
| Local development or evaluation | Free Cloud | Use the hosted tier for up to 10 members, 25,000 spans monthly and 60-day retention. |
| Team with deployment control | Open Source | Self-host Opik at no plan charge and use its observability and agent-testing features. |
| Production team with higher usage | Pro Cloud | The $19 monthly plan includes up to 50 members and 100,000 spans, with paid additional spans and customizable limits. |
04Is Comet worth the money?
Opik is worth paying for when hosted LLM observability saves a team from building and maintaining its own trace, testing and evaluation workflows. Free Cloud is a useful starting point, but its 25,000 monthly spans, 10-member cap and 60-day retention may not suit a growing production workload. Pro Cloud starts at $19 per month, with additional spans priced at $5 per 100,000. Self-hosting can suit teams that need deployment control, provided they account for operating the infrastructure. Get quotes for Enterprise, Ollie tokens and MLOps before budgeting for them.
Comet pricing FAQ
Is Comet Opik free?
Yes. Open Source is $0 per month for teams self-hosting. Free Cloud is also $0 per month and includes up to 10 team members, 25,000 spans per month and 60-day data retention.
How much does Comet Pro Cloud cost?
Pro Cloud starts at $19 per month. It includes up to 50 team members, 100,000 spans per month and 60-day retention. Additional spans cost $5 per 100,000, and the plan allows customizable monthly span limits and retention.
Does Comet offer annual billing?
The pricing page lists monthly prices but does not state annual billing or annual discounts. Ask Comet whether annual payment is available and whether it changes the price before making a longer-term budget.
How much does Comet Enterprise cost?
Enterprise uses custom usage plans, and a monthly price is not listed. The plan includes unlimited team members, flexible deployments, SSO and dedicated support with SLAs. Contact Comet for pricing based on your deployment and usage needs.