Comet OpikFreemium
An open-source platform for LLM evaluation, tracing, and production monitoring, from the team behind the Comet ML experiment-tracking tool.
Analytics comparison
Comet Opik vs Microsoft Clarity
Pricing, pros, cons, and ideal use cases — side by side.
Free session recordings, heatmaps, and AI-powered insights from Microsoft — no limits, no tiers.
At a glance
| Comet Opik | Microsoft Clarity | |
|---|---|---|
| Pricing | FreemiumOpen-source and free to self-host. Comet offers managed and enterprise plans. | FreeFree forever with no limits. |
| Category | Analytics | Analytics |
| Ideal for | Teams needing open-source LLM observabilityEnterprises with data-residency requirementsExisting Comet ML users | Any SMB with a websiteEcommerceBootstrapped Startups |
Pros & cons
Comet Opik
Pros
- Open-source tracing, evals, and monitoring
- Backed by an established ML tooling company
- Self-hostable for data residency
- Built-in and custom evaluation metrics
Cons
- Crowded category with strong alternatives
- Self-hosting adds operational work
- Choice often comes down to ecosystem fit
Microsoft Clarity
Pros
- Completely free, no caps
- AI behavior insights
- Heatmaps included
- GDPR/CCPA compliant
Cons
- Ties you to Microsoft ecosystem
- Less polished than Hotjar UI
- Integration with other tools is limited
Which should you choose?
Microsoft Clarity is the lighter-weight option (Free), while Comet Opik sits higher on the pricing ladder (Freemium). Comet Opik is built around teams needing open-source llm observability; Microsoft Clarity leans more toward any smb with a website. Shortlist the one whose strengths line up with your biggest constraint.