kitio.aiOpik vs OpenLIT
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Opik starts at $19/mo and OpenLIT starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Tracing and spans
- Evaluation metrics
- Agent optimizer
- Guardrails
- Framework integrations
- LLM and agent tracing
- Evals
- Guardrails
- Prompt management
- Cost and GPU monitoring
| Feature | Opik | OpenLIT |
|---|---|---|
| Best for | Comet's open-source platform for LLM tracing and evaluation | Open-source observability and evals for LLM apps and agents |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $19/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Comet | OpenLIT |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Both offer: Guardrails.
Pricing compared
Opik starts at $19/mo and OpenLIT starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Open Source
Free
- Self-hosted
- Full observability feature set
- Unlimited spans
Free Cloud
Free
- Up to 10 team members
- 25k spans per month
- 60-day data retention
Pro Cloud
$19/mo
- Up to 50 team members
- 100k spans per month
- $5 per extra 100k spans
Enterprise
Custom
- Unlimited team members
- Flexible deployments
- Single sign-on
- 2-hour response SLA
2 plans
Open source
Free
- Self-hosted
- Tracing, evals and prompt management
- Apache 2.0
Enterprise
Contact sales
- Role-based access control
- Audit logs
- Alerts to Slack and PagerDuty
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Opik
- Free and self-hostable
- Automatic prompt optimization
- Many integrations
- Smaller community than Langfuse
- Hosted plan limits vary
- Docs split with Comet ML
OpenLIT
- Free to self-host
- Built on OpenTelemetry
- Covers tracing, evals and prompts
- Hosted version is not yet available
- Enterprise features need a license
- Requires running your own infrastructure
Which one should you choose?
Choose Opik if you want:
- Free and self-hostable
- Automatic prompt optimization
- Many integrations
Watch out: smaller community than langfuse.
Choose OpenLIT if you want:
- Free to self-host
- Built on OpenTelemetry
- Covers tracing, evals and prompts
Watch out: hosted version is not yet available.
Opik vs OpenLIT FAQ
What is the difference between Opik and OpenLIT?
Opik: Comet's open-source platform for LLM tracing and evaluation. OpenLIT: Open-source observability and evals for LLM apps and agents. Both are models & apis tools.
Is Opik or OpenLIT cheaper?
Opik starts at $19/mo and OpenLIT starts at See pricing page. Check both pricing pages for current plans.
Do Opik and OpenLIT have free plans?
Opik: Yes. OpenLIT: Yes.
Who makes Opik?
Opik is made by Comet, based in United States.
Who makes OpenLIT?
OpenLIT is made by OpenLIT.
Which should I choose, Opik or OpenLIT?
Choose Opik if you value free and self-hostable and automatic prompt optimization. Choose OpenLIT if you value free to self-host and built on opentelemetry.