Side by side
Datadog vs Langfuse
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
See inside any stack, any app, anywhere.
Trace, evaluate, and improve AI agents with one open platform.
Primary task
AI observability
AI observability
Pricing
Freemium · Free + from $15/mo
Freemium · Free + from $29/mo
Pricing details
Free + from $15/mo
Free + from $29/mo
Billing cycle
Monthly
Monthly
API access
Not documented
Not documented
Platforms
Web
Web
Integrations
Kubernetes
Docker
Source rating
No rating recorded
No rating recorded
Catalog views
58
104
Estimated monthly traffic
3.9M
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Catalog imported
30 Aug 2026
29 Aug 2026
Listed strengths
- End-to-end visibility
- Infrastructure monitoring
- Network monitoring
- Container monitoring
- Cloud cost management
- Open platform
- Supports any language
- Observability feature
- Evaluation feature
- Prompt Management feature
Listed limitations
- Costly for small businesses
- Steep learning curve
- Excessive features
- Overwhelming user interface
- Limited customization options
- Requires OTel instrumentation
- May have high latency
- Reliance on external integrations
- Complex for new users
- No direct model training