Langfuse
coding
Open-source LLM observability and evaluation
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Langfuse vs Opik
Compare Langfuse and Opik side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Opik
coding
Open-source LLM evaluation, tracing, and observability by Comet.
Pricing
Free plan
Rating
—
Votes
0
Feature comparison
Feature
Langfuse
Opik
Category
coding
coding
Pricing
Free plan
Free plan
Free plan
API access
Mobile app
Browser extension
Team collaboration
Custom training
Self-hosted option
Offline mode
Multi-language support
Langfuse pros and cons
Open source with nearly all features MIT-licensed
Self-host the full product free, no seat or usage caps
Framework-agnostic (works with or without LangChain)
Strong tracing, prompt management, and evaluation
Self-hosting still requires running infrastructure
Enterprise compliance features are commercial
Cloud Pro tier jumps significantly in price
Opik pros and cons
Full platform is Apache-2.0 and free to self-host
Combines tracing and evaluation in one tool
LLM-as-a-judge and many automated metrics
Fast-growing, widely adopted open-source project
Crowded, competitive category
Self-hosting requires running infrastructure
Managed cloud limits (spans, seats) on lower tiers
Which one should you choose?
Best overall signal
Langfuse
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Langfuse
Selected using free-plan availability and engagement signals.
Best for
Langfuse
- LLM tracing
- Prompt management
- Evaluations
- Self-hosted observability
- Teams wanting open-source LLM observability
Opik
- LLM evaluation
- agent tracing
- prompt management
- production LLM monitoring
- Teams wanting open-source eval plus tracing
FAQ
Is Langfuse better than Opik?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Langfuse and Opik offer a free plan based on current Toolglade data.