Langtrace
llm-observability
Open-source, OpenTelemetry-based observability for LLM applications
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Langtrace vs Opik
Compare Langtrace and Opik side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Opik
llm-observability
Open-source LLM evaluation, tracing, and observability by Comet.
Pricing
Free plan
Rating
—
Votes
0
Feature comparison
Feature
Langtrace
Opik
Category
llm-observability
llm-observability
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
Langtrace pros and cons
Fully open source and self-hostable
Built on the OpenTelemetry standard
Traces export to any observability stack
Supports Python and TypeScript
Smaller ecosystem than larger competitors
Fewer turnkey enterprise features
Evaluations can require manual effort
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
Langtrace
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Langtrace
Selected using free-plan availability and engagement signals.
Best for
Langtrace
- LLM app tracing
- Cost and latency monitoring
- Vendor-neutral observability
- LLM app developers
- RAG engineers
Opik
- LLM evaluation
- agent tracing
- prompt management
- production LLM monitoring
- Teams wanting open-source eval plus tracing
FAQ
Is Langtrace 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?
Langtrace and Opik offer a free plan based on current Toolglade data.