Opik
coding
Open-source LLM evaluation, tracing, and observability by Comet.
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Opik vs Helicone
Compare Opik and Helicone side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
Helicone
coding
Open-source LLM observability and AI gateway in one line of code.
Pricing
Free plan
Rating
—
Votes
0
Feature comparison
Feature
Opik
Helicone
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
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
Helicone pros and cons
Extremely easy integration via a one-line base-URL swap
Open source under Apache 2.0 and free to self-host
Tiny Docker image that runs almost anywhere
Gateway features like caching, failover, and rate limiting cut cost and improve reliability
Product is in maintenance mode after the Mintlify acquisition, with no roadmap
Long-term hosted-service viability is uncertain and migration may be needed
Usage-based overages mean the Pro price is a floor, not a cap
Which one should you choose?
Best overall signal
Opik
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Opik
Selected using free-plan availability and engagement signals.
Best for
Opik
- LLM evaluation
- agent tracing
- prompt management
- production LLM monitoring
- Teams wanting open-source eval plus tracing
Helicone
- quick LLM request logging
- self-hosted observability
- gateway caching and failover
- cost and usage monitoring
- Teams wanting simple, cheap LLM logging
FAQ
Is Opik better than Helicone?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Opik and Helicone offer a free plan based on current Toolglade data.