Braintrust
coding
Eval-first evaluation and observability platform for AI applications.
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Braintrust vs Opik
Compare Braintrust 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
Braintrust
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
Braintrust pros and cons
Deep, eval-first feature set with scorers, experiments, and statistical rigor
Strong CI/CD integration to catch regressions before deploy
Usage-based pricing with unlimited users, so no per-seat penalty
Powerful playground for prompt iteration and comparison
Not open source; source-available and hosted model
Self-hosting locked to the Enterprise tier and a license key
Big price jump from free to $249 per month
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
Braintrust
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Braintrust
Selected using free-plan availability and engagement signals.
Best for
Braintrust
- systematic LLM evaluation
- CI/CD quality gates
- prompt comparison and iteration
- production tracing to eval loops
- Teams making evaluation a first-class part of development
Opik
- LLM evaluation
- agent tracing
- prompt management
- production LLM monitoring
- Teams wanting open-source eval plus tracing
FAQ
Is Braintrust 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?
Braintrust and Opik offer a free plan based on current Toolglade data.