Monitor Your AI App with Verified Experts
Integrate with Langfuse. Get Public Scorecards. Build User Trust.
GrandJury adds a human evaluation layer to your AI monitoring. Verified domain experts (doctors, lawyers, engineers) evaluate your AI outputs, results sync to your Langfuse dashboard, and public evaluation pages demonstrate transparency.
The Human Evaluation Gap
Automated metrics and internal testing aren't enough for AI applications with real-world impact.
Automated Metrics Miss Subtle Failures
BLEU scores and perplexity can't detect medical misinformation, legal errors, or harmful advice. You need domain experts.
Internal Testing Doesn't Scale
Your team can't evaluate every prompt, every edge case, every domain. You need external expert evaluators.
Users Don't Trust Black Boxes
"AI-powered" claims aren't enough anymore. Users want proof. Public evaluation by verified experts builds trust.
How It Works
Integrate
Connect your existing Langfuse setup with GrandJury. Install grandjury.js, configure your project on our platform.
AI Jury Evaluate
Verified domain experts evaluate your AI outputs. Medical AI → doctors, Legal AI → lawyers, Code AI → senior engineers.
Results Published
Evaluation scores sync to your Langfuse dashboard. Public evaluation page shows transparency. Build user trust.
Why Choose GrandJury
Langfuse Integration
Works alongside your existing monitoring stack. Not a replacement - an enhancement layer.
Verified Expert Evaluators
Domain-matched professionals with credentials. Not random crowd workers.
Public Evaluation Pages
Transparent scorecards showing AI quality. Build user trust through openness.
Detailed Failure Documentation
Not just scores - expert commentary explaining what failed and why it matters.
Domain-Matched Evaluators
Medical AI evaluated by doctors. Legal AI by lawyers. Code by engineers.
GrandJury Verified Badge
Display verification badge on your product after sufficient quality evaluations.
We Use Our Own Platform
GrandJury evaluates major LLMs across medical, safety, and code domains. Here's what your evaluation page could look like:
GPT-4 Medical Evaluation
15 verified medical professionals, 200+ evaluations documented
View Evaluation Page →Claude Safety Evaluation
12 verified safety researchers, 150+ evaluations documented
View Evaluation Page →Gemini Code Evaluation
20 verified senior engineers, 300+ evaluations documented
View Evaluation Page →This is what your AI's evaluation page looks like. Transparent. Credible. Trustworthy.
Who Uses GrandJury
Medical AI Developers
Doctors evaluate medical advice accuracy, safety, and compliance with healthcare standards.
Legal Tech Companies
Lawyers evaluate legal reasoning, contract analysis, regulatory compliance advice.
Financial AI Platforms
Certified Financial Planners evaluate investment advice, risk analysis, financial guidance.
Code Generation Tools
Senior engineers evaluate code security, best practices, bug detection, documentation quality.
Langfuse Users
Add human evaluation layer to existing LLM monitoring setup without replacing your current stack.
Pricing
Currently in beta - free for early adopters
Volunteer Evaluations
Free
AI Jury evaluate your outputs voluntarily. Evaluation timing depends on volunteer availability.
- ✓ Langfuse integration
- ✓ Public evaluation page
- ✓ Verified expert evaluators
- ✓ Detailed failure documentation
Paid Evaluations
TBD
Pay evaluators directly for faster turnaround times and dedicated evaluation capacity.
- ✓ Everything in Free tier
- ✓ Priority evaluation queue
- ✓ SLA guarantees
- ✓ Custom evaluation criteria
Enterprise
Custom
Dedicated evaluator teams, custom workflows, private evaluation pages, white-label options.
- ✓ Everything in Paid tier
- ✓ Dedicated evaluator team
- ✓ Private evaluation pages
- ✓ White-label options
Common Questions
Does this replace Langfuse?
No! GrandJury works alongside your existing Langfuse monitoring. We add a human evaluation layer, not replace your automated metrics.
How long does evaluation take?
During beta (volunteer evaluations), timing depends on AI Jury availability - typically days to weeks. Future paid tiers will offer faster turnaround with SLA guarantees.
Are evaluations really public?
Yes. Transparency is our core mission. Your AI's evaluation page is publicly accessible, showing expert evaluations with evaluator names and credentials.
Can I use GrandJury without Langfuse?
Currently, Langfuse integration is our primary offering. We're exploring standalone options for future releases.
How do I display 'GrandJury Verified' badge?
After sufficient quality evaluations, we provide badge assets and embed code. Display on your product landing page, marketing materials, or documentation.
Who are the evaluators?
Verified domain experts with professional credentials: doctors for medical AI, lawyers for legal AI, senior engineers for code AI, etc. All evaluators undergo verification.
Ready to Add Human Evaluation to Your AI?
Start building user trust through transparent expert evaluation. Free during beta.
Questions? Email hello@grandjury.xyz