Your AI
judges itself.
Autonomously.

LLM-as-a-judge evaluation API. Send a prompt, response, and criteria — get back a structured quality score with reasoning. Every eval stored for trend analysis.

Try the Live Demo ↓

eval://production — live

coherence

gpt-4o-mini

4.7

factual_accuracy

claude-3.5-sonnet

4.2

instruction_following

gemini-2.0-flash

4.8

safety_alignment

llama-4-scout

3.1

1-5 scale · LLM-as-judge 765 evals

Live Demo

Run a real evaluation against the API. Scores 1-5 with structured reasoning.

Prompt (what the AI was asked)

Response (what the AI said)

Criteria (what makes a good response)

Evaluation Complete

The problem

Every prompt change is a dice roll. Every model update, a leap of faith.

⚠

Silent regressions

A model update ships Tuesday. Thursday, your chatbot starts hallucinating. You find out Monday from a customer complaint.

⏱

Manual eval pipelines

Your team spends 20+ hours a week writing test cases, running evaluations, comparing results. Time that should go to building product.

🔍

Wrong metrics

Generic benchmarks tell you nothing about your use case. MMLU scores don't predict whether your support agent handles refunds correctly.

API Quick Start

# Evaluate an LLM response
curl -X POST https://gauge-jiez.polsia.app/api/evaluate \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Explain quantum computing",
    "response": "Quantum computing uses qubits...",
    "criteria": "Clear, accurate, accessible"
  }'

# Response
{
  "success": true,
  "evaluation": {
    "score": 4,
    "reasoning": "Clear explanation with good analogies...",
    "criteria_met": ["Clear", "Accessible"],
    "criteria_missed": ["Could be more detailed"],
    "model": "gpt-4o-mini",
    "eval_duration_ms": 1240
  }
}

Capabilities

⚖

LLM-as-Judge

Structured 1-5 scoring using frontier models. JSON output with reasoning, criteria met, and criteria missed.

📊

History & Analytics

Every evaluation stored. Track quality over time. Get score distributions and trend data via the stats API.

🎯

Custom Criteria

Define your own evaluation dimensions — accuracy, tone, completeness, safety. Score what matters to your product.

⚡

Fast & Lightweight

Simple REST API. No SDKs to install, no agents to configure. One POST request, one structured result.

Your AIjudges itself.Autonomously.