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AI Model Evaluation Platform

Compare AI Models
Side-by-Side

Stop guessing. Start measuring with real data.

Test GPT-5.2, Claude Opus 4.5, Gemini 3 and 15+ LLMs with your prompts.See quality, speed, and cost metrics instantly. Free, no signup required.

Real-time comparison
15+ AI models
Accuracy scoring
Golden datasets
Free, no signup

Agent Configuration

Classification
A customer says: 'Your product ruined my day, I want a refund NOW!' - Classify the sentiment and urgency (1-5).
Sentiment: Negative, Urgency: 5
Structured Output
Convert this to valid JSON: name is John, age is 30, city is NYC, active is true
{"name":"John","age":30,"city":"NYC","active":true}
Entity Extraction
Extract ALL dates from: 'Meeting on Jan 15, 2024. Follow-up by 2024-02-01. Final deadline: March 3rd'
Jan 15, 2024 | 2024-02-01 | March 3rd
Translation
Translate to French and Spanish: 'The quick brown fox jumps over the lazy dog'
FR: Le renard brun rapide saute par-dessus le chien paresseux | ES: El rápido zorro marrón salta sobre el perro perezoso
Code Review
Is this code safe? `eval(user_input)` in Python - Answer YES or NO with one-line reason.
NO - eval() executes arbitrary code, enabling injection attacks

Live Results

Ready to Evaluate

Select your models and hit run. We'll run a real evaluation against the golden set.

Sound Familiar?

Why Do I Need This?

If you've ever had these thoughts, you're in the right place.

Cost Optimization

"Maybe I can use GPT-5.2 Nano for this task and save 80% on API costs?"

Speed & UX

"Users are complaining about slow responses. Which model will give me sub-second latency?"

Accuracy & Safety

"My agent keeps hallucinating on edge cases. How do I find a more reliable model?"

Tool Calling

"I'm building a code assistant. Does Claude or Gemini handle tool calls better?"

Data-Driven Decisions

"We're launching next week. How do I prove to my team which model to use?"

Unbiased Comparison

"Every model claims to be the best. How do I cut through the marketing?"

Stop guessing. Start measuring.

Deploy with Confidence

Everything you need to ship
AI Agents to production

Golden Datasets

Stop testing on "vibes". Generate or upload a golden dataset of 50+ edge cases and run your prompt against them automatically.

Multi-Model Battle

One click to run your prompt against Gemini 3 Flash, GPT-5.2, and Claude Opus 4.5. See exactly which model handles your specific tools correctly.

Cost vs Quality

Visualize the Pareto frontier. Often a cheaper, faster model (Gemini Flash) performs just as well as the expensive ones for specific tasks.

Why This Matters

One wrong answer costs $5,000/day at scale

Without Dataset

$40.00

Model returns wrong answer

Guessing • No verification • Silent failures

With Dataset

$40.50

Catches error before shipping

Verified • Tested • Production-ready

At 10,000 transactions/day

Save $5,000 daily

The Gold Standard

What is a
Golden Dataset?

A golden dataset is a curated collection of high-quality test cases that represent real-world scenarios your AI agent will encounter. Think of it as the "source of truth" for evaluating your model's performance.

Verified Outputs

Each test case includes the expected correct response, allowing automated evaluation of accuracy.

Edge Case Coverage

Includes challenging scenarios, ambiguous inputs, and corner cases that reveal model limitations.

Benchmark Consistency

Run the same tests across different models for apples-to-apples comparison of performance.

"Without a golden dataset, you're just guessing if your AI works. With one, you have measurable proof."

— Yuval Zaragai, ONE ZERO

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GOLDEN STANDARD
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GOLDEN STANDARD

No credit card required • 50 free evaluations/month