evaligo

Evaligo: Test AI Prompts Instantly - Ship Reliable Features. Free Forever.

Evaluate, compare, and deploy AI prompts in seconds. No credit card required.Trusted by 2,800+ developers4.9/5 from 156 reviewsEvery account receives 500 free credits each month.32 users joined in the last 24 hours.Forever free plan included500 free credits monthlyNo credit card requiredYour AI Prompt - Automatically Tested - Production-Ready API

Why Leading Teams Choose evaligo Over Manual Testing

Join 2,847+ developers who've reduced AI failures by 80% and shipped features 3x faster.2,847+Active Developers80%Fewer AI Failures3xFaster Deployment4.9/5Customer Rating

Model & Prompt Selection

Compare leading models (OpenAI, Claude, Google, etc.) and prompts side-by-side. Find the best fit for your budget, latency, and accuracy requirements.

Choose the right model and prompt

Cost, Latency & Quality Optimization

Optimize your AI for performance, price, and accuracy. See real-time cost estimates, latency metrics, and quality scores as you test and refine.

Balance speed, quality, and cost

Comprehensive Evaluation & Metrics

Judge results with custom metrics, qualitative and quantitative analysis, and side-by-side comparisons. Make data-driven decisions with confidence.

Decide with real metrics

Collaboration & Scale

Collaborate across teams and scale to production with robust infrastructure, batch testing, and live monitoring.

Ship AI features faster, together

Quality & Safety Gates

Prevent quality regressions and unsafe outputs from reaching users. Set thresholds and get alerts when quality drops below standards.

Zero production incidents in 99.9% of cases

Live Performance Monitoring

Track latency, cost, and custom quality metrics as real traffic flows through your application. Monitor production AI applications in real-time.

Reduce AI costs by 30-50%

Ready to Stop AI Failures?

Start building free today and see results in your first week.

The Complete AI Development Workflow

Get from idea to production in just three simple steps. Our platform handles the complexity so you can focus on building reliable AI applications.Step 01

Iterate

Rapidly refine prompts in playgrounds. Swap models, edit scorers, and see instant feedback. No setup required.Step 02

Eval

Test every change for accuracy and safety. Prevent regressions with automated checks. Custom metrics, qualitative & quantitative analysis.Step 03

Ship

Monitor production in real time. Get alerts and automate reliability. Track latency, cost, and quality metrics.No credit card needed. Free forever.

Simple, Transparent Pricing

Start free, scale as you grow. All plans include our core features with no hidden fees or surprises.Start Here

Free

No setup feesFreePerfect for getting started with AI prompts and testing ideas.* 500 free credits/month for LLM calls* Prompt generation* Schema editor* Upload evaluation data* API for evaluation & deployment* Model & prompt selection (OpenAI, Claude, Google, etc.)* Comprehensive evaluation & metrics* Cost, latency & quality optimization* Side-by-side model comparisons* Real-time feedback & analytics* Production-ready API

Pro

Cancel AnytimeNo setup fees$7/monthFor users who want to create and refine unlimited prompts, with more credits for LLM calls.* Unlimited usage*Key difference in Pro package* Prompt generation* Schema editor* Upload evaluation data* API for evaluation & deployment* Model & prompt selection (OpenAI, Claude, Google, etc.)* Comprehensive evaluation & metrics* Cost, latency & quality optimization* Side-by-side model comparisons* Real-time feedback & analytics* Production-ready API

• Usage subject to fair use policy and certain thresholds.

  Start Building Free Today

Start with our forever free plan and upgrade when you're ready. No credit card required, no setup fees, cancel anytime.
Free forever plan

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30-day money-back guarantee

Stop AI Failures Before They Happen

Join 2,847+ developers who've already transformed their AI development workflow. 95% see results in their first week.2,847+Active Developers80%Fewer AI Failures4.9/5Customer RatingNo credit card needed. Free forever.
Forever free plan
500 free credits monthly
No credit card required
Start building immediately
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