Optimize and deploy reliable AI prompts
The leading AI prompt tools platform for prompt generation, optimization, and testing. Build reliable prompts with our prompt optimizer and prompt engineering tools.
Design & Experiment with Prompt Generation Tools
AI-Powered Prompt Optimization Tools
Continuously improve your prompts and agents with Evaly’s smart suggestions, evaluations, and automated feedback loops. Let AI guide you to higher quality and reliability.
View DocsStart Optimizing Prompts
Interactive Prompt Playground & Debugging
Experiment, replay, and debug prompts in a collaborative playground. Instantly see the impact of changes and get AI-driven recommendations for improvement.
View DocsTry Prompt GenerationEvaluate and Manage AI Prompts
LLM as a Judge for Prompt Evaluation
Harness advanced language models to evaluate outputs at scale. Get nuanced, consistent scoring and actionable insights for every experiment.
* Also includes Human-in-the-Loop Annotation for blending AI and human expertise.
View DocsStart Testing AI
Prompt Management, Deployment, Testing & CI/CD
Organize, version, and deploy prompts at scale. Empower your team to iterate quickly and safely with robust management tools. Catch regressions before they reach production. Integrate evaluation-driven checks into your deployment pipeline for continuous quality.
View DocsDeploy PromptsProduction Observability & Monitoring
Real-Time Tracing & Debugging
Gain full visibility into every prompt, response, and model decision in production. Trace issues instantly and optimize your AI stack with complete transparency.
View DocsLive Production Quality Monitoring
Monitor quality, cost, and latency as your AI runs in production. Get real-time alerts and insights powered by continuous evaluation to ensure reliability.
View DocsProduction Analytics & Dashboards
Track production trends, surface anomalies, and share real-time insights with your team. Make data-driven decisions with comprehensive, actionable dashboards.
View DocsUse Cases: AI Prompt Tools for Developers & Teams
Prompt Optimizer
Boost accuracy with an AI prompt optimizer that evaluates, scores, and improves prompts automatically.
AI Prompt Generation
Generate and refine prompts quickly with guided prompt generation tools and a collaborative playground.
AI Testing & Evaluation
Automate AI testing with LLM-as-a-judge, regression checks, and production monitoring for reliability.
Simple, Transparent Pricing
Start free, scale as you grow. All plans include our core features with no hidden fees or surprises.
Free
Perfect 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
For 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
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 • ✓ Cancel anytime • ✓ 30-day money-back guarantee
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.
Iterate
Rapidly refine prompts in playgrounds. Swap models, edit scorers, and see instant feedback. No setup required.
Eval
Test every change for accuracy and safety. Prevent regressions with automated checks. Custom metrics, qualitative & quantitative analysis.
Ship
Monitor production in real time. Get alerts and automate reliability. Track latency, cost, and quality metrics.
Trusted by teams at:
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.
✓ Forever free plan • ✓ 500 free credits monthly • ✓ No credit card required
✓ Start building immediately • ✓ Cancel anytime • ✓ 30-day money-back guarantee