Code & IT · AI Monitor & Report Builder
LangWatch
Improve GenAI through quality control and user analytics.
Paid
- Website
- langwatch.ai
- Category
- Code & IT › AI Monitor & Report Builder
- Pricing
- Paid
- Platforms
- website
Search features | Agent Simulations | Available in all packages | Simulated users (LLM-powered user simulator) An AI plays the user, generating realistic messages from your scenario description. | An AI plays the user, generating realistic messages from your scenario description. | Multi-turn conversation testing Test full back-and-forth dialogues, not just single prompts. | Test full back-and-forth dialogues, not just single prompts. | Judge agent, evaluate & verdict at any turn A judge scores the conversation against criteria and can decide pass/fail at any turn.
About LangWatch
Start free with the LangWatch Developer plan. Paid plans from €29/month add unlimited evaluations and simulations, with enterprise security and self-hosting. Start free, add seats at € 29 / core-seat / month, and pay only for the events you send. Self-host whenever you want. No credit card to begin. Everything you need to start building and testing agents. 3 scenarios, 3 simulations, 3 custom evals For teams shipping agents to production. 30-day retention included (extend at €3 / GB) For regulated teams that need control and assurance. ISO 27001 reports, InfoSec & legal review Events at € 5 per 100k, on top of € 29 / core-seat / month. Storage is billed only when you keep data beyond the included 30-day retention, € 3 per GB. Drag to estimate.
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Reviews
“" When a customer has an issue we spin up a simulation and give them really concrete evidence it has been fixed. "”
“" Testing went from afterthought to starting point. What took half a day takes ten minutes. "”
“" Moved from Langfuse to LangWatch and love the collaboration features. "”
“" LangWatch gives us confidence in every AI-driven interaction. Critical when you handle payments at scale. "”
“" Every increment we ship now, whether a feature or a bug fix, we have much more confidence. "”
