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Build
Prompt & Model Management
Version, compare, and deploy prompt and model changes with full traceability. Roll out experiments safely using feature-flag–style controls, with clear audit trails for every change.
Evaluations
Create and tune custom evals that measure quality specific to your product
LLM Observability
Instantly search and inspect any LLM interaction across environments. Debug failures, investigate incidents, and support audits with complete visibility from development through production.
Test
Agent Simulations for complex agentic AI
Run thousands of synthetic conversations across scenarios, languages, and edge cases
Batch Tests & Experiments
Run tests directly from the LangWatch platform or your code. Track the impact of every change across prompts and agent pipelines.
Auto-Evals
Automatically execute your full test suite with LangWatch, covering both pre-release testing and production monitoring.
Optimize
Build a continuous feedback loop that helps you ship AI products users genuinely trust and enjoy.
Human-in-the-loop
Combine evaluations with domain experts and real user feedback to surface issues early and extract clear, actionable insights from live production data.
Data review & labeling
Collaborative workflows for teams to inspect, annotate, and analyze data together—spotting patterns and sharing learnings across engineering, product, and business stakeholders.
Dataset management
Convert production traces into reusable test cases, golden datasets, and benchmarks to power experiments, regressions, and fine-tuning.
Performance optimization with DSPy
Systematically improve prompts, models, and pipelines using structured experimentation and optimization techniques
Seamless integration in your techstack
OpenTelemetry native, integrates with all models & AI agent frameworks
Evaluations and Agent Simulations running on your existing testing infra
Fully open-source; run locally or self-host
No data lock-in, export any data you need and interop with the rest of your stack
Collaborate to control reliable AI
On-prem, VPC, air-gapped or hybrid
ISO27001, SOC2 certified. GDPR controlled
Role-based
access controls
Use custom models
& integrate via API
FAQ
