LangWatch vs Traceloop

Pick two tools from the same category to compare side-by-side.

	LangWatch Open-source LLM observability, evaluation, and AI agent testing platform.	Traceloop OpenLLMetry — OpenTelemetry-based LLM tracing.
Category	observability	observability
Vendor type	hybrid	open source
Pricing	freemium	freemium
Strengths	+ Fully open-source with local and self-hosted options + Native OpenTelemetry support, framework and provider agnostic + Combines observability, evaluation, and prompt management + Agent simulation across scenarios, languages, and edge cases	+ OpenTelemetry-native; reuse existing tooling + Open source + Vendor-neutral export
Tradeoffs	− Broad feature surface can add setup overhead − Managed cloud usage billed per event beyond included quotas	− LLM-specific UX is thinner than purpose-built tools
Used in stacks	0	0