Langfuse
8.2#1 in prompting toolFrom $29 a monthFree planWebAPILinuxSelf-hosted
VisitLangfuse vs Memoturn
What both publish
| Fact | Langfuse | Memoturn |
|---|---|---|
| Evaluations | Evaluation supports LLM-as-a-Judge, heuristic or code evaluators, human review, annotation queues, and scoring of production data or experiments. | It supports offline dataset experiments, online evaluation of sampled production traces, and human review queues. |
| Integrations | Langfuse lists more than 100 integrations spanning OpenTelemetry, Python and TypeScript, model providers, agent frameworks, gateways, and developer tools. | The maker lists OpenTelemetry, OpenAI, Anthropic, LangChain, LiteLLM, and MCP, and its integration guide documents additional model providers, frameworks, and vector stores. |
| Product | Langfuse is an open-source AI engineering platform that helps teams collaboratively debug, analyze, and iterate on AI agent applications. | Memoturn is an open-source AI engineering platform for LLM tracing, evaluation, metrics, prompt management, and datasets. |
| Prompt management | Prompt Management provides versioning, one-click deployments, rollbacks, prompt labels, and per-version performance metrics. | Its versioned prompt registry supports deployment channels and A/B experiments that compare versions by score. |
| SDKs | Official SDKs are Python v5 and JavaScript/TypeScript v6; other languages can use OpenTelemetry instrumentation. | The product lists TypeScript, Python, and Go SDKs. |
| Self-hosting | The OSS edition can be deployed with Docker Compose, Kubernetes Helm, or Terraform guides for AWS, GCP, and Azure, including offline or air-gapped installations. | Memoturn says it is self-hostable and that telemetry stays on infrastructure the user owns. |
Langfuse plans
- HobbyFree
- Core$29 a month
- Pro$199 a month
- Teams Add-on$300 a month
- Enterprise$2,499 a month
Memoturn plans
- Memoturn (Apache-2.0 self-hosted core)Free
Pick Langfuse if…
Langfuse suits teams building AI agent applications that need tracing, prompt management, and evaluation tools. It also supports teams that want to self-host the core on their own infrastructure.
Pick Memoturn if…
It suits teams building LLM applications that need to debug production traffic, track spend, monitor quality, or manage prompts. Self-hosting may appeal to operators who want telemetry to remain on infrastructure they own.