Langfuse
8.1#1 in ai agent observability toolsFrom $29 a monthFree planWebAPILinuxSelf-hosted
VisitLangfuse vs PromptHub
What both publish
| Fact | Langfuse | PromptHub |
|---|---|---|
| Evaluation | Evaluation features include LLM-as-a-judge, code evaluators, user feedback, manual labeling, datasets, and experiments. | The platform can run evaluations across test cases and compare prompt outputs side by side. |
| Integrations | Langfuse lists more than 100 integrations spanning OpenTelemetry, Python and TypeScript, model providers, agent frameworks, gateways, and developer tools. | PromptHub supports deployment through its API, shareable forms, and a Zapier integration. |
| Product | Langfuse is an open-source AI engineering platform that helps teams collaboratively debug, analyze, and iterate on AI agent applications. | PromptHub describes itself as a community-driven platform to discover, manage, version, test, and deploy prompts. |
| Security | Langfuse reports annual SOC 2 Type II and ISO 27001 audits, external penetration tests, encryption, access controls, GDPR compliance, and a HIPAA-ready region. | The pricing page says prompts, variables, and outputs are encrypted at rest and in transit using AES-246, TLSv1.2+, and regularly rotating keys. |
Langfuse plans
- HobbyFree
- HobbyFree
- Core$29 a month
- Core$29 a month
- Pro$199 a month
- Pro$199 a month
PromptHub plans
- FreeFree
- Pro$12 a month
- Team$20 a month
- EnterprisePriced on request
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 PromptHub if…
PromptHub suits people and teams developing, testing and deploying prompts across multiple model providers. Paid plans are relevant to users who need private prompts or team permissions.