Langfuse
8.2#1 in prompting toolFrom $29 a monthFree planWebAPILinuxSelf-hosted
VisitLangfuse vs PromptSource
PromptSource
5.6#9 in prompting toolWebAPISelf-hosted
VisitWhat both publish
| Fact | Langfuse | PromptSource |
|---|---|---|
| API | The public data platform includes APIs for observations, experiments, metrics, prompts, datasets, projects, exports, and an OpenAPI specification. | The API provides Template, Metadata, DatasetTemplates, and TemplateCollection classes to store, manipulate, and use prompts and metadata. |
Langfuse plans
- HobbyFree
- Core$29 a month
- Pro$199 a month
- Teams Add-on$300 a month
- Enterprise$2,499 a month
PromptSource plans
No prices published.
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 PromptSource if…
PromptSource suits developers who need prompt templates, testing, metadata, and API access. It is also useful for contributors creating prompts for additional datasets.