← All comparisons
vs
vsFaultmap vs Langfuse
Langfuse traces the runs. Faultmap maps the runs that will break before the first one exists.
Faultmapbefore the buildLangfuseafter the build
When it runs
Before the build, in the design phase
After the build, on traces
What it needs
Your goal, personas, data, and tools
A running agent emitting traces
What it produces
A map of where it breaks, plus the first test suite
Traces, scores, and session views of real runs
The question it answers
Where will this agent break, before I build it?
What happened across my agent runs?
We do not replace Langfuse. Faultmap runs one step earlier. Keep using Langfuse after the build.
What Langfuse is
Open-source tracing and evals for agents you have already shipped.
Open-source observability
Where Faultmap fits with it
- Run Faultmap in design to catch the breaks before you build.
- Build the agent against the test suite Faultmap hands you.
- Use Langfuse after launch for open-source observability.
Map the breaks before Langfuse ever sees them.
Run a free Faultmap on your goal and your data. No card, no code.