Compare
They all start after the build. Faultmap starts before.
The eval and observability stack needs a running agent and real traces. Faultmap needs only your goal, personas, data, and tools. See the difference, tool by tool.
Before you build · Faultmap
Needs only the goal and the context. Maps the break while changing the design is still cheap.
After you build · every tool below
Needs a running agent, traces, and production telemetry before it can tell you anything.
Tool by tool
You already use one of these. We come one step before them.
They run once the agent exists. We map where it breaks in the design phase, before the first line of code. Click any to see exactly where Faultmap sits before it.
vsFaultmap vs LangSmith
LangSmith reads the runs. Faultmap reads the goal, personas, data, and tools, and maps the breaks before the first run exists.
See the comparisonvsFaultmap vs Galileo
Galileo guards the running agent. Faultmap maps where it will break in the design phase, before there is anything to guard.
See the comparisonvsFaultmap vs Patronus
Patronus scores the agent you built. Faultmap hands you the first test suite to build against, before you write it.
See the comparisonvsFaultmap vs Braintrust
Braintrust compares versions you built. Faultmap finds the failure modes before version one exists.
See the comparisonvsFaultmap vs Arize
Arize watches production. Faultmap maps the break before the agent ever reaches production.
See the comparisonvsFaultmap vs Helicone
Helicone logs the calls. Faultmap maps the calls that will break before the agent makes one.
See the comparisonvsFaultmap vs Langfuse
Langfuse traces the runs. Faultmap maps the runs that will break before the first one exists.
See the comparisonvsFaultmap vs Datadog
Datadog watches the system you shipped. Faultmap maps the breaks before there is a system to watch.
See the comparisonvsFaultmap vs Weights & Biases
Weights & Biases compares the runs you built. Faultmap names the failures before run one.
See the comparisonvsFaultmap vs Google Vertex AI Agent Builder
Vertex AI Agent Builder gives you the infrastructure to construct and run the agent. Faultmap maps where that agent will break before you commit to building it.
See the comparisonvsFaultmap vs OpenAI Agents SDK
The OpenAI Agents SDK scaffolds how your agents communicate and act. Faultmap maps where those agents will break before the first instruction is written.
See the comparisonvsFaultmap vs Claude Agent SDK
The Claude Agent SDK gives you the runtime to build and run Claude agents. Faultmap maps where those agents will break before you write the first tool.
See the comparisonvsFaultmap vs LangChain
LangChain gives you the wiring to construct the agent. Faultmap maps where the agent will break before you write the first chain.
See the comparisonvsFaultmap vs CrewAI
CrewAI defines who does what inside the crew. Faultmap maps what breaks in the crew's design before any agent runs a task.
See the comparisonvsFaultmap vs LlamaIndex
LlamaIndex builds the retrieval layer and the agent workflows over your data. Faultmap maps where those workflows will break before the first document is indexed.
See the comparisonWe are not a replacement. We are the step before them.
Map where yours breaks first. Your first map is free. No card, no code, no traces.