Compare
Compare LLM cost tooling
Capsera governs agent spend: cost attributed per agent and per run, with limits enforced before the provider call. That is a narrower job than most tools in this space do, and for several common jobs another tool is the better answer. These pages say which, and why.
Both LiteLLM and Langfuse are free and open source. Where they are better at something, these pages say so and link to their documentation — a comparison you cannot check is worth nothing.
Gateway vs observability vs governance
Three layers, not three competitors. What each one answers, which can refuse a call, and why most teams end up running more than one.
Read the comparison
Being written
Capsera vs Langfuse
Agent cost governance against LLM observability. Langfuse computes cost accurately and nests it per function; it cannot block a call. Complementary more often than competing.
Capsera vs LiteLLM
Per-agent budgets against per-key budgets. LiteLLM's enforcement is real and hard; the difference is the shape of the unit it enforces on.
LiteLLM vs Langfuse
A comparison that is not about us, because when someone asks which of those two to use they deserve a straight answer.
In the meantime, the questions page answers the common comparison questions directly.