Compare
Honest comparisons against the obvious alternatives.
If you're looking at Argus, you're probably also looking at OpenTelemetry, a general LLM observability tool, or rolling your own. Here's the honest read on where each one fits — including where Argus isn't the right answer.
Argus vs Langfuse for Claude Cowork sessions
Langfuse is general-purpose LLM observability across providers. Argus is purpose-built for the Claude Cowork session surface. If you ship Cowork, you want both — Langfuse for your product, Argus for the agent runtime.
Read comparisonArgus vs OpenTelemetry for Claude Cowork
OpenTelemetry tracks the quantities — cost, tokens, latency. Argus tracks the qualities — prompts, tool calls, what actually happened. Real Claude Cowork visibility needs both.
Read comparison