Observability

OpenLIT

Open-source, vendor-agnostic LLM observability platform built on OpenTelemetry.

Overview

OpenLIT captures traces, metrics, and logs for LLM applications using OpenTelemetry standards, then streams them to backends like ClickHouse or Elasticsearch. It provides a lightweight dashboard for latency, token usage, and error rate monitoring.

Best for

OpenTelemetry-native stacks
infrastructure-agnostic logging
custom metric pipelines

Trade-offs

vs Helicone

OpenLIT gives full control over telemetry data and backend storage via OTel, while Helicone offers a faster zero-config proxy with built-in caching and cost analytics.

What XeroHack pre-wires

When you pick OpenLIT in the interview, the engine emits these files into your scaffold:

OTel auto-instrumentation
ClickHouse integration
custom dashboard widgets

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