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OpenLLMetry
OpenLLMetry is an open-source observability platform that tracks and monitors LLM application performance using OpenTelemetry.
OpenLLMetry provides open-source observability specifically designed for large language model applications. It builds on top of the OpenTelemetry standard to monitor application behavior and performance. Developers initialize the SDK in their code to track operations such as chat completions and custom workflows. The platform supports both Python and TypeScript environments. It connects directly with provider libraries like OpenAI to capture execution data without complex setup. This tool is built for software engineers who need visibility into their AI application workflows.
OpenLLMetry at a glance
- Best for: Software engineer
- Runs on: open source
- Pricing: Free
- Released: September 2023
- Category: AI coding tool
- Website: traceloop.com
Key features
- Open-source observability for LLM applications
- Integration using two lines of code
- Support for Python and TypeScript
- Tracing for OpenAI completions
- Workflow decorators for custom tracking
- OpenTelemetry standard compliance
Use it for
- Monitor LLM application performance and behavior
- Trace chat completion requests and responses
- Track custom application workflows
Alternatives to OpenLLMetry
- OpenLIT — It enables comprehensive monitoring, evaluation, and management of AI agents via OpenTelemetry.
- Opik — It offers comprehensive tracing, automated evaluations, and open-source flexibility.
- New Relic — Unified visibility across applications, infrastructure, and AI models.
- OpenObserve — Full observability stack at a fraction of the usual storage cost
- Tracium — OpenTelemetry-native traces and metrics with self-hosting or managed cloud options.
- OpenCode — Works with 75+ model providers, local models, and existing subscriptions
- LiteLLM — One OpenAI-format API for 100+ LLM providers
- Agentic Telemetry — Local-first viewer for OTLP traces with agent handoff and tool call trees
- Helicone — Route, debug, and analyze AI applications with one SDK for over 100 models.
- openGym — Zero subscriptions, accounts, or telemetry, with support for bring-your-own AI coaching.
- SigNoz — Unifies logs, metrics, and traces into one correlated platform.
- OpenAPPA — Tracks data flows algebraically to prevent prompt injection without breaking agents.
All OpenLLMetry alternatives