Agenta

Open-source LLM observability. Self-hostable, OpenTelemetry-native.

Tracing, evals, prompt management, and dataset tooling for LLM apps — self-host on your own infra or use Langfuse Cloud. The open-source default when you want full ownership of your observability stack.

LLM eval CLI with rubric scoring and golden sets.

YAML-driven eval harness. Pair a prompt with a goldset, define rubrics, run across multiple models in CI. Strong for catching prompt regressions before they hit production.

Hosted eval + tracing platform for LLM apps.

Production-grade eval orchestration with a dashboard, dataset versioning, and OpenTelemetry tracing. Useful once eval volume outgrows a CI YAML file.

Build, test, and monitor LLM apps with evals and observability.

Athina AI is a collaborative platform for building, evaluating, and monitoring LLM features. It bundles prompt management, datasets, experiments, production tracing, and a library of 50+ preset and custom evaluations, with human annotation tools on top. The platform pairs with an open-source eval SDK and works with OpenAI, Azure, Bedrock, Vertex, and custom models hosted anywhere.