Alternatives to Retrace

Open-source LLM agent observability with tracing, evals, and experiments

OpenTelemetry-native observability with AI SRE Agent0 for automated production insight.

Open-source AI agent tracing and LLM-as-judge evaluation platform for debugging and improving agent quality.

Mechanistic interpretability platform to understand, debug, and design AI models

AI agent observability and evaluation platform for LLM apps

Open-source LLM observability for tracing, evaluating, and optimizing AI agents end-to-end.

Simulation-first LLM observability, evals, and agent testing with Langy AI engineer.

AI observability and eval engineering platform that turns offline evals into production guardrails.

Community-driven leaderboard for comparing AI models, agents, and code through real human votes.

AI observability and evals that auto-fix agent code via git

Open-source OpenTelemetry observability for Python LLM apps

Enterprise LLM evaluation, observability, and red teaming in one platform.

OpenTelemetry-native open-source AI agent evaluation and tracing

Open source platform to debug, evaluate, monitor, and optimize AI agents and ML models.

Track, forecast, and optimize AI spend across providers.

Open-source platform for building, tracing, evaluating, and deploying AI agents.

Simulation-based AI agent testing that catches hallucinations before production

Open-source AI observability for privacy-preserving logging and LLM security

Collaborative LLM development platform for building, testing, and monitoring AI features.

Enterprise AI control plane for observability, guardrails, and governance of agentic AI.

Open-source workspace to build, evaluate, and deploy AI agents through chat

Open-source TypeScript framework for building durable, observable AI agents and workflows.

Enterprise agent control plane to govern, simulate, and deploy AI agents from PoC to production.

Simulate, evaluate, and observe AI agents—ship reliable agents 5x faster with Maxim.

Turn plain English into production-ready Honeycomb queries for faster debugging.

ML experiment tracking and LLM development platform for teams

PostHog is an open-source product OS that unifies analytics, session replay, feature flags, and a data warehouse in one platform.

Route, trace, and evaluate every LLM call from one platform

Organize, share, and collaborate on ChatGPT, Claude, and Gemini prompts in one workspace.

Open-source framework to replace vibe checks with reproducible, LLM-driven evaluation loops for RAG and agents.