Langfuse: Open Source Agent Evals &alangfuse.com
Langfuse: Open Source Agent Evals & Observability
Trace, evaluate, and improve AI agents with one open platform. Use production data to understand behavior, col
Braintrust - The active observabilitbraintrust.dev
Braintrust - The active observability platform for agents
Ship quality agents at scale. Braintrust is the AI observability platform for tracing production, running eval
Confident AI: Enterprise AI Evaluaticonfident-ai.com
Confident AI: Enterprise AI Evaluation & Observability Platform
Confident AI is the AI quality platform for enterprise teams to standardize AI evals and observability across
Goodhart Labsgoodhartlabs.com
Goodhart Labs
Goodhart Labs creates honeypot environments and evals designed to elicit misbehavior from frontier models. We
Kiln AI - Build, Evaluate, and Optimkiln.tech

Kiln AI - Build, Evaluate, and Optimize AI Systems
Build better AI systems with evals, RAG, agents, synthetic data, fine-tuning, and prompt optimization. Free ap
Strands Agents | Open source SDK forstrandsagents.com
Strands Agents | Open source SDK for AI agents in Python and TypeScript
Open-source SDK for building and running AI agents in Python and TypeScript: lifecycle controls, tools, MCP, m
Respan - Route, monitor, and evaluatrespan.ai

Respan - Route, monitor, and evaluate every agent run
The AI router with built-in observability & automated evals.
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