01
LangFuse
Open source agent evals and observability platform
Langfuse is an open-source platform for agent evaluations and observability. It enables teams to trace, evaluate, and improve AI agents efficiently.
92.0
Best LLM observability tools
10 ranked, with a plain verdict on every entry.
LangFuse ranks first here for AI engineering teams building production-grade LLM applications. AgentOps is built for engineers building reliable agents, and allows developers to visually track events such as LLM calls and multi-agent interactions. Arize AI serves AI engineers building self-improving agents, and offers the most comprehensive eval framework in the market.
RANKENTRYSCORETRENDFROM
5
Weights and BiasesBuilt for AI development teams88.0NEWFree tier available; Teams plan from ~£23/month per member
8
PromptLayerThe AI tool allows non-technical domain experts to edit prompts directly without code82.0NEW–
CURATED · UPDATED REGULARLY
The ranking, in detail
02
AgentOps
Reliable AI agents: Trace, debug, & deploy
AgentOps is the leading developer platform for building AI agents and LLM apps.
88.0
03
Arize AI
ML observability and fairness monitoring platform
Arize AI is an agent observability and evaluation platform. It turns production signals into continual learning so agents improve with every interaction.
88.0
04
Fiddler AI
Model monitoring and explainability platform for compliance
Fiddler AI serves as the control plane for enterprise AI agents. It provides a system of trust covering observability, policy enforcement, and governance.
88.0
05
Weights and Biases
Machine learning platform for experiment tracking and model management
Weights and Biases is an AI developer platform for building agents and models. It enables teams to productionise AI applications with confidence.
88.0
06
HoneyHive
Agent observability & evaluation platform
HoneyHive is an agent observability platform designed for enterprises running mission-critical AI. It enables organisations to observe, evaluate, and trust their agents in production environments.
84.0
07
MLflow AI Platform
Deliver high-quality AI, fast
MLflow AI Platform is the leading open source AI engineering platform. It enables teams to debug, evaluate, and monitor LLM applications and models.
82.0
08
PromptLayer
The collaboration layer for AI engineering teams
PromptLayer is an AI engineering platform combining a prompt registry with evaluations and observability. It enables teams to version, test, deploy, and monitor prompts effectively.
82.0
09
Dynamiq
Enterprise AI agents deployed in your cloud or data centre
Dynamiq is an operating platform for generative AI applications that streamlines the development cycle.
80.0
10
FloTorch
Revolutionize operations with ai
FloTorch is an enterprise platform for building and scaling agentic AI. It helps organisations deploy workflows that perform reliably at scale.
76.0
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Positions 1, 2 and 3 are available to buy for twelve months.
Frequently asked questions
What do the top four say they are built for?
LangFuse says it is built for AI engineering teams building production-grade LLM applications, and AgentOps for engineers building reliable agents. Arize AI says it is built for AI engineers building self-improving agents, and Fiddler AI for Enterprise security and compliance teams.