Top alternatives to Langfuse

Langfuse is a organization in AI Infra & Developer Tools. Here are the strongest alternatives, ranked by an explainable 4-dimension score.

● Data-backed · 503 nodes · updated 2026-08-26
#AlternativeOverallPop.Mom.Cred.Eco.
1Portkey · Observability
An AI gateway and observability layer that routes, caches and monitors calls across LLM providers.
7149907470
2Weights & Biases · Observability
Weights & Biases — Observability · AI Infra & Developer Tools.
6855588784
3WhyLabs · Observability
An AI observability platform for monitoring data quality, model performance and LLM behavior at scale.
6364607060
4Helicone · Observability
An open-source observability platform for logging, monitoring and analyzing LLM API requests.
6945907470
5Arize AI · Observability
An ML and LLM observability platform for monitoring, troubleshooting and evaluating models in production.
6848678584
6PromptLayer · Observability
PromptLayer — Observability · AI Infra & Developer Tools.
6044696860
7Fiddler AI · Observability
An AI observability platform for monitoring, explaining and ensuring the trustworthiness of ML and LLM models.
5643577060
8Patronus AI · Eval
An evaluation and testing platform that automatically scores, monitors and stress-tests AI systems and agents.
7874907470
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