Top 11 ai infrastructure · observability in Europe
LangSmith is the highest-ranked Top 11 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked provider serving Europe.
Why this answer
Filtered to entries that explicitly serve Europe (either headquartered there or listing it as a supported region). Global-only providers always appear.
Showing all 8 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked.
#1LangSmith(rank #1 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
US, EUThe essential, purpose-built observability tool for the massive LangChain ecosystem, offering unmatched debugging depth.
Full LangSmith review · Compare: LangSmith vs Arize AI · Alternatives
#2Arize AI(rank #2 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
US, EUA mature, enterprise-ready platform with deep roots in ML monitoring, excelling at drift and RAG evaluation.
#3Datadog(rank #3 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
GlobalA strong, integrated LLM observability solution for companies already committed to the Datadog platform.
#4WhyLabs(rank #5 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
US, EUA mature, data-first monitoring platform built on the popular open-source whylogs library.
#5Helicone(rank #6 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
US, EUA simple, elegant API proxy for LLM logging, caching, and analytics with near-zero setup friction.
#6New Relic(rank #7 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
GlobalA robust, integrated AI monitoring solution for the extensive New Relic enterprise customer base.
#7Fiddler AI(rank #8 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
US, EUA responsible AI platform with strong explainability, bias detection, and governance features for enterprises.
#8Sentry(rank #9 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)
US, EUConnects LLM pipeline issues directly to application errors and traces for existing Sentry users.
Methodology: /methodology · No paid placement ever · Verified .