Top 11 ai infrastructure · observability that work with Llamaindex

LangSmith is the highest-ranked provider in the Top 11 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked that integrates with Llamaindex.

Why this answer

Filtered to entries that publicly document a Llamaindex integration. We do not include "API available" as proof of integration — there has to be a named connector or first-class workflow.

Showing all 6 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.

  1. #1LangSmith(rank #1 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)

    9.2/9.4

    The essential, purpose-built observability tool for the massive LangChain ecosystem, offering unmatched debugging depth.

    Full LangSmith review · Compare: LangSmith vs Arize AI · Alternatives

  2. #2Arize AI(rank #2 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)

    9/9.4

    A mature, enterprise-ready platform with deep roots in ML monitoring, excelling at drift and RAG evaluation.

    Full Arize AI review · Alternatives

  3. #3Galileo(rank #4 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)

    8.6/9.4

    A data-centric platform excelling at RAG evaluation, hallucination detection, and unstructured data quality.

    Full Galileo review · Alternatives

  4. #4Helicone(rank #6 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)

    8.2/9.4

    A simple, elegant API proxy for LLM logging, caching, and analytics with near-zero setup friction.

    Full Helicone review · Alternatives

  5. #5Portkey(rank #10 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)

    7.4/9.4

    An AI gateway that bundles observability with caching, retries, and model routing features.

    Full Portkey review · Alternatives

  6. #6OpenLLMetry(rank #11 in 11 Best LLM Monitoring & AI Observability Platforms 2026 — LangSmith Alternatives Ranked)

    7.1/9.4

    A vendor-agnostic, open-source standard for adding LLM signals to OpenTelemetry traces.

    Full OpenLLMetry review · Alternatives

Methodology: /methodology · No paid placement ever · Verified .