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  1. Home
  2. Alternatives
  3. Alternatives to OpenPipe ART
OpenPipe ART logo

Best Alternatives to OpenPipe ART

Observability · 8 alternatives ranked of 36 in the category

Looking for alternatives to OpenPipe ART? These are the observability tools that score highest on adoption, reviews, benchmarks, and public code, with what separates each one from OpenPipe ART.

Langfuse logo
Langfuse

Observability· langfuse.com

Freemium

Open-source LLM engineering platform for tracing, evals, prompt management, and metrics so teams can debug and improve production AI applications.

35,164

How each alternative differs from OpenPipe ART

Ranked by adoption, review, benchmark, and repository signals. Each note below is drawn from the two products’ own catalog records, so a product with nothing to separate it from OpenPipe ART carries no note.

  1. 1

    Langfuse

    Langfuse is freemium against OpenPipe ART's open source model and carries 35k GitHub stars to OpenPipe ART's 11k.

  2. 2

    Helicone

    Helicone is freemium against OpenPipe ART's open source model.

  3. 3

    DeepEval

    DeepEval carries 19k GitHub stars to OpenPipe ART's 11k.

  4. 4

    MLflow

    MLflow carries 28k GitHub stars to OpenPipe ART's 11k.

  5. 5

    Opik

    Opik carries 22k GitHub stars to OpenPipe ART's 11k.

  6. 7

Open source
Helicone logo
Helicone

Observability· helicone.ai

Freemium

Open-source AI gateway and LLM observability platform for logging, tracing, routing, evaluation, caching, and cost monitoring across model providers and agent stacks.

6,186
Open source
DeepEval logo
DeepEval

Observability· deepeval.com

Open source

Open-source evaluation framework for testing LLM apps, agents, RAG systems, and prompts with repeatable metrics, regression checks, and CI-friendly workflows.

18,508
Open source
MLflow logo
MLflow

Observability· mlflow.org

Open source

MLflow is an open-source AI engineering platform with GenAI evaluation, tracing, monitoring, and optimization workflows for agents, LLM apps, and models.

28,106
Open source
Opik logo
Opik

Observability· comet.com

Open source

Open-source LLM observability and evaluation platform from Comet for tracing, prompt management, testing, and agent optimization.

22,295
Open source
Phoenix logo
Phoenix

Observability· arize.com

Open source

Open source AI observability and evaluation platform for tracing LLM applications, running evals, and debugging agent behavior with OpenTelemetry.

11,656
Open source
Portkey logo
Portkey

Observability· portkey.ai

Freemium

AI gateway and observability layer for routing, guardrails, caching, logging, and spend control across LLM providers behind one API.

13,102
Open source
Promptfoo logo
Promptfoo

Observability· promptfoo.dev

Open source

Open-source testing, red-teaming, and evaluation framework for prompts, RAG, and agents.

25,602
Open source
Portkey

Portkey is freemium against OpenPipe ART's open source model.

  • 8

    Promptfoo

    Promptfoo carries 26k GitHub stars to OpenPipe ART's 11k.