Comparison

Arize AI vs Langfuse

No clear leader: Langfuse (66.4) and Arize AI (61.7) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Arize AI62
Langfuse66
Score
vioscaleAI score
Arize AI62 / 100medium · 70%
Langfuse66 / 100medium · 56%
Pricing
Free tier
Arize AI✓
Langfuse✓
Model
Arize AIfreemium
Langfusefreemium
Price level
Arize AIlow
Langfusefree
Transparent
Arize AI✗
Langfuse✗
Integrations
Count
Arize AI40
Langfuse100
Security
Certifications
Langfuse–
Gdpr
Arize AI✓
Langfuse✓
Hipaa
Arize AI✓
Langfuse✓
Iso27001
Arize AI✓
Langfuse✓
Pci
Arize AI✓
Langfuse–
Soc2
Arize AI✓
Langfuse✓
Reliability
Status page
Arize AI✓
Langfuse✓
Adoption
Dependent repos
Arize AI–
Langfuse0
Github stars
Arize AI–
Langfuse35,781
Package downloads weekly
Arize AI–
Langfuse6,493,381
Activity
Commits last 30d
Arize AI–
Langfuse100
Release
History
Arize AI–
Langfuse20 items
License
Spdx
Arize AI–
LangfuseMIT
Language
Primary
Arize AI–
LangfuseTypeScript
Market
Availability
Arize AI–
Content
Faq
Arize AI5 items
Langfuse7 items

Capabilities

Feature-by-feature on the axes that matter for mlops & llmops tools. “-” means undocumented, not absent.

Core
Tool role
Arize AIEnd-to-end ML platform
LangfuseLLM observability / eval
Deployment
Self-hostable / OSS core
Arize AI✓
Langfuse✓
Managed cloud available
Arize AI✓
Langfuse✓
On-prem / VPC deployment
Arize AI✓
Langfuse✓
Observability
LLM tracing / observability
Arize AI✓
Langfuse✓
Evaluation (offline / LLM-judge / human)
Arize AI✓
Langfuse✓
Dev
Prompt management + versioning
Arize AI✓
Langfuse✓
Tracking
Experiment tracking / model registry
Arize AI✓
Langfuse✓
Serving
Model serving / inference endpoint
Arize AI-
Langfuse✗
Interop
OpenTelemetry / OpenLLMetry compatible
Arize AI✓
Langfuse✓
Framework-agnostic
Arize AI✓
Langfuse✓
Gateway
Multi-provider model support
Arize AI✓
Langfuse✓
Data
No-train-on-customer-data guarantee
Arize AI-
Langfuse-

What each one is

The product in its own terms, so the numbers below have context.

Arize AI

Enables development teams to trace LLM application execution, run automated assessments, investigate failures, and iteratively refine AI agents and systems. Offered in two forms: an open-source self-hosted option and a managed cloud service supporting deployment across major cloud providers and on-premise infrastructure.

Independently observed

Langfuse

A comprehensive observability and development platform that combines tracing, prompt management, evaluation, and experimentation, enabling teams to understand LLM behavior in production and ship improved applications with confidence

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Arize AI

HybridFree tier
as of verify ↗

Langfuse

SubscriptionFree tier

Multiple tiers available; specific pricing not shown in provided text

  • HobbyFree
  • Core-
  • Enterprise-
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Arize AI✓
Langfuse✓
CLI
Arize AI✓
Langfuse✗
Deployment
Cloud / SaaS
Arize AI✓
Langfuse✓
Self-hosted
Arize AI✓
Langfuse✓
Hybrid
Arize AI✓
Langfuse✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (9)
  • OpenAI
  • Anthropic
  • Azure OpenAI
  • LiteLLM
  • Vercel AI SDK
  • CrewAI
  • LlamaIndex
  • OpenTelemetry
  • LangChain

Arize AI

33 total - 24 not shared
  • AWS Bedrock
  • Vertex AI
  • Google GenAI
  • NVIDIA NIM
  • Gemini
  • OpenRouter
  • Claude Code
  • Cursor
  • OpenCode
  • LangGraph
  • Mastra
  • DSPy
  • OpenAI Agents SDK
  • Claude Agent SDK
  • BigQuery
  • Databricks
  • Snowflake
  • Google Vertex AI
  • Google Cloud
  • AWS
  • Azure
  • OpenLLMetry
  • Claude SDK
  • OpenInference
Independently observed

Langfuse

24 total - 15 not shared
  • Pydantic AI
  • Google ADK
  • LiveKit
  • Haystack
  • Amazon Bedrock
  • Mistral AI
  • Google Gemini
  • xAI
  • vLLM
  • Groq
  • OpenAI SDK
  • Cohere
  • Elasticsearch
  • OpenSearch
  • Hugging Face
Independently observed
Still deciding?

Arize AI or Langfuse: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.