Comparison

Helicone vs Langfuse

On the evidence we track, Langfuse leads this comparison with a composite score of 66/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Helicone41
★Langfuse66
Score
vioscaleAI score
Helicone41 / 100low · 22%
Langfuse66 / 100medium · 56%
Pricing
Free tier
Helicone–
Langfuse✓
Model
Helicone–
Langfusefreemium
Price level
Helicone–
Langfusefree
Transparent
Helicone–
Langfuse✗
Integrations
Count
Helicone2
Langfuse100
Security
Gdpr
Helicone–
Langfuse✓
Hipaa
Helicone–
Langfuse✓
Iso27001
Helicone–
Langfuse✓
Soc2
Helicone–
Langfuse✓
Reliability
Status page
Helicone✓
Langfuse✓
Adoption
Dependent repos
Helicone–
Langfuse0
Github stars
Helicone–
Langfuse35,781
Package downloads weekly
Helicone396
Langfuse6,493,381
Activity
Commits last 30d
Helicone–
Langfuse100
Release
History
Helicone–
Langfuse20 items
License
Spdx
HeliconeApache-2.0
LangfuseMIT
Language
Primary
HeliconePython
LangfuseTypeScript
Market
Availability
Helicone–
Content
Faq
Helicone–
Langfuse7 items

Capabilities

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

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

What each one is

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

Helicone

A Python wrapper that automatically captures and logs all OpenAI API calls for monitoring and analysis.

Independently observed

Langfuse

Leader

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.

Helicone

Pricing not documented yet.

Langfuse

Leader
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
Helicone–
Langfuse✓
Deployment
Cloud / SaaS
Helicone–
Langfuse✓
Self-hosted
Helicone–
Langfuse✓

Integrations

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

In common (1)
  • OpenAI

Helicone

2 total - 1 not shared
  • Helicone
Independently observed

Langfuse

Leader
24 total - 23 not shared
  • LangChain
  • Vercel AI SDK
  • LiteLLM
  • Pydantic AI
  • Google ADK
  • CrewAI
  • LiveKit
  • Haystack
  • LlamaIndex
  • Anthropic
  • Amazon Bedrock
  • Azure OpenAI
  • Mistral AI
  • Google Gemini
  • xAI
  • vLLM
  • Groq
  • OpenAI SDK
  • Cohere
  • Elasticsearch
  • OpenSearch
  • Hugging Face
  • OpenTelemetry
Independently observed
Still deciding?

Helicone 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.