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Helicone vs Langfuse
Side-by-side comparison of features, pricing, and ratings
Pricing
Freemium
Freemium
Plans
$0/mo
$79/mo
$799/mo
Custom
$0/mo
$29/mo
$199/mo
$2499/mo
Popularity
2.6k views
6.4k views
Skill Level
Intermediate
Intermediate
API Available
Platforms
WebAPI
WebAPI
Categories
⚙️ Developer Infrastructure
⚙️ Developer Infrastructure
Features
AI Gateway routing to 100+ models
Per-request LLM observability logging
Rate limiting and cost alerts
Playground for testing prompts with reasoning effort control
Visual thinking display for thinking models
Datasets for versioning prompt data
HQL (Helicone Query Language) for log analytics
Sessions and users tracking
Passthrough billing with 0% markup
Caching, rate limits, automatic fallbacks
MCP (Model Context Protocol) compatibility
1M context window support (Claude Sonnet 4/4.5)
Prompt Management V2 with version control
Embedded observability via OpenAI API
Country-based request filtering
Hierarchical LLM traces with cost/latency filtering
LLM-as-a-judge evaluation and heuristic functions
One-click prompt deployment and rollback
Playground for side-by-side model/input testing
Experiments with test case comparison
Human annotation and golden dataset creation
Cost and latency dashboards with alerts
Monitors and alerts (Slack, webhooks, GitHub Actions)
Full-text search (Cloud rollout)
Code evaluators (Python/TypeScript)
Langfuse Assistant (natural-language queries)
Multi-modal datasets (images, audio, video, documents)
OpenTelemetry-native instrumentation
Python and TypeScript native SDKs
REST APIs and S3 blob storage export
Integrations
OpenAI
Anthropic
Azure
LiteLLM
Anyscale
Together AI
OpenRouter
n8n
LangChain
Vercel AI SDK
Pydantic AI
Google ADK
CrewAI
LiveKit
Amazon Bedrock
Azure OpenAI
Mistral AI
Google Gemini
xAI
Groq
Claude Code
OpenClaw
Dify
Langflow
Spring AI
Cursor
PostHog
DSPy