Langfuse vs Helicone vs Arize Phoenix

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Langfuse
vs
Competitor 1
Helicone
Competitor 2
Arize Phoenix
Competitor 3
Suggested competitors for Langfuse: Weights & Biases86% Portkey86% Respan85% Datadog81% New Relic AI78% Dynatrace77% LiteLLM77% Sherlocks.ai76%
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3 tools · best value per row highlighted
Your tool Langfuse
langfuse.com
Langfuse is an open-source platform for observability and evaluation of AI agents and LLM applications.
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Competitor Helicone
helicone.ai
Helicone is an AI gateway and LLM observability platform that routes, debugs and analyzes requests from AI applications.
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Competitor Arize Phoenix
phoenix.arize.com
Arize Phoenix is an open-source platform for AI observability and evaluation, built by Arize.
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Traffic estimated monthly website traffic
Monthly visits
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MoM change
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6-month growth
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Global rank web
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Avg. last 3 months
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Bounce rate lower is better
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Pages / visit
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Visit duration
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Traffic sources
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Pricing
Model
Freemium
Freemium
Freemium
Starting price
$29per month · free tier available
$79per month · free tier available
$50per month · free tier available
Free tier
Free trial
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API access
Plans
Hobby FreeCore $29/moPro $199/moTeams add-on $300/mo+1 more
Hobby FreePro $79/moTeam $799/moEnterprise Custom
AX Free FreeAX Pro $50/mo
Capabilities input → output
Input
DataText
Data
DataText
Output
Data
Data
Data
Skill level
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Tasks what each tool can do · 4 shared · core   partial
Tasks covered
12
8
8
AI observability
AI system monitoring
Developer tools
Monitoring
LLM testing
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Self hosted
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Prompt management
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Debugging
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Generative AI evaluation
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LLM gateway
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LLM behavior analysis
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LLM management
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Model routing
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Problem investigation
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Prompts
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
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Saves
0
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Reviews
0
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Prompts
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Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.