Langfuse vs CometAPI vs Helicone

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

Your tool
Langfuse
vs
Competitor 1
CometAPI
Competitor 2
Helicone
Competitor 3
Suggested competitors for Langfuse: Arize Phoenix93% Weights & Biases86% Portkey86% Respan85% Datadog81% New Relic AI78% Dynatrace77% LiteLLM77%
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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 CometAPI
cometapi.com
CometAPI functions as an aggregation layer that sits between your application and hundreds of AI model providers
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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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Traffic estimated monthly website traffic
Monthly visits
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302.3Kvisits/mo
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MoM change
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▲ 9.9%
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6-month growth
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-16.5%
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Global rank web
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#157,147
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Avg. last 3 months
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295.7K
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Bounce rate lower is better
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46%
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Pages / visit
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2.9
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Visit duration
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38s
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Traffic sources
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● Direct 69% · ● Referral 30%
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LangfuseCometAPIHelicone
0208.6K417.2K625.8K834.4KCometAPI · 834.4KCometAPI · 619.7KCometAPI · 437.2KCometAPI · 362.2KCometAPI · 355.5KCometAPI · 362.7KCometAPI · 309.5KCometAPI · 275.2KCometAPI · 302.3K100K1MCometAPI · 834.4KCometAPI · 619.7KCometAPI · 437.2KCometAPI · 362.2KCometAPI · 355.5KCometAPI · 362.7KCometAPI · 309.5KCometAPI · 275.2KCometAPI · 302.3KDec '25Jan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Starting price
$29per month · free tier available
$4per month · free tier available
$79per 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
Free Trial FreePay-as-you-go Custom/usage-basedEnterprise Custom/mo
Hobby FreePro $79/moTeam $799/moEnterprise Custom
Capabilities input → output
Input
DataText
ImagesText
Data
Output
Data
ImagesTextVideo
Data
Skill level
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeAI API
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
12
6
8
Developer tools
AI observability
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AI system monitoring
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LLM gateway
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Monitoring
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Prompt management
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Debugging
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APIs
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API integrations
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LLM testing
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Self hosted
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Generative AI evaluation
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Image generation
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LLM behavior analysis
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LLM management
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Model routing
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Prompts
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Video generation
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
0
0
0
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.