Langfuse vs Helicone vs FireHydrant vs Respan

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
FireHydrant
Competitor 3
Respan
Compare
4 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 FireHydrant
firehydrant.com
FireHydrant is an incident management system that brings alerting, on-call scheduling, runbooks, status pages and retrospectives into one place.
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Competitor Respan
respan.ai
Building AI apps
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Traffic estimated monthly website traffic
Monthly visits
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87.3Kvisits/mo
MoM change
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▲ 28.5%
6-month growth
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+881.1%
Global rank web
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#497,399
Avg. last 3 months
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74.8K
Bounce rate lower is better
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41%
Pages / visit
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2.5
Visit duration
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19s
Traffic sources
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● Direct 89% · ● Referral 11%
LangfuseHeliconeFireHydrantRespan
021.8K43.6K65.4K87.3KRespan · 641Respan · 8.9KRespan · 37.2KRespan · 57.9KRespan · 69.1KRespan · 67.9KRespan · 87.3K1001K10K100KRespan · 641Respan · 8.9KRespan · 37.2KRespan · 57.9KRespan · 69.1KRespan · 67.9KRespan · 87.3KFeb '26MarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$29per month · free tier available
$79per month · free tier available
$25per month · free tier available
$199per month · free tier available
Free tier
Free trial
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API access
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Plans
Hobby FreeCore $29/moPro $199/moTeams add-on $300/mo+1 more
Hobby FreePro $79/moTeam $799/moEnterprise Custom
Free FreePro $25/moEnterprise Custom
Free FreeTeam $199/yrEnterprise Custom
Capabilities input → output
Input
DataText
Data
AudioData
DataText
Output
Data
Data
Text
DataText
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeProductivity & OfficeAI APIAI Developer Tools+1 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
12
8
6
9
Developer tools
AI system monitoring
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Monitoring
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Prompt management
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AI observability
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LLM testing
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Debugging
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Incident response
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LLM gateway
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Production alerts
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Self hosted
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APIs
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Application monitoring
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Generative AI evaluation
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LLM behavior analysis
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LLM development
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LLM management
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Model routing
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Prompts
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Red teaming guidance
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Slack
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Summarizing
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Transcription
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
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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.