Respan vs Helicone vs Modal vs Langfuse

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

Your tool
Respan
vs
Competitor 1
Helicone
Competitor 2
Modal
Competitor 3
Langfuse
Compare
4 tools · best value per row highlighted
Your tool Respan
respan.ai
Building AI apps
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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 Modal
modal.com
Run AI code without infrastructure
Make main Remove
Competitor Langfuse
langfuse.com
Langfuse is an open-source platform for observability and evaluation of AI agents and LLM applications.
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Traffic estimated monthly website traffic
Monthly visits
87.3Kvisits/mo
—
972.8Kvisits/mo
—
MoM change
▲ 28.5%
—
▲ 5.7%
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6-month growth
+881.1%
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+13.6%
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Global rank web
#497,399
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#43,856
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Avg. last 3 months
74.8K
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960K
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Bounce rate lower is better
41%
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37%
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Pages / visit
2.5
—
6.6
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Visit duration
19s
—
5m 31s
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Traffic sources
● Direct 89% · ● Referral 11%
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● Direct 94% · ● Referral 5%
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RespanHeliconeModalLangfuse
0291.9K583.7K875.6K1.2MRespan · 641Respan · 8.9KRespan · 37.2KRespan · 57.9KRespan · 69.1KRespan · 67.9KRespan · 87.3KModal · 492.6KModal · 603.8KModal · 774KModal · 803.7KModal · 856.4KModal · 1.2MModal · 987.8KModal · 986.7KModal · 920.5KModal · 972.8K1001K10K100K1M10MRespan · 641Respan · 8.9KRespan · 37.2KRespan · 57.9KRespan · 69.1KRespan · 67.9KRespan · 87.3KModal · 492.6KModal · 603.8KModal · 774KModal · 803.7KModal · 856.4KModal · 1.2MModal · 987.8KModal · 986.7KModal · 920.5KModal · 972.8KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$199per month · free tier available
$79per month · free tier available
$250per month · free tier available
$29per month · free tier available
Free tier
Free trial
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–
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API access
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Plans
Free FreeTeam $199/yrEnterprise Custom
Hobby FreePro $79/moTeam $799/moEnterprise Custom
Starter FreeTeam $250/moEnterprise Custom
Hobby FreeCore $29/moPro $199/moTeams add-on $300/mo+1 more
Capabilities input → output
Input
DataText
Data
Code
DataText
Output
DataText
Data
Apps
Data
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI APIAI Developer Tools+1 more
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Development & CodeAI APIAI Developer Tools
Development & CodeProductivity & OfficeAI Developer ToolsAI Monitor
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
9
8
6
12
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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APIs
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Debugging
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GPU infrastructure
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LLM gateway
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Inference
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Self hosted
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Application monitoring
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Development
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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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Performance optimization
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Prompts
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Red teaming guidance
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.