Voiceflow vs Haystack vs Lambda vs Yellow

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

Your tool
Voiceflow
vs
Competitor 1
Haystack
Competitor 2
Lambda
Competitor 3
Yellow
Compare
4 tools · best value per row highlighted
Your tool Voiceflow
voiceflow.com
Design conversations visually
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Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
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Competitor Lambda
lambda.ai
Lambda is a GPU cloud built for training and serving AI models.
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Competitor Yellow
yellow.ai
Yellow.ai is an enterprise platform for building AI agents that handle customer and employee conversations.
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Traffic estimated monthly website traffic
Monthly visits
385Kvisits/mo
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MoM change
▼ 5.8%
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6-month growth
-35.3%
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Global rank web
#93,201
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Avg. last 3 months
407.5K
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Bounce rate lower is better
38%
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Pages / visit
5.2
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Visit duration
3m 07s
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Traffic sources
● Direct 75% · ● Referral 24%
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VoiceflowHaystackLambdaYellow
0150K300K450.1K600.1KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385K100K1MVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
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Paid
Free
Starting price
Free tier
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Free
Free tier
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Free trial
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API access
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Plans
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On-demand instances (8x GPU) CustomOn-demand instances (1x GPU) Custom1-Click Clusters CustomReserved / Superclusters Custom
Free FreeEnterprise Custom
Capabilities input → output
Input
DocumentsText
CodeDocuments
CodeData
DocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Developer Tools
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
13
7
3
15
Agents
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Agent creation
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Customer support
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Voice agents
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Customer support chatbot
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Call center automation
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Chatbots
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RAG
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Call answering
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Calls
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Chatbot building
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Developer tools
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GPU infrastructure
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LLM development
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Call agents
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Customer support automation
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Agent memory
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Agent testing
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Conversation automation
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Knowledge bases
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Model training
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No-code
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Self hosted
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Website to chatbot
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
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▲ 0
Saves
0
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Reviews
0
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Prompts
0
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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.