Haystack vs ChatNode vs Stack AI vs Voiceflow

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

Your tool
Haystack
vs
Competitor 1
ChatNode
Competitor 2
Stack AI
Competitor 3
Voiceflow
Compare
4 tools · best value per row highlighted
Your tool 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 ChatNode
chatnode.ai
ChatNode builds AI customer service agents that handle support queries and execute actions through API calls
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
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Competitor Voiceflow
voiceflow.com
Design conversations visually
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
7.9Kvisits/mo
6.3Kvisits/mo
385Kvisits/mo
MoM change
—
▼ 56.0%
▼ 57.9%
▼ 5.8%
6-month growth
—
-13.9%
-93.7%
-35.3%
Global rank web
—
#1,061,283
#1,700,092
#93,201
Avg. last 3 months
—
12.2K
13.9K
407.5K
Bounce rate lower is better
—
39%
39%
38%
Pages / visit
—
4.9
1.8
5.2
Visit duration
—
2m 20s
14s
3m 07s
Traffic sources
—
● Direct 97% · ● Mail 3%
—
● Direct 75% · ● Referral 24%
HaystackChatNodeStack AIVoiceflow
0150K300K450.1K600.1KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385K1K10K100K1MChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
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Free Trial
Freemium
Freemium
Starting price
—
$35per month
Free tier
Free tier
Free tier
–
–
Free trial
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API access
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Plans
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Lite $35/moStandard $89/moScale $377/moEnterprise Custom
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—
Capabilities input → output
Input
CodeDocuments
DocumentsTextWeb pages
DataDocumentsText
DocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Advanced
Intermediate
Intermediate
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+2 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
5
7
5
13
Agents
Agent creation
–
Customer support
–
–
Customer support chatbot
–
–
Chatbots
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–
No-code
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–
Chatbot building
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–
Website to chatbot
–
–
LLM development
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–
–
Voice agents
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–
–
Workflows
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–
–
Call agents
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–
–
Call center automation
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–
–
Calls
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–
–
Developer tools
–
–
–
Agent memory
–
–
–
Call answering
–
–
–
Chatbot integration
–
–
–
Finance workflow automation
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–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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–
–
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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.