Stack AI vs Langflow vs Dialogflow vs Haystack

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

Your tool
Stack AI
vs
Competitor 1
Langflow
Competitor 2
Dialogflow
Competitor 3
Haystack
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor Langflow
langflow.org
Drag and drop AI
Make main Remove
Competitor Dialogflow
cloud.google.com
Google's conversational AI
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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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Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
215.3Kvisits/mo
48Mvisits/mo
—
MoM change
▼ 57.9%
▼ 0.7%
▲ 1.9%
—
6-month growth
-93.7%
-4.9%
+1.6%
—
Global rank web
#1,700,092
#217,191
#560
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Avg. last 3 months
13.9K
225.2K
48M
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Bounce rate lower is better
39%
44%
35%
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Pages / visit
1.8
2.2
10.4
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Visit duration
14s
1m 04s
7m 47s
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Traffic sources
—
● Direct 76% · ● Referral 24%
● Direct 67% · ● Referral 29%
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Stack AILangflowDialogflowHaystack
013.2M26.5M39.7M52.9MStack 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 · 6.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KDialogflow · 44.3MDialogflow · 45.8MDialogflow · 47.8MDialogflow · 47.2MDialogflow · 52.9MDialogflow · 49.9MDialogflow · 48.8MDialogflow · 47.1MDialogflow · 48M1K10K100K1M10M100MStack 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 · 6.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KDialogflow · 44.3MDialogflow · 45.8MDialogflow · 47.8MDialogflow · 47.2MDialogflow · 52.9MDialogflow · 49.9MDialogflow · 48.8MDialogflow · 47.1MDialogflow · 48MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
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Starting price
Free tier
Free
Free tier
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Free tier
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Free trial
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–
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API access
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Plans
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Capabilities input → output
Input
DataDocumentsText
Text
AudioText
CodeDocuments
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Business & MarketingChatbots & CompanionsAI Call CenterAI Chatbot+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
5
9
7
5
Agents
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Agent creation
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No-code
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Chatbots
–
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LLM development
–
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Workflows
–
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Developer tools
–
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Chatbot building
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–
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Call center automation
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–
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Customer support
–
–
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Customer support chatbot
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–
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Development
–
–
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APIs
–
–
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Agent memory
–
–
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Call agents
–
–
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Chatbot integration
–
–
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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
▲ 1
▲ 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.