Stack AI vs Haystack vs LangGraph vs Flowise

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

Your tool
Stack AI
vs
Competitor 1
Haystack
Competitor 2
LangGraph
Competitor 3
Flowise
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models 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 LangGraph
langchain.com
LangGraph is an open-source agent runtime and low-level orchestration framework for building AI agents that behave reliably on complex tasks.
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Competitor Flowise
flowiseai.com
No-code AI workflows
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Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
—
—
168.3Kvisits/mo
MoM change
▼ 57.9%
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—
▼ 27.6%
6-month growth
-93.7%
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-14.1%
Global rank web
#1,700,092
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#239,649
Avg. last 3 months
13.9K
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—
203.8K
Bounce rate lower is better
39%
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43%
Pages / visit
1.8
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2.8
Visit duration
14s
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1m 23s
Traffic sources
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● Direct 79% · ● Referral 19%
Stack AIHaystackLangGraphFlowise
063.6K127.2K190.8K254.4KStack 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 · 6.3KFlowise · 254.4KFlowise · 249KFlowise · 240.1KFlowise · 195.9KFlowise · 226.4KFlowise · 223.8KFlowise · 210.5KFlowise · 232.5KFlowise · 168.3K1K10K100K1MStack 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 · 6.3KFlowise · 254.4KFlowise · 249KFlowise · 240.1KFlowise · 195.9KFlowise · 226.4KFlowise · 223.8KFlowise · 210.5KFlowise · 232.5KFlowise · 168.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
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Freemium
Freemium
Starting price
Free tier
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$39per month · free tier available
$35per month · free tier available
Free tier
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Free trial
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API access
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Plans
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Developer FreePlus $39/moEnterprise Custom
Free FreeStarter $35/moPro $65/mo
Capabilities input → output
Input
DataDocumentsText
CodeDocuments
Code
DocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
5
5
6
10
Agents
Agent creation
No-code
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Workflows
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Developer tools
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LLM development
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Agent collaboration
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Agent memory
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Chatbot building
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Chatbots
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Chatbot integration
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Development
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Finance workflow automation
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Workflow deployment
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
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▲ 0
Saves
0
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0
Reviews
0
0
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Prompts
0
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.