Stack AI vs Semantic Kernel vs LangChain vs Microsoft Copilot Studio

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

Your tool
Stack AI
vs
Competitor 1
Semantic Kernel
Competitor 2
LangChain
Competitor 3
Microsoft Copilot Studio
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor Semantic Kernel
learn.microsoft.com
Semantic Kernel is a lightweight, open-source development kit from Microsoft for building AI agents and adding AI models to existing C#, Python or Java codebases.
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Competitor LangChain
langchain.com
Framework for building with large language models
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Competitor Microsoft Copilot Studio
microsoft.com
Builders can add conversational chat or voice agents, give them autonomous capabilities such as planning and escalating work items, and connect them to business data through more than 1,500 pre-bui...
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Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
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3.4Mvisits/mo
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MoM change
▼ 57.9%
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▲ 0.7%
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6-month growth
-93.7%
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+21.0%
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Global rank web
#1,700,092
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#13,384
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Avg. last 3 months
13.9K
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3.3M
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Bounce rate lower is better
39%
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42%
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Pages / visit
1.8
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6.2
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Visit duration
14s
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5m 29s
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Traffic sources
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● Direct 73% · ● Referral 24%
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Stack AISemantic KernelLangChainMicrosoft Copilot Studio
0850.7K1.7M2.6M3.4MStack 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 · 6.3KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4M1K10K100K1M10MStack 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 · 6.3KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
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Freemium
Free Trial
Starting price
Free tier
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$39per month · free tier available
$18per month
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/mo
Microsoft 365 Business Standard with Copilot $23.50/moMicrosoft 365 Copilot Business $18/moMicrosoft 365 Business Premium with Copilot $32/mo
Capabilities input → output
Input
DataDocumentsText
CodeText
CodeText
DataDocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
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
7
5
6
11
Agents
Agent creation
No-code
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LLM development
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Workflows
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Developer tools
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Agent management
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Business automation
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Chatbot building
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Chatbots
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Development
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MCP
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Process automation
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Voice agents
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API integrations
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Agent testing
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Customer support chatbot
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Finance workflow automation
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Voice chatting
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
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▲ 1
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Saves
0
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Reviews
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Prompts
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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.