Stack AI vs Lambda vs LangChain vs Dify

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

Your tool
Stack AI
vs
Competitor 1
Lambda
Competitor 2
LangChain
Competitor 3
Dify
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor Lambda
lambda.ai
Lambda is a GPU cloud built for training and serving AI models.
Make main Remove
Competitor LangChain
langchain.com
Framework for building with large language models
Make main Remove
Competitor Dify
dify.ai
AI apps without code
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
—
3.4Mvisits/mo
1Mvisits/mo
MoM change
▼ 57.9%
—
▲ 0.7%
▼ 16.6%
6-month growth
-93.7%
—
+21.0%
-30.6%
Global rank web
#1,700,092
—
#13,384
#39,510
Avg. last 3 months
13.9K
—
3.3M
1.1M
Bounce rate lower is better
39%
—
42%
41%
Pages / visit
1.8
—
6.2
4.4
Visit duration
14s
—
5m 29s
6m 40s
Traffic sources
—
—
● Direct 73% · ● Referral 24%
● Direct 84% · ● Referral 15%
Stack AILambdaLangChainDify
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 · 3.4MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1M1K10K100K1M10MStack 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 · 3.4MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
Freemium
Freemium
Starting price
Free tier
—
$39per month · free tier available
$590per month · free tier available
Free tier
–
Free trial
–
–
–
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
Developer FreePlus $39/moEnterprise Custom/mo
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
Capabilities input → output
Input
DataDocumentsText
CodeData
CodeText
DocumentsText
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
3
6
9
Agents
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Agent creation
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Developer tools
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No-code
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Workflows
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LLM development
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Development
–
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GPU infrastructure
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–
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Business automation
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–
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Chatbots
–
–
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Process automation
–
–
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Agent testing
–
–
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Finance workflow automation
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–
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Model training
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–
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Productivity
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 1
▲ 1
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.