Stack AI vs Weaviate vs Langflow 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
Weaviate
Competitor 2
Langflow
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 Weaviate
weaviate.io
Search that understands meaning
Make main Remove
Competitor Langflow
langflow.org
Drag and drop AI
Make main Remove
Competitor Dify
dify.ai
AI apps without code
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
154.2Kvisits/mo
215.3Kvisits/mo
1Mvisits/mo
MoM change
▼ 57.9%
▼ 11.8%
▼ 0.7%
▼ 16.6%
6-month growth
-93.7%
-7.0%
-4.9%
-30.6%
Global rank web
#1,700,092
#293,589
#217,191
#39,510
Avg. last 3 months
13.9K
155.7K
225.2K
1.1M
Bounce rate lower is better
39%
41%
44%
41%
Pages / visit
1.8
1.9
2.2
4.4
Visit duration
14s
50s
1m 04s
6m 40s
Traffic sources
—
● Direct 82% · ● Referral 18%
● Direct 76% · ● Referral 24%
● Direct 84% · ● Referral 15%
Stack AIWeaviateLangflowDify
0368.2K736.4K1.1M1.5MStack 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 · 6.3KWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KDify · 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 · 6.3KWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Free
Freemium
Starting price
Free tier
$45per month · free tier available
Free
$590per month · free tier available
Free tier
Free trial
–
–
–
API access
Plans
—
Free FreeFlex $45/moPremium $0
—
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
Capabilities input → output
Input
DataDocumentsText
DataImagesText
Text
DocumentsText
Output
Apps
Data
Apps
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeAI Developer Tools
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
3
0
9
9
Agents
–
No-code
–
Workflows
–
Agent creation
–
–
Chatbots
–
–
Developer tools
–
–
LLM development
–
–
Development
–
–
APIs
–
–
–
Productivity
–
–
–
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
–
–
–
–

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.