Dify vs Stack AI vs AssistLoop vs FastGPT

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

Your tool
Dify
vs
Competitor 1
Stack AI
Competitor 2
AssistLoop
Competitor 3
FastGPT
Compare
4 tools · best value per row highlighted
Your tool Dify
dify.ai
AI apps without code
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Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor AssistLoop
assistloop.ai
Businesses wanting AI chatbots for customer support can train AssistLoop on their own knowledge base and have it answer customer questions around the clock
Make main Remove
Competitor FastGPT
fastgpt.io
FastGPT is an open-source platform for building AI agents and knowledge-base applications.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
1Mvisits/mo
6.3Kvisits/mo
3.2Kvisits/mo
—
MoM change
▼ 16.6%
▼ 57.9%
▲ 88.8%
—
6-month growth
-30.6%
-93.7%
-16.1%
—
Global rank web
#39,510
#1,700,092
#10,702,450
—
Avg. last 3 months
1.1M
13.9K
2.5K
—
Bounce rate lower is better
41%
39%
45%
—
Pages / visit
4.4
1.8
1.5
—
Visit duration
6m 40s
14s
—
—
Traffic sources
● Direct 84% · ● Referral 15%
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—
—
DifyStack AIAssistLoopFastGPT
0368.2K736.4K1.1M1.5MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MStack 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 · 6.3KAssistLoop · 627AssistLoop · 1KAssistLoop · 3.1KAssistLoop · 3.8KAssistLoop · 173AssistLoop · 1.3KAssistLoop · 2.6KAssistLoop · 1.7KAssistLoop · 3.2K1001K10K100K1M10MDify · 1.1MDify · 1.2MDify · 1.3MDify · 1.1MDify · 1.5MDify · 1.2MDify · 1.1MDify · 1.2MDify · 1.2MDify · 1MStack 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 · 6.3KAssistLoop · 627AssistLoop · 1KAssistLoop · 3.1KAssistLoop · 3.8KAssistLoop · 173AssistLoop · 1.3KAssistLoop · 2.6KAssistLoop · 1.7KAssistLoop · 3.2KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$590per month · free tier available
Free tier
$25per month · free tier available
CNY 99per month · free tier available
Free tier
Free trial
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–
–
API access
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Plans
Sandbox FreeProfessional $590/yrTeam $1,590/yrEnterprise Custom
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Free FreeBasic $25/moPro $109/moBusiness $325/mo
Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
Capabilities input → output
Input
DocumentsText
DataDocumentsText
DocumentsTextWeb pages
DocumentsTextWeb pages
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Intermediate
Intermediate
Advanced
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+4 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Business & MarketingChatbots & CompanionsAI ChatbotAI Customer Service
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
7
7
9
Agents
–
Agent creation
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Workflows
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Chatbots
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No-code
–
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Chatbot building
–
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Customer support chatbot
–
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Customer support
–
–
–
Knowledge bases
–
–
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RAG
–
–
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Business automation
–
–
–
Developer tools
–
–
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FAQ chatbot
–
–
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Knowledge-driven chatting
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–
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LLM development
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–
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Process automation
–
–
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Self hosted
–
–
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Website to chatbot
–
–
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Development
–
–
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Finance workflow automation
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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
▲ 1
▲ 0
▲ 0
▲ 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.