FastGPT vs Flowise vs Stack AI vs Rasa

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

Your tool
FastGPT
vs
Competitor 1
Flowise
Competitor 2
Stack AI
Competitor 3
Rasa
Compare
4 tools · best value per row highlighted
Your tool FastGPT
fastgpt.io
FastGPT is an open-source platform for building AI agents and knowledge-base applications.
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Competitor Flowise
flowiseai.com
No-code AI workflows
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
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Competitor Rasa
rasa.com
Rasa is an agent platform for product teams building customer-facing AI.
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Traffic estimated monthly website traffic
Monthly visits
—
168.3Kvisits/mo
6.3Kvisits/mo
111.5Kvisits/mo
MoM change
—
▼ 27.6%
▼ 57.9%
▼ 3.2%
6-month growth
—
-14.1%
-93.7%
-26.3%
Global rank web
—
#239,649
#1,700,092
#375,963
Avg. last 3 months
—
203.8K
13.9K
117.3K
Bounce rate lower is better
—
43%
39%
41%
Pages / visit
—
2.8
1.8
1.9
Visit duration
—
1m 23s
14s
30s
Traffic sources
—
● Direct 79% · ● Referral 19%
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● Direct 78% · ● Referral 20%
FastGPTFlowiseStack AIRasa
063.6K127.2K190.8K254.4KFlowise · 254.4KFlowise · 249KFlowise · 240.1KFlowise · 195.9KFlowise · 226.4KFlowise · 223.8KFlowise · 210.5KFlowise · 232.5KFlowise · 168.3KStack 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 · 6.3KRasa · 145.7KRasa · 145.6KRasa · 177.1KRasa · 151.4KRasa · 144.6KRasa · 132.4KRasa · 125KRasa · 115.2KRasa · 111.5K1K10K100K1MFlowise · 254.4KFlowise · 249KFlowise · 240.1KFlowise · 195.9KFlowise · 226.4KFlowise · 223.8KFlowise · 210.5KFlowise · 232.5KFlowise · 168.3KStack 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 · 6.3KRasa · 145.7KRasa · 145.6KRasa · 177.1KRasa · 151.4KRasa · 144.6KRasa · 132.4KRasa · 125KRasa · 115.2KRasa · 111.5KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
CNY 99per month · free tier available
$35per month · free tier available
Free tier
Free tier
Free tier
Free trial
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–
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API access
Plans
Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
Free FreeStarter $35/moPro $65/mo
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Free Developer Edition CustomEnterprise Custom
Capabilities input → output
Input
DocumentsTextWeb pages
DocumentsText
DataDocumentsText
CodeText
Output
Apps
Apps
Apps
Apps
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+2 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
9
10
7
10
Agents
Agent creation
Workflows
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Chatbots
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No-code
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Chatbot building
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Chatbot integration
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Customer support chatbot
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Customer support
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–
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Knowledge bases
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–
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RAG
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–
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Agent collaboration
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–
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Agent testing
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–
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Business automation
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–
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Chatbot testing
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–
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Process automation
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–
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Self hosted
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–
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Voice agents
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–
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Agent management
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–
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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
▲ 0
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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.