FastGPT vs Stack AI vs Harpa

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

Your tool
FastGPT
vs
Competitor 1
Stack AI
Competitor 2
Harpa
Competitor 3
Suggested competitors for FastGPT: Rasa89% BrainyBear87% Flowise84% Dust84% Langflow83% Glean82% Dify82% CrewAI81%
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3 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 Stack AI
stack-ai.com
Connect AI models visually
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Competitor Harpa
harpa.ai
HARPA AI is a Chrome Extension and NoCode RPA platform that automates web tasks to save time and money. It uses a hybrid AI engine built on ChatGPT and Machine Learning to perform tasks such as provid
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Traffic estimated monthly website traffic
Monthly visits
—
6.3Kvisits/mo
281.1Kvisits/mo
MoM change
—
▼ 57.9%
▼ 18.4%
6-month growth
—
-93.7%
-55.5%
Global rank web
—
#1,700,092
#170,120
Avg. last 3 months
—
13.9K
326.3K
Bounce rate lower is better
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39%
53%
Pages / visit
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1.8
1.6
Visit duration
—
14s
1m 09s
Traffic sources
—
—
● Direct 95% · ● Referral 4%
FastGPTStack AIHarpa
0157.9K315.7K473.6K631.4KStack 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 · 6.3KHarpa · 269.4KHarpa · 340KHarpa · 397.4KHarpa · 367.5KHarpa · 631.4KHarpa · 457.2KHarpa · 421.2KHarpa · 353.4KHarpa · 344.4KHarpa · 281.1K1K10K100K1MStack 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 · 6.3KHarpa · 269.4KHarpa · 340KHarpa · 397.4KHarpa · 367.5KHarpa · 631.4KHarpa · 457.2KHarpa · 421.2KHarpa · 353.4KHarpa · 344.4KHarpa · 281.1KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Starting price
CNY 99per month · free tier available
Free tier
€14.3per month
Free tier
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Free trial
–
–
API access
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Plans
Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
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Everyone €14.30/moPro €19.60/moLife €238
Capabilities input → output
Input
DocumentsTextWeb pages
DataDocumentsText
TextWeb pages
Output
Apps
Apps
DataText
Skill level
Advanced
Intermediate
Intermediate
Categories
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeVideo Editing+7 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
2
5
10
Agents
Chrome extensions
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No-code
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Workflows
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Agent creation
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Email automation
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Summarizing
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Video summaries
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Web scraping
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Chatbots
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Customer support chatbot
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Email management
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Finance workflow automation
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SEO
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Web browsing
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–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 1
Saves
0
0
0
Reviews
0
0
0
Prompts
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.