FastGPT vs Stack AI vs Langdock vs Glean

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
LLangdock
Competitor 3
Glean
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 Stack AI
stack-ai.com
Connect AI models visually
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Competitor LLangdock
langdock.com
Langdock is an AI adoption platform that puts chat, workflow automation, custom agents, integrations and an API in one workspace for an entire company.
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Competitor Glean
glean.com
Glean is an enterprise AI platform that connects to company apps and data to provide search, an AI assistant and agents.
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Traffic estimated monthly website traffic
Monthly visits
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6.3Kvisits/mo
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MoM change
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▼ 57.9%
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6-month growth
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-93.7%
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Global rank web
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#1,700,092
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Avg. last 3 months
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13.9K
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Bounce rate lower is better
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39%
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Pages / visit
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1.8
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Visit duration
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14s
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Traffic sources
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FastGPTStack AILangdockGlean
042K84K126K167.9KStack 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 · 6.3K1K10K100K1MStack 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 · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
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Starting price
CNY 99per month · free tier available
Free tier
€25per month
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Free tier
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Free trial
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API access
Plans
Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
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Trial FreeBusiness €25/moEnterprise CustomWorkflows Business add-on €539/mo+1 more
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Capabilities input → output
Input
Web pagesTextDocuments
DataTextDocuments
CodeTextDocuments
TextDocumentsData
Output
Apps
Apps
TextCode
Text
Skill level
Advanced
Intermediate
Intermediate
Intermediate
Categories
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Chatbots & CompanionsProductivity & OfficeAI AgentAI Chatbot+1 more
Education & LearningProductivity & OfficeAI AgentAI Assistant+1 more
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
9
7
7
10
Agents
Agent creation
Workflows
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Chatbots
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Knowledge bases
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Business productivity
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Self hosted
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AI search
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No-code
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RAG
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Agent management
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Business automation
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Chatbot building
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Knowledge
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Process automation
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APIs
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Customer support chatbot
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Digital information management
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Finance workflow automation
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Knowledge sourcing
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Model routing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
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Saves
0
0
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Reviews
0
0
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Prompts
0
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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.