Chatbase vs FastGPT vs Stack AI vs GPT Trainer

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

Your tool
Chatbase
vs
Competitor 1
FastGPT
Competitor 2
Stack AI
Competitor 3
GPT Trainer
Compare
4 tools · best value per row highlighted
Your tool Chatbase
chatbase.co
Train chatbots on your content
Remove
Competitor FastGPT
fastgpt.io
FastGPT is an open-source platform for building AI agents and knowledge-base applications.
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
Make main Remove
Competitor GPT Trainer
gpt-trainer.com
Build AI agents that actually talk to customers without writing code
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
402.2Kvisits/mo
—
6.3Kvisits/mo
15Kvisits/mo
MoM change
▲ 2.0%
—
▼ 57.9%
▼ 25.4%
6-month growth
-12.4%
—
-93.7%
-34.8%
Global rank web
#84,220
—
#1,700,092
#1,494,515
Avg. last 3 months
412.6K
—
13.9K
20K
Bounce rate lower is better
44%
—
39%
41%
Pages / visit
6.9
—
1.8
1.4
Visit duration
4m 34s
—
14s
2s
Traffic sources
● Direct 81% · ● Referral 15%
—
—
—
ChatbaseFastGPTStack AIGPT Trainer
0147.7K295.3K443K590.6KChatbase · 590.6KChatbase · 583.4KChatbase · 309.5KChatbase · 281.8KChatbase · 459KChatbase · 473.7KChatbase · 444.7KChatbase · 441.2KChatbase · 394.5KChatbase · 402.2KStack 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 · 6.3KGPT Trainer · 20KGPT Trainer · 25.7KGPT Trainer · 23KGPT Trainer · 23KGPT Trainer · 16.1KGPT Trainer · 21.7KGPT Trainer · 24.9KGPT Trainer · 20.1KGPT Trainer · 15K1K10K100K1MChatbase · 590.6KChatbase · 583.4KChatbase · 309.5KChatbase · 281.8KChatbase · 459KChatbase · 473.7KChatbase · 444.7KChatbase · 441.2KChatbase · 394.5KChatbase · 402.2KStack 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 · 6.3KGPT Trainer · 20KGPT Trainer · 25.7KGPT Trainer · 23KGPT Trainer · 23KGPT Trainer · 16.1KGPT Trainer · 21.7KGPT Trainer · 24.9KGPT Trainer · 20.1KGPT Trainer · 15KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Freemium
Freemium
Starting price
$40per month · free tier available
CNY 99per month · free tier available
Free tier
$150per month · free tier available
Free tier
Free trial
–
–
API access
Plans
Free FreeHobby $40/moStandard $150/moPro $500/mo+1 more
Free Edition FreeBasic Edition $99/moAdvanced Edition $599/moCustom Edition Custom
—
Self-Serve $150/moScale $600/moEnterprise Custom
Capabilities input → output
Input
DocumentsTextWeb pages
DocumentsTextWeb pages
DataDocumentsText
DocumentsText
Output
AppsText
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Intermediate
Intermediate
Categories
Business & MarketingChatbots & CompanionsAI ChatbotAI Customer Service+1 more
Chatbots & CompanionsEducation & LearningProductivity & OfficeAI Agent+2 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+4 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
10
9
7
14
Agents
Agent creation
–
Chatbot building
–
Chatbots
–
Customer support
–
–
No-code
–
–
Workflows
–
–
Chatbot integration
–
–
Customer support chatbot
–
–
Call center automation
–
–
–
Knowledge bases
–
–
–
RAG
–
–
–
Business automation
–
–
–
CRM
–
–
–
Call agents
–
–
–
Calls
–
–
–
Lead generation
–
–
–
Process automation
–
–
–
Self hosted
–
–
–
Shopify customer support
–
–
–
Voice chatting
–
–
–
Call answering
–
–
–
Chatbot personalization
–
–
–
Finance workflow automation
–
–
–
Sales
–
–
–
Website to chatbot
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
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.