Stack AI vs Chatbase vs pgvector vs ChatNode

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

Your tool
Stack AI
vs
Competitor 1
Chatbase
Competitor 2
pgvector
Competitor 3
ChatNode
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
Remove
Competitor Chatbase
chatbase.co
Train chatbots on your content
Make main Remove
Competitor pgvector
github.com
pgvector is an open-source extension that adds vector similarity search to Postgres.
Make main Remove
Competitor ChatNode
chatnode.ai
ChatNode builds AI customer service agents that handle support queries and execute actions through API calls
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
402.2Kvisits/mo
—
7.9Kvisits/mo
MoM change
▼ 57.9%
▲ 2.0%
—
▼ 56.0%
6-month growth
-93.7%
-12.4%
—
-13.9%
Global rank web
#1,700,092
#84,220
—
#1,061,283
Avg. last 3 months
13.9K
412.6K
—
12.2K
Bounce rate lower is better
39%
44%
—
39%
Pages / visit
1.8
6.9
—
4.9
Visit duration
14s
4m 34s
—
2m 20s
Traffic sources
—
● Direct 81% · ● Referral 15%
—
● Direct 97% · ● Mail 3%
Stack AIChatbasepgvectorChatNode
0147.7K295.3K443K590.6KStack 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 · 6.3KChatbase · 590.6KChatbase · 583.4KChatbase · 309.5KChatbase · 281.8KChatbase · 459KChatbase · 473.7KChatbase · 444.7KChatbase · 441.2KChatbase · 394.5KChatbase · 402.2KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9K1K10K100K1MStack 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 · 6.3KChatbase · 590.6KChatbase · 583.4KChatbase · 309.5KChatbase · 281.8KChatbase · 459KChatbase · 473.7KChatbase · 444.7KChatbase · 441.2KChatbase · 394.5KChatbase · 402.2KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Free
Free Trial
Starting price
Free tier
$40per month · free tier available
Free
$35per month
Free tier
–
Free trial
–
API access
–
Plans
—
Free FreeHobby $40/moStandard $150/moPro $500/mo+1 more
—
Lite $35/moStandard $89/moScale $377/moEnterprise Custom
Capabilities input → output
Input
DataDocumentsText
DocumentsTextWeb pages
Data
DocumentsTextWeb pages
Output
Apps
AppsText
Data
Apps
Skill level
Intermediate
Intermediate
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Business & MarketingChatbots & CompanionsAI ChatbotAI Customer Service+1 more
Development & CodeAI Developer Tools
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+2 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
5
10
3
7
Agents
–
Customer support
–
–
Customer support chatbot
–
–
Chatbots
–
–
No-code
–
–
Chatbot building
–
–
Chatbot integration
–
–
Website to chatbot
–
–
Vector databases
–
–
–
Vector indexes
–
–
–
Workflows
–
–
–
Agent creation
–
–
–
PostgreSQL assistance
–
–
–
Shopify customer support
–
–
–
Finance workflow automation
–
–
–
Sales
–
–
–
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.