Stack AI vs Haystack vs ChatNode vs LangChain

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

Your tool
Stack AI
vs
Competitor 1
Haystack
Competitor 2
ChatNode
Competitor 3
LangChain
Compare
4 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
Remove
Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
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
Competitor LangChain
langchain.com
Framework for building with large language models
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
—
7.9Kvisits/mo
3.4Mvisits/mo
MoM change
▼ 57.9%
—
▼ 56.0%
▲ 0.7%
6-month growth
-93.7%
—
-13.9%
+21.0%
Global rank web
#1,700,092
—
#1,061,283
#13,384
Avg. last 3 months
13.9K
—
12.2K
3.3M
Bounce rate lower is better
39%
—
39%
42%
Pages / visit
1.8
—
4.9
6.2
Visit duration
14s
—
2m 20s
5m 29s
Traffic sources
—
—
● Direct 97% · ● Mail 3%
● Direct 73% · ● Referral 24%
Stack AIHaystackChatNodeLangChain
0850.7K1.7M2.6M3.4MStack 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 · 6.3KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4M1K10K100K1M10MStack 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 · 6.3KChatNode · 11.7KChatNode · 6.7KChatNode · 10KChatNode · 9.2KChatNode · 4.6KChatNode · 10.4KChatNode · 10.6KChatNode · 18KChatNode · 7.9KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
—
Free Trial
Freemium
Starting price
Free tier
—
$35per month
$39per month · free tier available
Free tier
–
–
Free trial
–
–
API access
–
–
Plans
—
—
Lite $35/moStandard $89/moScale $377/moEnterprise Custom
Developer FreePlus $39/moEnterprise Custom/mo
Capabilities input → output
Input
DataDocumentsText
CodeDocuments
DocumentsTextWeb pages
CodeText
Output
Apps
Apps
Apps
Apps
Skill level
Intermediate
Advanced
Intermediate
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+2 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
7
9
6
Agents
Agent creation
–
LLM development
–
–
Developer tools
–
–
Customer support
–
–
–
Customer support chatbot
–
–
–
No-code
–
–
–
RAG
–
–
–
Workflows
–
–
–
Business automation
–
–
–
Chatbots
–
–
–
Customer support automation
–
–
–
Development
–
–
–
Knowledge bases
–
–
–
Process automation
–
–
–
Website to chatbot
–
–
–
Agent memory
–
–
–
Agent testing
–
–
–
Chatbot building
–
–
–
Chatbot integration
–
–
–
Finance workflow automation
–
–
–
Self hosted
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
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.