Stack AI vs LlamaIndex vs Haystack

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

Your tool
Stack AI
vs
Competitor 1
LlamaIndex
Competitor 2
Haystack
Competitor 3
Suggested competitors for Stack AI: Flowise91% Dify90% MindStudio89% Pipefy89% Microsoft Copilot Studio88% Activepieces88% Make87% CrewAI87%
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3 tools · best value per row highlighted
Your tool Stack AI
stack-ai.com
Connect AI models visually
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Competitor LlamaIndex
llamaindex.ai
Connect AI to your data
Make main 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
Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
324Kvisits/mo
—
MoM change
▼ 57.9%
▼ 21.0%
—
6-month growth
-93.7%
-29.5%
—
Global rank web
#1,700,092
#118,014
—
Avg. last 3 months
13.9K
398.3K
—
Bounce rate lower is better
39%
46%
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Pages / visit
1.8
2.8
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Visit duration
14s
1m 57s
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Traffic sources
—
● Direct 74% · ● Referral 20%
—
Stack AILlamaIndexHaystack
0117.7K235.4K353K470.7KStack 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 · 6.3KLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324K1K10K100K1MStack 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 · 6.3KLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
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Starting price
Free tier
Free tier
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Free tier
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Free trial
–
–
API access
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Plans
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Free FreeStarter Custom/moPro Custom/moEnterprise Custom/mo
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Capabilities input → output
Input
DataDocumentsText
DocumentsImages
CodeDocuments
Output
Apps
DataText
Apps
Skill level
Intermediate
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
5
12
5
Agents
Agent creation
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LLM development
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Developer tools
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Workflows
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Data extraction
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Document data extraction
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Document processing
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No-code
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OCR
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Text extraction
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Agent memory
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Development
–
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Finance workflow automation
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Information retrieval
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Medical data extraction
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
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.