LlamaIndex vs Stack AI vs Haystack

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

Your tool
LlamaIndex
vs
Competitor 1
Stack AI
Competitor 2
Haystack
Competitor 3
Suggested competitors for LlamaIndex: LangChain88% CrewAI74% Nanonets70% Langflow70% Flowise70% Reducto70% DeepRead.Tech66% Dify66%
Compare
3 tools · best value per row highlighted
Your tool LlamaIndex
llamaindex.ai
Connect AI to your data
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Competitor Stack AI
stack-ai.com
Connect AI models visually
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
324Kvisits/mo
6.3Kvisits/mo
—
MoM change
▼ 21.0%
▼ 57.9%
—
6-month growth
-29.5%
-93.7%
—
Global rank web
#118,014
#1,700,092
—
Avg. last 3 months
398.3K
13.9K
—
Bounce rate lower is better
46%
39%
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Pages / visit
2.8
1.8
—
Visit duration
1m 57s
14s
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Traffic sources
● Direct 74% · ● Referral 20%
—
—
LlamaIndexStack AIHaystack
0117.7K235.4K353K470.7KLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324KStack 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 · 6.3K1K10K100K1MLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324KStack 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
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Starting price
Free tier
Free tier
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Free tier
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Free trial
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API access
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Plans
Free FreeStarter Custom/moPro Custom/moEnterprise Custom/mo
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Capabilities input → output
Input
DocumentsImages
DataDocumentsText
CodeDocuments
Output
DataText
Apps
Apps
Skill level
Advanced
Intermediate
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+1 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
12
5
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.