Haystack vs Semantic Kernel vs Glean vs LangGraph

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

Your tool
Haystack
vs
Competitor 1
Semantic Kernel
Competitor 2
Glean
Competitor 3
LangGraph
Compare
4 tools · best value per row highlighted
Your tool Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
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Competitor Semantic Kernel
learn.microsoft.com
Semantic Kernel is a lightweight, open-source development kit from Microsoft for building AI agents and adding AI models to existing C#, Python or Java codebases.
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Competitor Glean
glean.com
Glean is an enterprise AI platform that connects to company apps and data to provide search, an AI assistant and agents.
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Competitor LangGraph
langchain.com
LangGraph is an open-source agent runtime and low-level orchestration framework for building AI agents that behave reliably on complex tasks.
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Traffic estimated monthly website traffic
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Freemium
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$39per month · free tier available
Free tier
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Developer FreePlus $39/moEnterprise Custom
Capabilities input → output
Input
CodeDocuments
CodeText
DataDocumentsText
Code
Output
Apps
Apps
Text
Apps
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Education & LearningProductivity & OfficeAI AgentAI Assistant+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 2 shared · core   partial
Tasks covered
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Agents
Agent creation
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LLM development
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Agent memory
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Self hosted
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AI search
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RAG
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Knowledge
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Digital information management
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Model routing
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Community on aitoolstime
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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.