LangChain vs Document360 vs Haystack vs OpenAI Agents SDK

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

Your tool
LangChain
vs
Competitor 1
Document360
Competitor 2
Haystack
Competitor 3
OAOpenAI Agents SDK
Compare
4 tools · best value per row highlighted
Your tool LangChain
langchain.com
Framework for building with large language models
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Competitor Document360
document360.com
Document360 is knowledge base software for publishing product documentation, help centers, SOPs, user manuals and API docs.
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Competitor 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 OAOpenAI Agents SDK
openai.github.io
The OpenAI Agents SDK is a Python package for building agentic applications with very few abstractions.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
3.4Mvisits/mo
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MoM change
▲ 0.7%
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6-month growth
+21.0%
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Global rank web
#13,384
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Avg. last 3 months
3.3M
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Bounce rate lower is better
42%
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Pages / visit
6.2
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Visit duration
5m 29s
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Traffic sources
● Direct 73% · ● Referral 24%
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LangChainDocument360HaystackOpenAI Agents SDK
0850.7K1.7M2.6M3.4MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4M1M10MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
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Free
Starting price
$39per month · free tier available
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Free
Free tier
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Free trial
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API access
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Plans
Developer FreePlus $39/moEnterprise Custom/mo
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Capabilities input → output
Input
CodeText
DocumentsTextVideo
CodeDocuments
AudioCodeText
Output
Apps
AppsText
Apps
AppsAudio
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Business & MarketingEducation & LearningProductivity & OfficeAI Customer Service+2 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
10
7
6
Agent creation
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Agents
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LLM development
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Developer tools
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Knowledge bases
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RAG
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API docs
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Customer support chatbot
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Development
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MCP
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Writing documentation
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AI search
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Agent collaboration
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Agent memory
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Agent testing
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Customer support
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Knowledge exploration
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SOPs
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SaaS knowledge base
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Self hosted
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Voice agents
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
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0
Reviews
0
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Prompts
0
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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.