LangGraph vs Defapi vs Haystack vs OpenAI Agents SDK

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

Your tool
LangGraph
vs
Competitor 1
DDefapi
Competitor 2
Haystack
Competitor 3
OAOpenAI Agents SDK
Compare
4 tools · best value per row highlighted
Your tool 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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Competitor DDefapi
defapi.org
You know how managing multiple AI provider integrations usually means maintaining separate codebases for each vendor
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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.
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Traffic estimated monthly website traffic
Monthly visits
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2.4Kvisits/mo
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MoM change
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▼ 42.6%
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6-month growth
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-86.2%
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Global rank web
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#4,650,820
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Avg. last 3 months
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4.8K
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Bounce rate lower is better
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36%
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Pages / visit
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1.4
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Visit duration
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7s
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Traffic sources
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LangGraphDefapiHaystackOpenAI Agents SDK
04.4K8.8K13.3K17.7KDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4K1K10K100KDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KDec '25Jan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Paid
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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
Gemini 3.1 Pro Preview $1/$6/per requestClaude Sonnet 4.6 $1.5/$7.5/per requestClaude Opus 4.6 $2.5/$12.5/per requestSora 2 Stable $0.175+/per request+2 more
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Capabilities input → output
Input
Code
AudioImagesText
CodeDocuments
AudioCodeText
Output
Apps
AudioImagesText
Apps
AppsAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI API
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
8
4
7
6
Agent creation
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Agents
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Developer tools
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LLM development
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Agent memory
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Agent collaboration
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Self hosted
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API integrations
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APIs
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RAG
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API management
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Workflows
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API security
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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
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Saves
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Reviews
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Prompts
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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.