Haystack vs Lambda vs Voiceflow vs LangChain

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

Your tool
Haystack
vs
Competitor 1
Lambda
Competitor 2
Voiceflow
Competitor 3
LangChain
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 Lambda
lambda.ai
Lambda is a GPU cloud built for training and serving AI models.
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Competitor Voiceflow
voiceflow.com
Design conversations visually
Make main Remove
Competitor LangChain
langchain.com
Framework for building with large language models
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
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385Kvisits/mo
3.4Mvisits/mo
MoM change
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—
▼ 5.8%
▲ 0.7%
6-month growth
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-35.3%
+21.0%
Global rank web
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#93,201
#13,384
Avg. last 3 months
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407.5K
3.3M
Bounce rate lower is better
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38%
42%
Pages / visit
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5.2
6.2
Visit duration
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3m 07s
5m 29s
Traffic sources
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● Direct 75% · ● Referral 24%
● Direct 73% · ● Referral 24%
HaystackLambdaVoiceflowLangChain
0850.7K1.7M2.6M3.4MVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4M100K1M10MVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
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Paid
Freemium
Freemium
Starting price
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Free tier
$39per month · free tier available
Free tier
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Free trial
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API access
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Plans
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On-demand instances (8x GPU) CustomOn-demand instances (1x GPU) Custom1-Click Clusters CustomReserved / Superclusters Custom
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Developer FreePlus $39/moEnterprise Custom/mo
Capabilities input → output
Input
CodeDocuments
CodeData
DocumentsText
CodeText
Output
Apps
Apps
Apps
Apps
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Developer Tools
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
3
13
6
Agents
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Agent creation
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Developer tools
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LLM development
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Customer support
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Customer support chatbot
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GPU infrastructure
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RAG
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Voice agents
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Call agents
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Call center automation
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Calls
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Chatbot building
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Chatbots
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Development
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Agent memory
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Agent testing
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Call answering
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Model training
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No-code
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Self hosted
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Website to chatbot
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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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▲ 1
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Saves
0
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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.