Haystack vs Question Base vs Langflow vs Pipecat

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

Your tool
Haystack
vs
Competitor 1
Question Base
Competitor 2
Langflow
Competitor 3
Pipecat
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.
Competitor Question Base
questionbase.com
Question Base is an AI answer agent that lives in Slack and responds to employee questions using your company's documentation, wikis and past conversations.
Competitor Langflow
langflow.org
Drag and drop AI
Competitor Pipecat
pipecat.ai
Pipecat is an open-source Python framework for building voice and multimodal AI agents that talk in real time.
Traffic estimated monthly website traffic
Monthly visits
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215.3Kvisits/mo
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MoM change
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▼ 0.7%
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6-month growth
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-4.9%
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Global rank web
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#217,191
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Avg. last 3 months
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225.2K
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Bounce rate lower is better
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44%
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Pages / visit
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2.2
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Visit duration
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1m 04s
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Traffic sources
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● Direct 76% · ● Referral 24%
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HaystackQuestion BaseLangflowPipecat
073.8K147.7K221.5K295.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3K100K1MLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
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Paid
Free
Free
Starting price
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$5per month
Free
Free
Free tier
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Free trial
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API access
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Plans
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Proof of Concept $1,000Annual Pro $6,000/yrEnterprise+ $20,000/yr
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Open source Free
Capabilities input → output
Input
CodeDocuments
DocumentsText
Text
AudioTextVideo
Output
Apps
Text
Apps
AudioText
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
6
9
10
Agents
Agent creation
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Developer tools
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LLM development
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Chatbots
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Self hosted
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Knowledge bases
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No-code
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RAG
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Slack
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Voice agents
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Development
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Knowledge optimization
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Voice
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Voice assistance
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Workflows
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APIs
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Agent collaboration
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Agent memory
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Agent testing
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Call agents
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Knowledge
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
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▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
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.