Vapi vs Hyperbrowser vs Haystack vs PolyAI
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
Vapi
vs
Vapi
Competitor 1
Hyperbrowser
Hyperbrowser
Competitor 2
Haystack
Haystack
Competitor 3
PolyAI
PolyAICompare
4 tools · best value per row highlighted
Your tool
Vapi
Vapi
vapi.ai
Vapi is a developer platform for building, testing and deploying voice AI agents that talk to customers on the phone.
Competitor
Hyperbrowser
Hyperbrowser
hyperbrowser.ai
Hyperbrowser delivers cloud-based browser infrastructure designed for AI agents and automated applications
Competitor
Haystack
Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Competitor
PolyAI
PolyAI
poly.ai
PolyAI is an enterprise voice AI company whose Agentic Dialog Platform builds, runs and refines dialog agents for customer conversations.
Traffic estimated monthly website traffic
Monthly visits
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67.3Kvisits/mo
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MoM change
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▲ 1.2%
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6-month growth
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+0.7%
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Global rank web
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#584,815
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Avg. last 3 months
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68.4K
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Bounce rate lower is better
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42%
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Pages / visit
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1.7
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Visit duration
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10s
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Traffic sources
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● Direct 92% · ● Referral 7%
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VapiHyperbrowserHaystackPolyAI
Pricing
Model
Freemium
Freemium
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Starting price
$29per month
$30per month · free tier available
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Free tier
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Free trial
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API access
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Plans
No Success Package FreeCore $29/moPro $999/moPremier Custom
Free FreeStartup $30/moScale $100/moEnterprise Custom
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Capabilities input → output
Input
AudioText
CodeWeb pages
CodeDocuments
AudioText
Output
AppsAudio
Data
Apps
AppsAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Tasks what each tool can do · 0 shared · core partial
Tasks covered
11
9
7
9
Agent creation
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Developer tools
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Voice agents
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Call agents
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Call center automation
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Customer support
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Agents
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Call answering
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Calls
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Browser
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LLM development
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RAG
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APIs
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Customer calls
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Customer support automation
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Web scraping
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Webscraping
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Website crawling
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Agent memory
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Agent testing
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Captcha solving
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Chatbots
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MCP
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Markdown conversion
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Self hosted
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 0
▲ 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.