Vapi vs Rivet vs Haystack vs CloudTalk | AI Voice Agents

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

Your tool
Vapi
vs
Competitor 1
Rivet
Competitor 2
Haystack
Competitor 3
CloudTalk | AI Voice Agents
Compare
4 tools · best value per row highlighted
Your tool Vapi
vapi.ai
Vapi is a developer platform for building, testing and deploying voice AI agents that talk to customers on the phone.
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Competitor Rivet
rivet.ironcladapp.com
Rivet is an open-source visual programming environment for building AI agents with large language models.
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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 CloudTalk | AI Voice Agents
cloudtalk.io
CloudTalk AI Voice Agents answer and make phone calls around the clock and sound natural doing it.
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Traffic estimated monthly website traffic
Monthly visits
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746.4Kvisits/mo
MoM change
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▲ 24.7%
6-month growth
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+96.5%
Global rank web
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#59,084
Avg. last 3 months
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606.8K
Bounce rate lower is better
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35%
Pages / visit
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5.2
Visit duration
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4m 57s
Traffic sources
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● Direct 86% · ● Referral 8%
VapiRivetHaystackCloudTalk | AI Voice Agents
0186.6K373.2K559.8K746.4KCloudTalk | AI Voice Agents · 346.4KCloudTalk | AI Voice Agents · 314.5KCloudTalk | AI Voice Agents · 422.8KCloudTalk | AI Voice Agents · 379.8KCloudTalk | AI Voice Agents · 474.1KCloudTalk | AI Voice Agents · 436.3KCloudTalk | AI Voice Agents · 475.8KCloudTalk | AI Voice Agents · 598.4KCloudTalk | AI Voice Agents · 746.4K100K1MCloudTalk | AI Voice Agents · 346.4KCloudTalk | AI Voice Agents · 314.5KCloudTalk | AI Voice Agents · 422.8KCloudTalk | AI Voice Agents · 379.8KCloudTalk | AI Voice Agents · 474.1KCloudTalk | AI Voice Agents · 436.3KCloudTalk | AI Voice Agents · 475.8KCloudTalk | AI Voice Agents · 598.4KCloudTalk | AI Voice Agents · 746.4KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Free
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Freemium
Starting price
$29per month
Free
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$25per month · free tier available
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
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Plans Custom/mo
Capabilities input → output
Input
AudioText
Text
CodeDocuments
AudioDocuments
Output
AppsAudio
Apps
Apps
Audio
Skill level
Advanced
Advanced
Advanced
Intermediate
Categories
Business & MarketingVoice & SpeechAI Call CenterAI Customer Service+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Business & MarketingAI Call CenterAI Customer Service
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
11
5
7
12
Agent creation
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Developer tools
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Voice agents
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Agents
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Call agents
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Call center automation
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LLM development
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Call answering
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Customer calls
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Customer support
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Calls
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RAG
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APIs
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No-code
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Receptionist
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Sales calls
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Virtual receptionist
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Agent memory
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Agent testing
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Customer support automation
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Sales
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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
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Saves
0
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Reviews
0
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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.