Vapi vs Deepgram Voice Agent API vs Defapi

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

Your tool
Vapi
vs
Competitor 1
Deepgram Voice Agent API
Competitor 2
DDefapi
Competitor 3
Compare
3 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.
Competitor Deepgram Voice Agent API
deepgram.com
The Deepgram Voice Agent API is one real-time API that combines speech recognition, language model orchestration and speech synthesis, so developers do not have to stitch separate services together.
Competitor DDefapi
defapi.org
You know how managing multiple AI provider integrations usually means maintaining separate codebases for each vendor
Traffic estimated monthly website traffic
Monthly visits
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2.4Kvisits/mo
MoM change
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▼ 42.6%
6-month growth
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-86.2%
Global rank web
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#4,650,820
Avg. last 3 months
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4.8K
Bounce rate lower is better
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36%
Pages / visit
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1.4
Visit duration
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7s
Traffic sources
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VapiDeepgram Voice Agent APIDefapi
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
Paid
Starting price
$29per month
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Free tier
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Free trial
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API access
Plans
No Success Package FreeCore $29/moPro $999/moPremier Custom
Pay As You Go CustomGrowth $4,000/yrEnterprise 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
Capabilities input → output
Input
AudioText
AudioText
AudioImagesText
Output
AppsAudio
AudioText
AudioImagesText
Skill level
Advanced
Advanced
Advanced
Categories
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
9
4
APIs
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Voice agents
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Call center automation
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Customer calls
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API integrations
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API management
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Call agents
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Customer support
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Text to speech
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Transcription
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Voice
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Voice assistance
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API security
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Call answering
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Calls
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Speech to speech
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
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.