Cartesia vs Deepgram vs Defapi vs Inworld AI

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

Your tool
Cartesia
vs
Competitor 1
Deepgram
Competitor 2
DDefapi
Competitor 3
Inworld AI
Compare
4 tools · best value per row highlighted
Your tool Cartesia
cartesia.ai
Cartesia is a voice AI company that provides one API for speech generation, transcription and production voice agents fast enough for live conversation.
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Competitor Deepgram
deepgram.com
Deepgram is a voice AI platform that exposes speech-to-text, text-to-speech and conversational agents through APIs.
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Competitor DDefapi
defapi.org
You know how managing multiple AI provider integrations usually means maintaining separate codebases for each vendor
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Competitor Inworld AI
inworld.ai
NPCs that actually think
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Traffic estimated monthly website traffic
Monthly visits
—
—
2.4Kvisits/mo
392.1Kvisits/mo
MoM change
—
—
▼ 42.6%
▼ 19.8%
6-month growth
—
—
-86.2%
-9.5%
Global rank web
—
—
#4,650,820
#85,951
Avg. last 3 months
—
—
4.8K
458K
Bounce rate lower is better
—
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36%
43%
Pages / visit
—
—
1.4
4.5
Visit duration
—
—
7s
2m 04s
Traffic sources
—
—
—
● Direct 90% · ● Referral 9%
CartesiaDeepgramDefapiInworld AI
0211.7K423.3K635K846.6KDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KInworld AI · 211.9KInworld AI · 693.5KInworld AI · 846.6KInworld AI · 558.9KInworld AI · 433.3KInworld AI · 461.9KInworld AI · 489.3KInworld AI · 493.4KInworld AI · 488.6KInworld AI · 392.1K1K10K100K1MDefapi · 11.1KDefapi · 13KDefapi · 12.4KDefapi · 17.7KDefapi · 9.4KDefapi · 6.2KDefapi · 7.6KDefapi · 4.2KDefapi · 2.4KInworld AI · 211.9KInworld AI · 693.5KInworld AI · 846.6KInworld AI · 558.9KInworld AI · 433.3KInworld AI · 461.9KInworld AI · 489.3KInworld AI · 493.4KInworld AI · 488.6KInworld AI · 392.1KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
Paid
Freemium
Starting price
$5per month · free tier available
Free tier
—
$25per month
Free tier
–
–
Free trial
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–
API access
Plans
Free FreePro $5/moStartup $49/moScale $299/mo+1 more
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
On-Demand Custom/freeCreator $25/moBuilder $100/moDeveloper $300/mo+1 more
Capabilities input → output
Input
TextAudio
TextAudio
AudioImagesText
AudioText
Output
TextAudio
TextAudio
AudioImagesText
TextAudio
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Business & MarketingVoice & SpeechAI Call CenterAI Text-to-Speech+2 more
Development & CodeVoice & SpeechAI APIAI Text-to-Speech+2 more
Development & CodeAI API
Development & CodeVoice & SpeechAI APIAI Text-to-Speech+2 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
10
9
4
10
APIs
Text to speech
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Voice agents
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Transcription
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Voice assistance
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Developer tools
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–
Speech recognition
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Speech synthesis
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API integrations
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–
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API management
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–
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Call agents
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–
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Chatting with NPCs
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–
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Game characters
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–
–
Voice
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–
–
API security
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–
–
Call center automation
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–
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Call transcriptions
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–
–
Development
–
–
–
Gaming
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 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.