Cartesia alternatives

At a glance

We list 7 other voice tools as alternatives to Cartesia: AssemblyAI, Deepgram, ElevenLabs, Retell AI, Superwhisper, Vapi and Wispr Flow.
AssemblyAI, ElevenLabs, Superwhisper and Wispr Flow have a free plan.
AssemblyAI, Deepgram, ElevenLabs, Retell AI and Vapi work with Twilio, as Cartesia does.
AssemblyAI and Deepgram work with LiveKit, as Cartesia does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.

7 alternatives

Listed alphabetically. A tool is ranked by its reviews once it has 3.

AssemblyAI
Voice AI infrastructure for builders, with pre-recorded and real-time speech-to-text and voice agent APIs
No reviews yet
Choose it over Cartesia for: integration with Zapier, Zoom or Vapi.
Free plan
Yes
Platforms
API
Integrations shared with Cartesia
Twilio, LiveKit, Pipecat
Main features
Pre-recorded Speech-to-Text API, Realtime Speech-to-Text API, Speech Understanding API
Security and compliance
SOC 2, SSO
Compare with Cartesia
Be the first to review
Deepgram
Speech-to-text, text-to-speech and voice agent APIs for real-time, enterprise voice AI
No reviews yet
Choose it over Cartesia for: integration with Amazon Connect or Vapi; GDPR or HIPAA.
Plans
Pay as you go: $0.0043, Growth: $4K+ (as of October 19, 2026)
Platforms
API
Integrations shared with Cartesia
Twilio, LiveKit, Pipecat
Main features
Voice agent API, Speaker diarization, Cloud or self-hosted deployment
Security and compliance
SOC 2, GDPR, HIPAA
Compare with Cartesia
Be the first to review
ElevenLabs
Create lifelike speech with an AI voice generator and voice agents platform, in 90+ languages
No reviews yet
Choose it over Cartesia for: integration with Slack or Stripe; HIPAA.
Free plan
Yes
Paid plans from
Pro, $99 per month (as of October 19, 2026)
Platforms
API
Integrations shared with Cartesia
Twilio
Main features
Text to speech, Speech to text, Voice cloning
Security and compliance
HIPAA, SSO
Compare with Cartesia
Be the first to review
Retell AI
Build, deploy, and manage AI voice agents that sound human, execute tasks, and scale
No reviews yet
Choose it over Cartesia for: Web; integration with Salesforce, HubSpot or Zapier; ISO 27001, GDPR or HIPAA.
Paid plans from
Pay as you go, $0.07 per minute for AI voice agents, from $0 (as of October 20, 2026)
Platforms
Web, API
Integrations shared with Cartesia
Twilio
Main features
Call transfer, Book appointments, Knowledge base
Security and compliance
SOC 2, ISO 27001, GDPR, HIPAA, SSO
Compare with Cartesia
Be the first to review
Superwhisper
AI voice to text for macOS, Windows, iOS and Android. Dictate in any app, offline or in the cloud
No reviews yet
Choose it over Cartesia for: macOS, Windows, iOS or Android; integration with Slack, Notion or Cursor; HIPAA.
Free plan
Yes
Plans
Free: $0, Enterprise: Custom (as of October 19, 2026)
Platforms
macOS, Windows, iOS, Android
Integrations shared with Cartesia
None in common
Main features
Dictation in any app, Offline transcription, Custom modes
Security and compliance
SOC 2, HIPAA
Compare with Cartesia
Be the first to review
Vapi
Build, test and deploy voice AI agents. The platform for developers creating conversational voice AI
No reviews yet
Choose it over Cartesia for: integration with Deepgram, OpenAI or ElevenLabs; HIPAA.
Paid plans from
Core, $29 per month, plus usage (as of October 19, 2026)
Platforms
API
Integrations shared with Cartesia
Twilio
Main features
Testing and simulation, Call monitoring, Telephony and SIP
Security and compliance
SOC 2, HIPAA, SSO
Compare with Cartesia
Be the first to review
Wispr Flow
Voice-to-text AI that turns speech into clear, polished writing in every app
No reviews yet
Choose it over Cartesia for: macOS, Windows, iOS or Android; integration with Zoom, Google Meet or Microsoft Teams; ISO 27001 or HIPAA.
Free plan
Yes
Plans
Free: $0, Enterprise: Custom (as of October 19, 2026)
Platforms
macOS, Windows, iOS, Android
Integrations shared with Cartesia
None in common
Main features
Personal dictionary, Snippets, AI meeting notetaker
Security and compliance
SOC 2, ISO 27001, HIPAA, SSO
Compare with Cartesia
Be the first to review