Verified· Oct 2026
Voice AI platform for voiceovers, text-to-speech APIs, and conversational agents for business workflows.
Best for: Business voiceovers and separately priced speech or agent services
Audio & VoiceAI Infrastructure & Developer APIs
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Free plan + paidInformation reviewed 2026-10-09
Cartesia
About this listing
Official documentation reviewed; examples are illustrative. No hands-on performance claim.
Official sourceCartesia provides text-to-speech, speech-to-text and managed voice-agent services.
Best suited to
Speech APIs and low-latency voice prototypes
Meet Cartesia
What Cartesia helps you do
Cartesia provides text-to-speech, speech-to-text and managed voice-agent services. It suits developers testing voice output or transcription with explicit credit, licence and telephony limits.
Best for: Speech APIs and low-latency voice prototypes.
A small task to try
- Create a short fictional narration with no impersonation
- Choose an available voice and generate a sample
- Listen for numbers, names and pauses
- Check credit use and licence eligibility before publishing commercially
Illustrative input: Read: Your demo starts at 10:30. Bring the reference checklist. Use a calm, clear pace.
Illustrative expected result: An intelligible short narration with the time spoken correctly; verify the audio yourself. This is an editorial example, not a recorded vendor test. Check it against your original material before using it.
Access and buying guidance
Free includes 20,000 credits/month and a small managed-agent allowance. Pro is listed at USD 5/month and adds a commercial-use licence. Voice-agent duration, telephony and overages have separate rates.
The free plan does not include the paid commercial-use licence. Start with the smallest useful task; keep the original input and compare the result before committing to a larger workflow.
Alternatives for a different workflow
ElevenLabs: compare a creator-friendly voice workspace. Murf.ai: produce narration in a studio-style interface.
Sources and review
Reviewed 9 October 2026 against official product documentation and official pricing / access terms. Feature access and prices can change; the linked provider terms govern your account.
What you can do
Text-to-speech
Speech-to-text
Managed voice agents
Voice controls
Streaming API
Voice cloning on paid plans
Concurrency limits
Where it helps
- Speech generation and transcription can be tested on one platform
- A recurring free credit allowance supports small experiments
- Separate concurrency pools make each service’s capacity easier to plan
What to consider
- The free plan does not include the paid commercial-use licence
- Agent minutes and phone charges are separate from speech credits
Pricing & free access
Official pricingFree plan + paid
Free includes 20,000 credits/month and a small managed-agent allowance. Pro is listed at USD 5/month and adds a commercial-use licence. Voice-agent duration, telephony and overages have separate rates.
Plan information can change. Prices and conditions are set by the provider. Information checked 2026-10-09.
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Questions about Cartesia
What is Cartesia best used for?
Cartesia provides text-to-speech, speech-to-text and managed voice-agent services. It suits developers testing voice output or transcription with explicit credit, licence and telephony limits.
Is Cartesia free to use?
Free includes 20,000 credits/month and a small managed-agent allowance. Pro is listed at USD 5/month and adds a commercial-use licence. Voice-agent duration, telephony and overages have separate rates.
How can I try Cartesia on a small task?
Create a short fictional narration with no impersonation Choose an available voice and generate a sample Listen for numbers, names and pauses Check credit use and licence eligibility before publishing commercially
What should I check before relying on Cartesia?
The free plan does not include the paid commercial-use licence Agent minutes and phone charges are separate from speech credits
Which alternatives should I compare with Cartesia?
ElevenLabs: compare a creator-friendly voice workspace. Murf.ai: produce narration in a studio-style interface.
Did this help you complete your task?
Tell us what needs improving. No account or private output required.
Report incorrect information or a broken linkReview evidence
Documentation-based review · 2026-10-09
Original editorial guidance based on linked official sources; sample inputs and outputs are illustrative.
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