Tools
Sonic vs Ursa
Sonic or Ursa? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.
In inglese
In short
- Both: Text to speech, Speech to text, Dubbing, Many languages, API
- Only Sonic states: Voice cloning, Commercial use
Sonic
Sonic is Cartesia's text-to-speech model for real-time voice applications, with voice cloning, localization, and multilingual speech.
Plans
Free
Free
- 20K credits / month
- $1 prepaid agents / month
- Text to Speech
- Speech to Text
Pro
- $5 /mo
- 100K credits / month
- $5 prepaid agents / month
- Commercial use license
- Instant voice cloning
Startup
- $49 /mo
- 1.25M credits / month
- $49 prepaid agents / month
- Pro voice cloning
- Organizations
Scale
- $299 /mo
- 8M credits / month
- $299 prepaid agents / month
- Priority support
- High concurrency limits
Enterprise
Price on request
- Custom credits & agent usage
- Volume pricing
- Custom concurrency limits
- DPAs and BAAs for compliance
- Shared Slack channel
- SSO
Prices checked 2026-09-24 on the maker’s page.
Capabilities
- Text to speech — “Sonic: The fastest and most natural text to speech model” source
- Voice cloning — “Clone any voice instantly with 10 seconds of audio.” source
- Speech to text — “Speech to Text” source
- Dubbing — “Dubbing Go global with localized voices and accents for every language.” source
- Many languages — “Reach international markets with Sonic — 44 languages and a wide range of accents, all with native-speaker quality voices.” source
- Commercial use — “Commercial use license” source
- API — “Access our models via API and bring a voice agent into production in minutes.” source
Security
- SOC 2 Type II — “Soc 2 Type II Report” source
- SOC 2 — “Soc 2 Type II Report” source
- GDPR — “Compliance PCI DSS 4.0.1 HIPAA SOC 2 Type 2 GDPR” source
- HIPAA — “Cartesia AI Inc. HIPAA.pdf” source
Latest updates
- Introducing Multilingual Voices
Introducing Multilingual Voices.
- Introducing Sonic-3.6 (Sonic-3.6)
Listeners preferred it in up to 93% of head-to-head tests across fifteen locales.
- New to Ink-2: keyterm prompting and configurable turn detection (Ink-2)
Keyterm prompting improves transcription accuracy, and turn detection tunes endpointing for speed or accuracy.
Ursa
Ursa is Speechmatics’ speech-to-text model family for transcribing live and recorded audio across languages, accents, and speakers.
Plans
Free
Free
- No credit card required
- $100 credit to get started
- For developers and early exploration
- Speech-to-Text: 55+ languages
- 2 concurrent real-time sessions
- Text-to-Speech
Pro
- from $0.129/hr
- $0.129/hr
- $0.24/hr
- $0.40/hr
- $0.24/hr
- $0.43/hr
- $0.16/hr
- $0.011/1k characters
- 55+ languages
- 50 concurrent real-time sessions
- 10 file jobs per second
- Multi-region cloud options
- Low-latency Text-to-Speech
- Online email support
Enterprise
Price on request
- All our features, including audio alignment
- No rate limits
- Privacy-first deployment options
- Custom models
- SaaS or On-premises deployment
- Prioritized service and support
Prices checked 2026-09-24 on the maker’s page.
Capabilities
- Text to speech — “Text-to-Speech” source
- Speech to text — “Real-time speech-to-text is here” source
- Dubbing — “Our AI model supports 55+ languages for transcription, with 69 pairs supported for AI translation.” source
- Many languages — “Transcribe 55+ languages with a single model, even when speakers switch between languages naturally throughout a conversation.” source
- API — “Speech-to-text API built for every language and accent” source