Tools
Rime Arcana vs Ursa
Rime Arcana 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 short
- Both: Text to speech, Many languages, API
- Only Rime Arcana states: Voice cloning
- Only Ursa states: Speech to text, Dubbing
Rime Arcana
Rime Arcana is a text-to-speech model for real-time voice apps, generating expressive multilingual speech through Rime’s API.
Plans
Starter
- starting at $0.03 / 1K characters
- $0.05 / 1K characters
- ~800 minutes free (about 800k characters)
- 20 concurrent TTS generations
- Public Slack support
Enterprise
Price on request
- Unlimited concurrent TTS generations
- Unlimited custom TTS voice clones
- SLAs + dedicated support
- Cloud, on-prem, or VPC
- BAA (HIPAA) and SOC 2 reports
Prices checked 2026-09-26 on the maker’s page.
Capabilities
- Text to speech — “Arcana is a multimodal, autoregressive text-to-speech (TTS) model that generates discrete audio tokens from text inputs.” source
- Voice cloning — “Unlimited custom TTS voice clones” source
- Many languages — “Arcana v3's TTS AI supports 10 languages out of the box, with more coming soon.” source
- API — “It’s production-ready and API-accessible from day one.” source
Security
- SOC 2 Type II — “As of May 2025, we are SOC 2 Type 2 compliant .” source
- SOC 2 — “As of May 2025, we are SOC 2 Type 2 compliant .” source
- HIPAA — “As of February 2024, we are HIPAA compliant .” source
- Not trained on your data — “We never use customer text or audio to train our models” source
Latest updates
- Arcana is Now Unlimited
Removal of character limits enables longer speech passages; Arcana accommodates WAV, PCM, and MULAW, adjustable sampling rates, and text normalization.
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