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Octave vs Sonic

Octave or Sonic? 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, Voice cloning, Many languages, API
  • Only Sonic states: Speech to text, Dubbing, Commercial use

Octave

Octave is Hume's text-to-speech API for expressive speech, custom voices, emotional delivery, and real-time audio streaming.

Plans

Free

Free

  • 10,000 monthly included characters
  • 5 minutes of monthly EVI usage included
  • 15 requests per minute
  • 1 concurrent connection
  • Unlimited voice cloning (create and use)

Starter

  • $3 / month
  • 30,000 monthly included characters
  • 40 minutes of monthly EVI usage included
  • 5 concurrent connections
  • Unlimited voice cloning (create and use)

Creator

  • $14 / month
  • 140,000 monthly included characters
  • 200 minutes of monthly EVI usage included
  • 75 requests per minute
  • 5 concurrent connections
  • Unlimited voice cloning (create and use)

Pro

  • $70 / month
  • 1,000,000 monthly included characters
  • 1,200 minutes of monthly EVI usage included
  • 10 concurrent connections
  • Unlimited voice cloning (create and use)

Scale

  • $200 / month
  • 3,300,000 monthly included characters
  • 5,000 minutes of monthly EVI usage included
  • 20 concurrent connections
  • 3 team seats
  • Unlimited voice cloning (create and use)

Business

  • $500 / month
  • 10,000,000 monthly included characters
  • 12,500 minutes of monthly EVI usage included
  • 30 concurrent connections
  • 5 team seats
  • Unlimited voice cloning (create and use)

Enterprise

Price on request

  • As much text-to-speech usage as you need
  • As much EVI usage as you need
  • As many concurrent connections as you need
  • Unlimited team seats
  • Unlimited voice cloning (create, use and access via API)
  • Slack support

Prices checked 2026-09-25 on the maker’s page.

Capabilities

  • Text to speech — “Generate expressive, natural-sounding speech that conveys the full range of human emotion.” source
  • Voice cloning — “Choose from a curated library of expressive voices, clone any voice from a sample, or design entirely new voices from natural language descriptions.” source
  • Many languages — “Native-quality speech in 16+ languages with authentic accents.” source
  • API — “Octave is Hume's text-to-speech API with emotional intelligence.” source

Latest updates

About Octave

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

About Sonic