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SPECIFICTION
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Inworld TTS vs OpenAI Text-to-Speech

Inworld TTS

inworld.ai

OpenAI Text-to-Speech

developers.openai.com

Side by side

FigureInworld TTSOpenAI Text-to-Speech
Price from$25/mo$0.60/mo
Free planYes—
Free trial——
Open source——
WebYes—
APIYesYes
Plans published63
Spec score · Text-to-speech tools9.1 (#12)8.3 (#74)
Spec score · Text-to-Speech Software8.9 (#18)7.9 (#123)
Spec score · AI voice generators8.8 (#6)7.7 (#23)
API accessYesYes
Commercial useYesYes
Export formatsMP3,WAV,Opusmp3,opus,aac,flac,wav,pcm
Languages20057
Maximum input400004096
Platformsweb,apiapi
Voice cloningYesYes

Plans

Inworld TTS

  • On-DemandFree
  • Creator$25 a month
  • Builder$100 a month
  • Developer$300 a month
  • Growth$1,500 a month
  • EnterprisePriced on request

Inworld TTS pricing →

OpenAI Text-to-Speech

  • TTS-1$15 a month
  • TTS-1 HD$30 a month
  • GPT-4o Mini TTS API usage$0.60 a month

OpenAI Text-to-Speech pricing →

In their own words

Inworld TTS

Inworld TTS has no write-up on Specifiction yet; its figures are above.

Visit inworld.ai

OpenAI Text-to-Speech

OpenAI Text-to-Speech has no write-up on Specifiction yet; its figures are above.

Visit developers.openai.com