A comprehensive comparison of OpenAI TTS and Speechify text-to-speech services. Compare pricing, voice quality, language support, and features to find the best TTS API for your project.
Summary: OpenAI provides better API integration and voice quality, while Speechify offers more voices including celebrity options and excellent accessibility features.
| Feature | OOpenAI TTS | SSpeechify |
|---|---|---|
| Starting Price | $15/1M chars | Free tier available |
| Pricing Model | Pay per character | Subscription |
| Voice Count | 9 | 1000+ |
| Languages | 57 languages | 60 languages |
| Models Available | TTS-1, TTS-1-HD | Natural, Standard |
| Special Features | - | Celebrity VoicesVoice CloningBrowser Extension |
| Latency | Streaming supported | 300ms |
High-quality TTS with 9 expressive voices
Fast TTS with celebrity voices and cloning
Pay per character
Subscription
OpenAI TTS high-quality tts with 9 expressive voices, while Speechify fast tts with celebrity voices and cloning. OpenAI TTS offers 9 voices across 57 languages, whereas Speechify provides 1000+ voices in 60 languages.
OpenAI TTS starts at $15/1M chars (pay per character), while Speechify starts at Free tier available (subscription). The best value depends on your usage patterns and specific needs.
Both services offer high-quality voices, but they excel in different areas. OpenAI TTS's strengths include: natural-sounding voices, easy api integration. Speechify's strengths include: huge voice library, celebrity voice options.
Speechify supports more languages with 60 languages compared to 57. However, language quality and accent options vary between services.
OpenAI TTS does not currently offer voice cloning. Speechify supports voice cloning.
For real-time applications, consider latency and streaming support. OpenAI TTS offers streaming support. Speechify has ~300ms latency.