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Explore Celeste

The model library

Find your possibilities.

Choose by what you want to make.
Compare what each model can do in Celeste.

Media
Refine by provider & operationOpenAI · Speak
Operation
Providers
3 of 127 models
Select up to 3 to compare
GPT-4o Mini TTS

OpenAI

gpt-4o-mini-tts
  • audio.speak
Voice selection
TTS-1

OpenAI

tts-1
  • audio.speak
Voice selection
TTS-1 HD

OpenAI

tts-1-hd
  • audio.speak
Voice selection

Capabilities come from the published Celeste SDK. Support varies by model. Test your prompts when switching.

Side by side

Find the right fit.

Selected model capabilities
In the SDK
Provider
Operations
Streaming
Controls

These are SDK capabilities, not quality rankings. Choose a model, then evaluate it for your use case.