GPT-4o Mini TTS (2025-12-15)

gpt-4o-mini-tts-2025-12-15

gpt-4o-mini-tts-2025-12-15

Latest snapshot of GPT-4o Mini TTS with voice instructions support

Approx. Price

$13.26 per 1M characters

Model Type

text-to-speech

Available voices

Built-in voices accepted by NanoGPT for this model. Custom or cloned voice IDs may also be supported.

alloy

ash

ballad

coral

echo

fable

nova

onyx

sage

shimmer

verse

marin

cedar

Compare GPT-4o Mini TTS (2025-12-15) with similar models from the same provider or model family.

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OpenAI's efficient speech-to-text model with improved accuracy over Whisper

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Standard quality text-to-speech model with low latency