GPT-4O Mini-TTS
GPT-4O Mini-TTS is a text-to-speech model developed by OpenAI, capable of converting text into speech. It is genuinely best at generating spoken output from textual input, leveraging its large context window of 128,000 tokens to process extensive texts.
Input
Output
Context
128K
Max Output
-
Parameters
-
Technical Specifications
Model TypeAudio
Context Window128,000 tokens
Max Output TokensNot available
ParametersNot available
Release DateMar 19, 2025
Training CutoffNot available
Licenseproprietary
Open SourceNo
Input Modalities
Text
Output Modalities
Audio
Capabilities
Resources & Links
proprietary, Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Jun 23, 2026
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