GPT-4o mini TTS
OpenAI · GPT-4o Audio
OpenAI text-to-speech model for responsive, API-first voice output workflows.
Overview
Freshness note: Model capabilities, limits, and pricing can change quickly. This profile is a point-in-time snapshot last verified on February 15, 2026.
GPT-4o mini TTS is OpenAI’s text-to-speech model tier for generating voice output in interactive applications and automation flows. It is intended for teams that need fast, integrated TTS in product pipelines.
Capabilities
The model supports programmatic voice generation for assistant responses, narrated content, and audio feedback loops. It is especially useful in systems already using OpenAI APIs for reasoning and orchestration.
Technical Details
For TTS, token context and max output fields are set to 0 in this content system and should be interpreted as N/A. Operational evaluation should prioritize voice quality, latency, and stability across languages and speaking styles.
Pricing & Access
Available via OpenAI audio model APIs. Because pricing and available voices can change, confirm current details through official OpenAI documentation before launch.
Best Use Cases
Best for voice assistants, spoken notifications, educational narration, and multimodal interfaces needing low-friction speech output.
Comparisons
Compared with Eleven v3, GPT-4o mini TTS may offer tighter OpenAI ecosystem integration. Compared with Realtime voice pipelines, it can be simpler for non-live or semi-live generation flows. Benchmark references can inform direction, but product-specific listening tests should drive final selection.