GPT-4o mini TTS
Released Mar 20, 2025 — see all recent releases
Data as of September 18, 2026 · How the score is built
GPT-4o mini TTS will be repriced, updated or retired. Get each notice with its source and date. Follow model changes
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Voice benchmark evidence
Audio Realism Benchmark is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.
Spec sheet
Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.
- API model ID
- gpt-4o-mini-ttsOpenAI GPT-4o mini TTS model documentation
- Context window
- 2KOpenAI GPT-4o mini TTS model documentation
- Maximum output
- Not sourced yet
- Knowledge cutoff
- Not sourced yet
- Input modalities
- Not sourced yet
- Output modalities
- Not sourced yet
- Parameters
- Not disclosed by the provider
- Availability
- Hosted speech-generation API.
- Cloud regions
- Not tracked yet
- Lifecycle
- Established
- API capabilities
- Tool calling, structured outputs, and batch support are not tracked yet
- Prompt caching
- Not documented in the pricing recordOpenAI GPT-4o mini TTS model documentation
- Self-host
- Weights are not published
- Rate limits
- Not tracked yet
Lineage
The sequence follows explicit supersedes links. A successor's displayed score stays at least 0.1 points above its predecessor; raw benchmark rows do not move. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.
Mar 20, 2025 · you are here
GPT-4o mini TTSNot publicly ranked · $0.6 / $12
Base entry
How to read this profile
The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.
We track GPT-4o mini TTS, but no weighted text-model benchmark result is published on the site yet. This page shows the metadata and separate protocol evidence we can verify now; a BenchLM score will appear only if compatible public evaluations land.
GPT-4o mini TTS is a proprietary model with a 2K context window. No explicit reasoning mode is documented in this profile.
Hosted speech-generation API.
This text-to-speech model is tracked through a separate voice-experience benchmark and does not participate in BenchLM's weighted text-model ranking.
The profile has no source-displayable benchmark row yet.
Questions
How does GPT-4o mini TTS perform overall in AI benchmarks?
GPT-4o mini TTS does not have any source-displayable benchmark rows yet, so this profile does not assign a public score or rank. Documented specifications remain visible, while score-led charts and claims stay unavailable until a published evaluation can be attached to the exact model.
Does GPT-4o mini TTS have full benchmark coverage on BenchLM?
No. GPT-4o mini TTS currently has 0 source-displayable rows across 446 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.
What is the context window size of GPT-4o mini TTS?
GPT-4o mini TTS has a documented context window of 2K. That figure is the maximum combined prompt and retained-conversation space reported for this exact model; it is not the maximum output length. The profile keeps output limits separate because providers often publish those limits independently.
Compare GPT-4o mini TTS with every tracked model490 comparisons
Last updated September 18, 2026. Runtime fields remain blank until a sourced snapshot exists.
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