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Model profile · OpenAI

GPT-4o mini TTS

EstablishedReleased Mar 20, 2025ProprietaryNon-Reasoning2K contextOpenAI model documentation

Released Mar 20, 2025 see all recent releases

GPT-4o mini TTS is tracked, but not publicly ranked yet. The profile exposes 0 sourced benchmark rows and leaves unsupported fields blank until a published record exists.

Data as of August 4, 2026 · How the score is built

Voice benchmark evidence

Audio Realism Benchmark is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.

Owner rank
#8 of 12
Elo-style rating
1,011
BT uncertainty
±18.9
Win rate
42.8%
Battles
362
Avg. generation
2.01s
Provider API ID
gpt-4o-mini-tts
155 wins · 207 losses · owner snapshot 2026-08-04

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
Not published
Context window
2K
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 record
Self-host
Weights are not published
Rate limits
Not tracked yet

Lineage

The sequence follows explicit supersedes links. 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 TTS

Not publicly ranked · Price not listed

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.

Frequently asked 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 381 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 reported context window of 2K in the exact-model catalog record. The value stays visible, but the profile marks its source link as unavailable instead of presenting it as directly documented. Maximum output length remains separate because providers often publish a different limit.

Last updated August 4, 2026. Runtime fields remain blank until a sourced snapshot exists.

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