GPT Audio 1.5 released
OpenAI · Model release
Source confirmed
GPT Audio 1.5
Released Apr 23, 2026 — see all recent releases
Decision reading
GPT Audio 1.5 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 September 10, 2026 · How the score is built
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Check this modelVoice benchmark evidence
GPT Audio 1.5 model documentation is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.
Modalities
Audio + text in, audio + text out
Context window
128,000 tokens
Audio pricing
$32 in / $64 out per 1M tokens
Provider API ID
gpt-audio-1.5
Provider snapshot · OpenAI · 2026-04-23
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-audio-1.5OpenAI GPT Audio 1.5 model documentation
- Context window
- 128KOpenAI GPT Audio 1.5 model documentation
- Maximum output
- Not sourced yet
- Knowledge cutoff
- September 30, 2024OpenAI GPT Audio 1.5 model documentation
- Input modalities
- text, audioOpenAI GPT Audio 1.5 model documentation
- Output modalities
- text, audioOpenAI GPT Audio 1.5 model documentation
- Parameters
- Not disclosed by the provider
- Availability
- OpenAI APIOpenAI GPT Audio 1.5 model documentation
- Cloud regions
- Not tracked yet
- Lifecycle
- activeOpenAI GPT Audio 1.5 model documentation
- API capabilities
- Tool calling, structured outputs, and batch support are not tracked yet
- Prompt caching
- Not documented in the pricing recordOpenAI 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.
Apr 23, 2026 · you are here
GPT Audio 1.5Not publicly ranked · $2.5 / $10
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 Audio 1.5, 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 Audio 1.5 is a proprietary model with a 128K context window. No explicit reasoning mode is documented in this profile.
Available on the OpenAI Chat Completions API as gpt-audio-1.5 (launched April 23, 2026 alongside GPT-5.5) with text and audio input and output, a 128,000-token context, 16,384-token maximum output, streaming, and function calling. No other endpoint accepts the model.
GPT Audio 1.5 is a display-only audio-in, audio-out model for the Chat Completions API. Voice-protocol results remain separate from BenchLM’s weighted text-model ranking.
The profile has no source-displayable benchmark row yet.
Radar
Full release historyGPT Audio 1.5 release history
Radar confirmed these at the source. Use GPT Audio 1.5 in your work? Explore Radar to follow supported changes and choose your alerts.
Frequently asked questions
How does GPT Audio 1.5 perform overall in AI benchmarks?
GPT Audio 1.5 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 Audio 1.5 have full benchmark coverage on BenchLM?
No. GPT Audio 1.5 currently has 0 source-displayable rows across 434 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 Audio 1.5?
GPT Audio 1.5 has a documented context window of 128K. 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 Audio 1.5 with every tracked model482 comparisons
Last updated September 10, 2026. Runtime fields remain blank until a sourced snapshot exists.
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