OpenAI logo

GPT-Audio-1.5

OpenAIProprietaryPending Human Review

GPT-Audio-1.5 is OpenAI’s audio conversation model for speech and text inputs and outputs through the Chat Completions API. It is designed for language interaction rather than transcription-only or TTS-only use. The 1.5 release updates the conversational audio model, retaining the documented endpoint and language interface.

2026-02-23
Unreleased
Undisclosed proprietary architecture
Proprietary

Specifications

Parameters
Unreleased
Architecture
Undisclosed proprietary architecture
License
Proprietary
Context Window
128,000 tokens
Max Output
16,384 tokens
Training Data Cutoff
Sep 30, 2024
Type
multimodal
Modalities
textaudio

Benchmark Scores

Advanced Specifications

Model Family
GPT
API Access
Available
Chat Interface
Not Available
Variants
gpt-audio-1.5

Capabilities & Limitations

Capabilities
audio understandingspeech generationconversation
Known Limitations
Can produce incorrect factual claims or code; important results require independent verification.Audio recognition can fail for unclear speech, noise, or unusual names.
Notable Use Cases
voice assistantsspoken customer supportinteractive audio applications
Function Calling Support
Yes
Tool Use Support
Yes

Related Models