GPT-Audio-1.5
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