GPT-Realtime-2
GPT-Realtime-2 is OpenAI’s realtime conversational model for low-latency speech and text interaction. Its bidirectional Realtime API supports voice-agent sessions, image input, and external tools. The second generation adds configurable reasoning and stronger instruction following for complex voice workflows.
2026-05-07
Unreleased
Undisclosed proprietary architecture
Proprietary
Specifications
- Parameters
- Unreleased
- Architecture
- Undisclosed proprietary architecture
- License
- Proprietary
- Context Window
- 128,000 tokens
- Max Output
- 32,000 tokens
- Training Data Cutoff
- Sep 30, 2024
- Type
- multimodal
- Modalities
- textaudioimage
Benchmark Scores
Advanced Specifications
- Model Family
- GPT
- API Access
- Available
- Chat Interface
- Not Available
- Variants
- gpt-realtime-2
Capabilities & Limitations
- Capabilities
- audio understandingspeech generationconversationreasoningtool use
- 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