Model Details
Owner
OpenAI
Released
Jul 2026
Status
Active
Context Length
128K
Max Output
32K
Provider
OpenAI
Where is gpt-realtime-2.1-mini a perfect fit?
GPT-Realtime-2.1 mini is OpenAI’s distilled realtime reasoning model designed for faster, lower-cost voice interactions. It improves alphanumeric recognition over the earlier GPT-Realtime mini while supporting reasoning and tool use.
- High-volume speech-to-speech assistants where API cost matters
- Customer-support, sales, appointment, and call-center voice agents
- Realtime applications requiring low latency and high throughput
- Voice workflows involving function calls and external tools
- Applications handling names, numbers, confirmation codes, addresses, and other alphanumeric information
- Interactive voice experiences delivered over WebRTC, WebSocket, or SIP
- Multimodal agents combining audio conversations with text and image inputs
- Applications that need reasoning capabilities but don't require the higher-cost GPT-Realtime-2.1
- High-volume speech-to-speech assistants where API cost matters
- Customer-support, sales, appointment, and call-center voice agents
- Realtime applications requiring low latency and high throughput
- Voice workflows involving function calls and external tools
- Applications handling names, numbers, confirmation codes, addresses, and other alphanumeric information
- Interactive voice experiences delivered over WebRTC, WebSocket, or SIP
- Multimodal agents combining audio conversations with text and image inputs
- Applications that need reasoning capabilities but don't require the higher-cost GPT-Realtime-2.1
Quick Model Estimate
Your GPT-5 Cost Estimate
💰 Total Cost
USD 3.00
for 1000 input + 1000 output tokens
📥 Input (1000 × $10.000000)
USD 1.5000
📤 Output (1000 × $20.000000)
USD 1.5000
Cost Breakdown
📥 Input 50%
📤 Output 50%
Prices updated daily from official provider data.
