We’ve released two new Realtime models for building low-latency voice and multimodal experiences: gpt-realtime-2.1 and gpt-realtime-2.1-mini.
With this release, we’ve also reduced p95 latency by at least 25% across Realtime voice models through improved caching.
gpt-realtime-2.1 updates GPT-Realtime-2 with improved alphanumeric recognition, silence and noise handling, and interruption behavior. It supports speech-to-speech interactions with configurable reasoning effort, instruction following, and tool use for more complex voice-agent workflows.
gpt-realtime-2.1-mini is a mini reasoning model for faster, lower-cost realtime voice interactions.
A quick way to choose:
- Use
gpt-realtime-2.1when you want the strongest realtime reasoning, tool use, instruction following, and voice-agent behavior. - Use
gpt-realtime-2.1-miniwhen you want a faster, more cost-efficient option for realtime voice experiences.
Pricing
| Model | Text input | Text cached input | Text output | Audio input | Audio cached input | Audio output | Image input | Image cached input |
|---|---|---|---|---|---|---|---|---|
gpt-realtime-2.1 |
$4.00 | $0.40 | $24.00 | $32.00 | $0.40 | $64.00 | $5.00 | $0.50 |
gpt-realtime-2.1-mini |
$0.60 | $0.06 | $2.40 | $10.00 | $0.30 | $20.00 | $0.80 | $0.08 |
Try them in the Playground and let us know what you build with these models and how they perform in your realtime voice workflows. Share your feedback, questions, and examples in the thread.