GPT-Realtime-2.1 mini

OpenAI

The smaller, cheaper variant of OpenAI's GPT-Realtime-2.1, keeping realtime speech with reasoning and tool use for voice workloads that do not need the full model's capability.

Strengths

Cheaper realtime voice option than the full GPT-Realtime-2.1
Retains reasoning and tool use in a realtime session
Suits high-volume voice workloads

Caveats

Proprietary - OpenAI API only
Lower capability than the full GPT-Realtime-2.1
OpenAI's model reference states no context window, output limit or price for this model

Vendor: OpenAI
License: Proprietary
Modalities: audio
text

Capabilities

Vision

Audio

Video

Tool Use

Resources

API Documentation

Pricing

Usage-based realtime audio pricing via the OpenAI API; rates are not published on the model reference page.