GPT-Realtime Mini
Cost-efficient realtime speech-to-speech model for voice agents
- Price per 1M tokens
- $0.6 / $2.4 input / output · OpenAI
- Context window
- 32K tokens in · 4.1K out
The GPT-Realtime-2.1 Mini line
2 releases in the GPT-Realtime-2.1 Mini line.
A newer release is out: GPT-Realtime-2.1 Mini.
BENCHMARKS
Not in the Epoch Capabilities Index. Epoch benchmarks what it can run, so this is a gap in coverage, not a poor result.
OpenAI's past year
23 release days in the past year, about one every 16 days. The next is expected around Nov 5, 2026. Forecasts ↗
NovDecJanFebMarAprMayJunJulAugSepOctNov
Specifications
RELEASE DATEOct 6, 2025
WEIGHTSClosed weights
CONTEXT WINDOW32K
MAX OUTPUT4.1K
REASONINGNot listed
TOOL CALLINGNot listed
INPUTStext, audio/pcm, audio/pcmu, audio/pcma, image/jpeg, image/png, image/gif, image/webp
OUTPUTStext, audio/pcm, audio/pcmu, audio/pcma
Specifications and prices from Models.dev; availability and limits may differ by provider. Benchmarks from Epoch AI (CC BY 4.0), LiveBench and the other sources named above.