GPT-Realtime-2.1
Realtime speech-to-speech model with configurable reasoning, tool use, and robust voice-agent behavior
BENCHMARKS
Not in the Epoch Capabilities Index. Epoch benchmarks what it can run, so this is a gap in coverage, not a poor result.
RELEASE DATEJul 6, 2026
WEIGHTSClosed weights
CONTEXT WINDOW128K
MAX OUTPUT32K
REASONINGYes
TOOL CALLINGYes
INPUTStext, audio, image
OUTPUTStext, audio
Specifications from Models.dev. Availability and limits may differ by provider. Benchmark scores come from Epoch AI under CC BY 4.0.