← Speech-to-Speech
OpenAI
gpt-realtime-2.1
Tier 2 · 95% CI 0.80–0.88
Measured 2026-11-05
Run gpt-realtime-2.1 on Speko →One API, every model on this board.
Overall
0.84
Action
0.77
Booked before yes
2%
Call completion
100%
Task capability
0.88
First sound
971ms
1511·—
Answer
1151ms
Audio price
$32 / $64 · 1M tok
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https://speko.ai/benchmarks/s2s/openai-gpt-realtime-2-1