GPT Realtime Mini

Oct 2025
Retires Jan 20, 2027Move toGPT Realtime 2.1 MiniNewer version
GPT Realtime Mini
Compare in
on
$10 / $20per 1M audio in / out
0.8 sfirst audio?
15.1τ-Voice
Oct 2025released

History

2 versions
0.80.80.80.9Oct 25Jan 26Apr 26Jul 26Release dateTime to first audio (lower is better)Mini2.1
0.80.80.80.9Oct 25Jan 26Apr 26Jul 26Release dateTime to first audio (lower is better)Mini2.1

Benchmarks

in Speech & Voice
Full-Duplex-Bench · AA subset v1/v1.595.7#11
AA Speech Agent Arena · overall · Elo923.9#14
AA Speech Agent Arena · overall · Task Success79.6#12
AA Speech Agent Arena · agentic · Elo907#14
AA Speech Agent Arena · non-agentic · Elo943.2#14
τ-Voice · AA · aggregate15.1#17
τ-Voice · AA · airline22#17
τ-Voice · AA · retail15.8#14
τ-Voice · AA · telecom7.6#15
EVA-Bench · EVA-A accuracy pass16.3#12
EVA-Bench · EVA-X experience pass40.6#8

FAQ

Is GPT Realtime Mini free to use?›

There is no free API; the cheapest paid price is $10 per 1M input tokens.

How good is GPT Realtime Mini, and what is it best at?›

#17 of 17 in Realtime.

Is GPT Realtime Mini better than GPT-4o Mini Realtime?›

On Time to first audio · AA, GPT Realtime Mini scores 0.8 vs 1.3 — about the same.

How can I use GPT Realtime Mini?›

Through the OpenAI API.

When was GPT Realtime Mini released? Is there a newer version?›

Released 2025-10-06. It has been superseded by GPT Realtime 2.1 Mini.

Is GPT Realtime Mini open source?›

No, GPT Realtime Mini is a closed model available through an API. The closest open-weights option here is Raon SpeechChat 9B.

What is GPT Realtime Mini?›

GPT Realtime Mini is a closed speech & voice model from OpenAI, released Oct 2025, the successor to GPT-4o Mini Realtime.

What are the best alternatives to GPT Realtime Mini?›

Raon SpeechChat 9B (open weights).