GPT Realtime 2.1 Mini

Jul 2026
GPT Realtime 2.1 Mini
Compare in
on
$10 / $20per 1M audio in / out
4.3 sfirst audio?
29.4τ-Voice
Jul 2026released

Rankingat high effort?

Full ranking →
1StepAudio 3 Realtime Preview99.72Qwen Audio 3.0 Realtime Plus99.23Eleven Realtime v1 Max98.84Qwen 3.5 Omni Plus Realtime98.75Grok Voice 3.098.5
···
19Eleven Realtime v1 Mini75.920GPT Realtime 2.1 Mini74.721Higgs Realtime68.6

Strong at

C
Speech & Voice#13 of 17

History

2 versions
657075Oct 25Jan 26Apr 26Jul 26Release dateBig Bench AudioMini2.1
657075Oct 25Jan 26Apr 26Jul 26Release dateBig Bench AudioMini2.1

Benchmarks

in Speech & Voice
Big Bench Audio · AA v1.274.7#20
Full-Duplex-Bench · AA subset v1/v1.591.7#17
Time to first audio · AA4.3#24
τ-Voice · AA · aggregate29.4#13
τ-Voice · AA · airline47.3#11
τ-Voice · AA · retail19.9#13
τ-Voice · AA · telecom21.1#12

FAQ

Is GPT Realtime 2.1 Mini free to use?›

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

How good is GPT Realtime 2.1 Mini, and what is it best at?›

#13 of 17 in Realtime.

Is GPT Realtime 2.1 Mini better than GPT Realtime Mini?›

On Big Bench Audio · AA v1.2, GPT Realtime 2.1 Mini scores 74.7 vs 63.6 — higher.

How can I use GPT Realtime 2.1 Mini?›

Through the OpenAI API.

When was GPT Realtime 2.1 Mini released? Is there a newer version?›

Released 2026-07-06. It is the current version in its line.

Is GPT Realtime 2.1 Mini open source?›

No, GPT Realtime 2.1 Mini is a closed model available through an API. The closest open-weights option here is Step-Audio R1.1.

What is GPT Realtime 2.1 Mini?›

GPT Realtime 2.1 Mini is a closed speech & voice model from OpenAI, released Jul 2026, the successor to GPT Realtime Mini.

What are the best alternatives to GPT Realtime 2.1 Mini?›

GPT Live 1 (better), Step-Audio R1.1 (open weights).