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 Preview98.92Qwen Audio 3.0 Realtime Plus98.43GPT Live 197.34Grok Voice 3.0975Qwen Audio 3.0 Realtime Flash96.9
···
16Gemini 3.8 Live Extended Thinking91.917GPT Realtime 2.1 Mini91.718PersonaPlex 7B91

Strong at

C
Speech & Voice#13 of 17

History

2 versions
9293949596Oct 25Jan 26Apr 26Jul 26Release dateFull-Duplex-BenchMini2.1
9293949596Oct 25Jan 26Apr 26Jul 26Release dateFull-Duplex-BenchMini2.1

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 Full-Duplex-Bench · AA subset v1/v1.5, GPT Realtime 2.1 Mini scores 91.8 vs 95.7 — lower.

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 PersonaPlex 7B.

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), PersonaPlex 7B (open weights).