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 →
1Grok Voice 3.073.72GPT Realtime 2.1593Gemini 3.8 Live Extended Thinking54.84Grok Voice 2.051.75GPT Realtime 250.4
···
10Ultravox Realtime2711GPT Realtime 2.1 Mini21.712GPT Realtime Mini16.3

Strong at

C
Speech & Voice#13 of 17

History

2 versions
16182022Oct 25Jan 26Apr 26Jul 26Release dateEVA-Bench accuracyMini2.1
16182022Oct 25Jan 26Apr 26Jul 26Release dateEVA-Bench accuracyMini2.1

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 EVA-Bench · EVA-A accuracy pass, GPT Realtime 2.1 Mini scores 21.7 vs 16.3 — 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 Ultravox Realtime.

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?›

Ultravox Realtime (better).