GPT Realtime 2

May 2026
GPT Realtime 2
Compare in
on
$32 / $64per 1M audio in / out
1.2 sfirst audio?
37.4τ-Voice
May 2026released

Rankingat medium effort?

Full ranking →
1Grok Voice 3.073.72GPT Realtime 2.1593Gemini 3.8 Live Extended Thinking54.84Grok Voice 2.051.75GPT Realtime 250.46GPT Realtime 1.546.7

Strong at

C
Speech & Voice#9 of 17

History

4 versions
4045505560Oct 25Jan 26Apr 26Jul 26Release dateEVA-Bench accuracyGPT Realtime1.522.1
4045505560Oct 25Jan 26Apr 26Jul 26Release dateEVA-Bench accuracyGPT Realtime1.522.1

Benchmarks

in Speech & Voice
Big Bench Audio · AA v1.293.3#12
Full-Duplex-Bench · AA subset v1/v1.595.2#11
Time to first audio · AA1.2#17
τ-Voice · AA · aggregate37.4#9
τ-Voice · AA · airline56.7#6
τ-Voice · AA · retail33.6#10
τ-Voice · AA · telecom21.9#11

FAQ

Is GPT Realtime 2 free to use?›

There is no free API; the cheapest paid price is $32 per 1M input tokens.

How good is GPT Realtime 2, and what is it best at?›

#9 of 17 in Realtime.

Is GPT Realtime 2 better than Grok Voice 2.0?›

On EVA-Bench · EVA-A accuracy pass, GPT Realtime 2 scores 50.4 vs 51.7 — lower.

How can I use GPT Realtime 2?›

Through the OpenAI API.

When was GPT Realtime 2 released? Is there a newer version?›

Released 2026-05-07. It is the current version in its line.

Is GPT Realtime 2 open source?›

No, GPT Realtime 2 is a closed model available through an API. The closest open-weights option here is Ultravox Realtime.

What is GPT Realtime 2?›

GPT Realtime 2 is a closed speech & voice model from OpenAI, released May 2026.

What are the best alternatives to GPT Realtime 2?›

Grok Voice 3.0 (better), Ultravox Realtime (open weights).