GPT Realtime 2

May 2026
GPT Realtime 2
Compare in
on
$32 / $64per 1M audio in / out
1.1 sfirst audio?
39.8τ-Voice
May 2026released

Rankingat high effort?

Full ranking →
1Gemini 3.1 Flash Live Preview1,150.62Gemini 3.8 Live1,119.73Eleven Realtime v1 Max1,112.74GPT Live 11,0985Eleven Realtime v1 Mini1,077.4
···
10GPT Realtime 1.51,00011GPT Realtime 2973.312GPT Realtime968.9

Strong at

B
Speech & Voice#7 of 17

History

4 versions
9609709809901,000Oct 25Jan 26Apr 26Jul 26Release dateSpeech Agent Arena · Non-agenticGPT Realtime1.522.1
9609709809901,000Oct 25Jan 26Apr 26Jul 26Release dateSpeech Agent Arena · Non-agenticGPT Realtime1.522.1

Benchmarks

in Speech & Voice
Big Bench Audio · AA v1.296.6#9
Full-Duplex-Bench · AA subset v1/v1.595.3#11
Time to first audio · AA1.1#15
AA Speech Agent Arena · overall · Elo925.9#13
AA Speech Agent Arena · overall · Task Success89.8#6
AA Speech to Speech Index v2.073.6#7
AA Speech Agent Arena · agentic · Elo914.2#13
AA Speech Agent Arena · non-agentic · Elo973.3#11
τ-Voice · AA · aggregate39.8#7
τ-Voice · AA · airline62.7#4
τ-Voice · AA · retail33.3#10
τ-Voice · AA · telecom28.7#7

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?›

#7 of 17 in Realtime.

Is GPT Realtime 2 better than GPT Realtime 1.5?›

On AA Speech Agent Arena · non-agentic · Elo, GPT Realtime 2 scores 973.3 vs 1,000 — 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.

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?›

GPT Live 1 (better).