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 xhigh effort?

Full ranking →
1GPT Live 174.52Grok Voice 3.071.63Gemini 3.8 Live Extended Thinking68.64Grok Voice 2.056.55Qwen Audio 3.0 Realtime Plus54.66GPT Realtime 2.145.77GPT Realtime 2 · high39.88GPT Realtime 1.538.8

Strong at

B
Speech & Voice#7 of 17

History

4 versions
30354045Oct 25Jan 26Apr 26Jul 26Release dateτ-VoiceGPT Realtime1.522.1
30354045Oct 25Jan 26Apr 26Jul 26Release dateτ-VoiceGPT Realtime1.522.1

Benchmarks

in Speech & Voice
AudioMultiChallenge · audio output · APR48.5#1
τ³-voice · Sierra · 1.0.0 · custom · retail50#1
τ³-voice · Sierra · 1.0.0 · custom · airline66#1
τ³-voice · Sierra · 1.0.0 · custom · telecom37.7#1
τ³-voice · Sierra · 1.0.0 · custom · overall51.2#1
τ³-voice · Sierra · 1.0.0 · standard · retail47.4#1
τ³-voice · Sierra · 1.0.0 · standard · airline58#2
τ³-voice · Sierra · 1.0.0 · standard · telecom21.9#1
τ³-voice · Sierra · 1.0.0 · standard · overall42.4#2
τ³-voice · Sierra · 1.0.1 · custom · banking knowledge10.3#3

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 2.1?›

On τ-Voice · AA · aggregate, GPT Realtime 2 scores 39.8 vs 45.7 — 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.

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).