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 →
1Gemini 3.8 Live88.62Gemini 3.8 Live Extended Thinking79.23Grok Voice 3.071.24Grok Voice 2.064.15GPT Realtime 2.161.6
···
10GPT Realtime36.511GPT Realtime 2.1 Mini29.212Ultravox Realtime2.9

Strong at

C
Speech & Voice#13 of 17

History

2 versions
303540Oct 25Jan 26Apr 26Jul 26Release dateEVA-Bench experienceMini2.1
303540Oct 25Jan 26Apr 26Jul 26Release dateEVA-Bench experienceMini2.1

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-X experience pass, GPT Realtime 2.1 Mini scores 29.2 vs 40.6 — 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 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?›

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