GPT Live 1
Sep 2026
GPT Live 1Compare inon
GPT Live 1 measured on 21 of 34 Realtime benchmarks21
BenchmarkByScoreRank
Agents13Leads on 2
Multimodal6
Legacy · saturated or no longer reported2
No benchmark matches
$0.05per minute
1.3 sfirst audio?
74.5τ-Voice
Sep 2026released
$0.05 / minPer audio minute
voice layer only; backend model and tools billed separatelyPrice covers
Rankingat medium effort?
Full ranking →Strong at
Alternatives?
ModelScoreCostPriceWhat changes
BetterGrok Voice 3.0+4%+60%$0.08Per audio minute: $0.05 / min → $0.08 / min+1Same labGPT Realtime 2.1high-10%——Per audio minute: not verified+1ModelScoreCostPriceWhat changes
Nothing here yet.
ModelScoreCostPriceWhat changes
Grok Voice 3.0+4%+60%$0.08Per audio minute: $0.05 / min → $0.08 / min+1ModelScoreCostPriceWhat changes
Nothing here yet.
ModelScoreCostPriceWhat changes
GPT Realtime 2.1high-10%——Per audio minute: not verified+1GPT Realtime 2high-12%——Per audio minute: not verified+1GPT Realtime 1.5-15%——Per audio minute: not verified+1GPT Realtimeunstated-17%——Per audio minute: not verified+1GPT Realtime Miniunstated-32%——Per audio minute: not verifiedGPT Realtime 2.1 Miniminimal-35%——Per audio minute: not verified+1GPT Audio 1.5n/a——Per audio minute: not verified+1GPT Audio Minin/a——Per audio minute: not verifiedAll OpenAI models →Benchmarks
in Speech & VoiceBig Bench Audio · AA v1.290.1#14
Full-Duplex-Bench · AA subset v1/v1.594.9#12
Time to first audio · AA1.3#18
AA Speech Agent Arena · overall · Elo1,044.1#4
AA Speech Agent Arena · overall · Task Success87.4#8
AA Speech Agent Arena · agentic · Elo1,025.1#4
AA Speech Agent Arena · non-agentic · Elo1,098#2
τ-Voice · AA · aggregate74.5#1
τ-Voice · AA · airline76.7#1
τ-Voice · AA · retail72.5#1
τ-Voice · AA · telecom74.3#3
FAQ
How much does GPT Live 1 cost?›
$0.05 per minute.
Is GPT Live 1 free to use?›
There is no free API; it costs $0.05 per minute.
How good is GPT Live 1, and what is it best at?›
#1 of 17 in Realtime. Strongest at: Speech & Voice.
Is GPT Live 1 better than Grok Voice 3.0?›
On AA Speech to Speech Index v2.0, GPT Live 1 scores 83.2 vs 86.9 — lower. It is 38% cheaper.
When was GPT Live 1 released? Is there a newer version?›
Released 2026-09-10. It is the current version in its line.
Is GPT Live 1 open source?›
No, GPT Live 1 is a closed model available through an API.
What is GPT Live 1?›
GPT Live 1 is a closed speech & voice model from OpenAI, released Sep 2026.
What are the best alternatives to GPT Live 1?›
Grok Voice 3.0 (better).