GPT Live 1
Sep 2026
GPT Live 1Compare inon
GPT Live 1 measured on 21 of 34 Realtime benchmarks21
BenchmarkByScoreRank
Agents13Leads on 1
Multimodal6
Legacy · saturated or no longer reported2
No benchmark matches
$0.05per minute
1.2 sfirst audio?
59.3τ-Voice
Sep 2026released
$0.05 / minPer audio minute
voice layer only; backend model and tools billed separatelyPrice covers
Rankingat low effort?
Full ranking →Strong at
Alternatives?
ModelScoreCostPriceWhat changes
OpenPersonaPlex 7B-6%——Per audio minute: not verified+1KOpenRaon SpeechChat 9B-11%——Per audio minute: not verified+1KOpenMoshi-37%——Per audio minute: not verified+1OpenNemotronLabs VoiceChat 11B-46%——Per audio minute: not verified+1Same labGPT Realtime 2.1high-2%——Per audio minute: not verified+1ModelScoreCostPriceWhat changes
Nothing here yet.
ModelScoreCostPriceWhat changes
Nothing here yet.
ModelScoreCostPriceWhat changes
PersonaPlex 7BOpen-6%——Per audio minute: not verified+1KRaon SpeechChat 9BOpen-11%——Per audio minute: not verified+1KMoshiOpen-37%——Per audio minute: not verified+1NemotronLabs VoiceChat 11BOpen-46%——Per audio minute: not verified+1ModelScoreCostPriceWhat changes
GPT Realtime 2.1high-2%——Per audio minute: not verified+1GPT Realtime 1.5-2%——Per audio minute: not verified+1GPT Realtime Mini-2%——Per audio minute: not verifiedGPT Realtime 2medium-2%——Per audio minute: not verified+1GPT Realtime-4%——Per audio minute: not verified+1GPT Realtime 2.1 Minihigh-6%——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 & VoiceFull-Duplex-Bench · AA subset v1/v1.597.3#3
Time to first audio · AA1.2#18
AA Speech Agent Arena · overall · Elo1,047.3#4
AA Speech Agent Arena · overall · Task Success90.9#5
AA Speech Agent Arena · agentic · Elo1,038.4#4
AA Speech Agent Arena · non-agentic · Elo1,064.7#6
τ-Voice · AA · aggregate59.3#3
τ-Voice · AA · airline76#1
τ-Voice · AA · retail56.1#2
τ-Voice · AA · telecom45.6#5
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?›
#3 of 17 in Realtime. Strongest at: Speech & Voice.
Is GPT Live 1 better than Qwen Audio 3.0 Realtime Plus?›
On Full-Duplex-Bench · AA subset v1/v1.5, GPT Live 1 scores 97.3 vs 98.4 — lower.
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. The closest open-weights option here is PersonaPlex 7B.
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?›
PersonaPlex 7B (open weights).