CekuraBench
Book a demo

Gemini 3.1 Flash Live Preview vs GPT-Live 1 + GPT-6 Sol

All comparisonsLeaderboard
Compare
Gemini 3.1 Flash Live PreviewGoogle
Wins 2 of 8
Reliability
62.2%
Response time
2.88s
Cost / min
$0.0703
GPT-Live 1 + GPT-6 SolOpenAI
Wins 6 of 8
Reliability
75.6%
Response time
2.02s
Cost / min
$0.0553

GPT-Live 1 + GPT-6 Sol is ahead on reliability, success rate, agent responses, data accuracy, response time and cost, and Gemini 3.1 Flash Live Preview on calls where the agent went quiet and interruption.

Last updated Methodology by Dileep Chagam

Who is better at what

For the wider field, see our pick of the best voice AI APIs for real-time audio.

Gemini 3.1 Flash Live PreviewGPT-Live 1 + GPT-6 Sol
  • Reliability62.2%75.6%
  • Success rate76.0%83.7%
  • Agent responses95.9%100.0%
  • Data accuracy79.2%89.0%
  • Went quiet3.3%12.2%
  • Interruption4.984.89
  • Response time2.88s2.02s
  • Cost / min$0.0703$0.0553

Reliability on booking and Medicare calls

Scenarios the agent passed on every one of its 3 runs.

Booking callsMedicare calls
  1. 92%
    35%
    GPT-Live 1 + GPT-6 Sol
  2. 83%
    9%
    Gemini 3.1 Flash Live Preview

Related comparisons

Both providers, every model: Google vs OpenAI

Each model on its own: Gemini 3.1 Flash Live Preview and GPT-Live 1 + GPT-6 Sol

Gemini 3.1 Flash Live Preview vs GPT-Live 1 + GPT-6 Sol FAQ

  • GPT-Live 1 + GPT-6 Sol is more reliable, by 13.4 points. Gemini 3.1 Flash Live Preview passed 51 of 82 scenarios on all three runs, and GPT-Live 1 + GPT-6 Sol passed 62. A scenario only counts when every run of it passed.

  • For a voice agent, GPT-Live 1 + GPT-6 Sol, since it gets more scenarios right on every run. GPT-Live 1 + GPT-6 Sol is ahead on reliability, success rate, agent responses, data accuracy, response time and cost, and Gemini 3.1 Flash Live Preview on calls where the agent went quiet and interruption.

  • GPT-Live 1 + GPT-6 Sol, by 9.8 points. Gemini 3.1 Flash Live Preview saved everything exactly right on 79.2% of the calls that save data, and GPT-Live 1 + GPT-6 Sol on 89.0%. On Booking calls, 96.5% against 100.0%. On Medicare calls, 34.8% against 60.6%. A call counts only when nothing is missing, wrong, extra or saved twice.

  • No. GPT-Live 1 + GPT-6 Sol starts replying 0.86s sooner at the median. Gemini 3.1 Flash Live Preview takes 2.88s at the median and 4.00s at p90; GPT-Live 1 + GPT-6 Sol takes 2.02s and 2.42s. Both are measured on the call audio, from the caller finishing to the agent starting to reply.

  • Gemini 3.1 Flash Live Preview, by 0.09 on a 0 to 5 scale. Gemini 3.1 Flash Live Preview scores 4.98 and GPT-Live 1 + GPT-6 Sol 4.89 for how well the agent handled being talked over.

  • Gemini 3.1 Flash Live Preview, by 8.9 points. The agent went quiet for 10 seconds or more on 3.3% of Gemini 3.1 Flash Live Preview calls and 12.2% of GPT-Live 1 + GPT-6 Sol calls.

  • GPT-Live 1 + GPT-6 Sol is $0.0150 cheaper a minute. Gemini 3.1 Flash Live Preview costs $0.0703 a minute of call and GPT-Live 1 + GPT-6 Sol $0.0553, at each vendor's published rates.

  • Cekura ran both as the whole agent in the same open-source Pipecat pipeline, with the same prompt, tools and connection. A simulated caller worked through all 82 scenarios on live calls, three times each, 3,690 calls across the benchmark. A call passes only when the agent said the right things and saved the right data.

Test your voice agent the same way.

Cekura runs these simulated calls on your agent and scores every one.

Book a demoStart free