Gemini 3.8 Live Extended Thinking vs GPT-Live 1 + GPT-6 Sol

Compare
Gemini 3.8 Live Extended ThinkingGoogle
Wins 2 of 11
Reliability (Pass³)
24.3%
Latency P50
2.10s
Cost per Minute (USD)
n/a
GPT-Live 1 + GPT-6 SolOpenAI
Wins 8 of 11
Reliability (Pass³)
32.9%
Latency P50
2.27s
Cost per Minute (USD)
$0.055

GPT-Live 1 + GPT-6 Sol is ahead on ELO rating, hearing score, speaking score, task handling score, reliability, calls handled well, calls fully resolved and calls where the agent went quiet, and Gemini 3.8 Live Extended Thinking on turn taking score and median latency.

Last updated Methodology by Dileep Chagam

Who is better at what

Gemini 3.8 Live Extended ThinkingGPT-Live 1 + GPT-6 Sol
  • ELO Rating10161069
  • Hearing5471
  • Turn Taking7972
  • Speaking8083
  • Task Handling6782
  • Reliability (Pass³)24.3%32.9%
  • Pass Rate (score ≥ 80)53.3%58.6%
  • Task Completion Rate22.9%36.2%
  • Dead-Air Rate (≥ 10 s)17.6%13.3%
  • Latency P502.10s2.27s
  • Cost per Minute (USD)No verified rate$0.055

Results by call

Right every time, on booking and Healthcare calls

Banking callsHealthcare calls
  1. 29%
    37%
    GPT-Live 1 + GPT-6 Sol
  2. 20%
    29%
    Gemini 3.8 Live Extended Thinking

Gemini 3.8 Live Extended Thinking vs GPT-Live 1 + GPT-6 Sol FAQ

  • GPT-Live 1 + GPT-6 Sol is more reliable, by 8.6 points. Gemini 3.8 Live Extended Thinking handled 17 of 70 real callers well on all three runs, and GPT-Live 1 + GPT-6 Sol 23. A caller only counts when every run of the call scored 80 or more.

  • For a voice agent, GPT-Live 1 + GPT-6 Sol, since it handles more real callers well on every run. GPT-Live 1 + GPT-6 Sol is ahead on ELO rating, hearing score, speaking score, task handling score, reliability, calls handled well, calls fully resolved and calls where the agent went quiet, and Gemini 3.8 Live Extended Thinking on turn taking score and median latency.

  • GPT-Live 1 + GPT-6 Sol, by 13.3 points higher. Gemini 3.8 Live Extended Thinking fully resolved 22.9% of calls and GPT-Live 1 + GPT-6 Sol 36.2%. A call counts only when every step the caller needed was done.

  • Yes. Gemini 3.8 Live Extended Thinking starts replying 0.17s sooner at the median. Gemini 3.8 Live Extended Thinking takes 2.10s at the median and 2.60s at p90; GPT-Live 1 + GPT-6 Sol takes 2.27s and 2.72s. Both are measured on the call audio, from the caller finishing to the agent starting to reply.

  • GPT-Live 1 + GPT-6 Sol, by 4.3 points. The agent went quiet for 10 seconds or more on 17.6% of Gemini 3.8 Live Extended Thinking calls and 13.3% of GPT-Live 1 + GPT-6 Sol calls.

  • There is no verified per-minute rate for Gemini 3.8 Live Extended Thinking, so cost cannot be compared yet.

  • Cekura ran both as the whole agent with the same prompt, tools and phone connection. Both took the same 70 recorded real human callers on live calls, three times each. Each call is graded on 25 skills across Hearing, Turn Taking, Task Handling and Speaking, and passes at a score of 80 out of 100.

Test your voice agent the same way.

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