Grok Voice 3.0 vs Phonic-1

Grok Voice 3.0 is more reliable, by 11.4 points. Grok Voice 3.0 handled 30 of 70 real callers well on all three runs, and Phonic-1 22. A caller only counts when every run of the call scored 80 or more.

For a voice agent, Grok Voice 3.0, since it handles more real callers well on every run. Grok Voice 3.0 is ahead of Phonic-1 on ELO rating, hearing score, turn taking score, speaking score, task handling score, reliability, calls handled well, calls fully resolved, calls where the agent went quiet and median latency.

Grok Voice 3.0, by 10.0 points higher. Grok Voice 3.0 fully resolved 34.8% of calls and Phonic-1 24.8%. A call counts only when every step the caller needed was done.

Yes. Grok Voice 3.0 starts replying 0.39s sooner at the median. Grok Voice 3.0 takes 1.60s at the median and 1.94s at p90; Phonic-1 takes 1.99s and 2.32s. Both are measured on the call audio, from the caller finishing to the agent starting to reply.

Grok Voice 3.0, by 3.8 points. The agent went quiet for 10 seconds or more on 7.1% of Grok Voice 3.0 calls and 11.0% of Phonic-1 calls.

There is no verified per-minute rate for Phonic-1, 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.