AI voice bot speech speed: make the bot talk faster without a prompt

AI voice bot speech speed decides whether a client listens to the end of the first sentence. A slow robot sounds like an answering machine: the client loses patience and hangs up, while every extra second of the call is paid for. Until now, to make the bot talk faster you had to write a rule in the prompt yourself and guess the right tag. Now the pace is picked from one list — no prompts needed.

The “Speech pace” block sits on the “Instruction” tab of the bot card, right above “Style talk”. Pick a tag, and the bot puts it before every reply, so the voice speaks at that pace. Watch the minute-and-a-half video: the same bot phrase plays first at the normal pace and then very fast.

How AI voice bot speech pace works

A pace tag is a short note in square brackets, for example [speaking very fast]. The v3 voice model, the same one that voices emotion tags, understands it: it does not read the tag aloud but changes the speed and manner of speech. The “Speech pace” block writes one rule into the instruction — put the selected tag before every message. The bot's AI follows it in every reply, so the pace holds for the whole call.

1. 1
   Open the block

   Bot card → “Instruction” tab → “Speech pace”. The default is “Normal pace — no tag”.
2. 2
   Pick a tag

   The list has 12 tags, each with a note on what it does: “Fast, natural speech”, “Very fast speech”, “Fast but clear” and more.
3. 3
   Save the bot

   Click “Save” on the bottom bar: without it the new pace will not reach your calls.
4. 4
   Listen

   “Settings” → “General” → “Hear how the robot sounds”: type a phrase with the tag at the start and click “Voice it”.

Which tag to choose: speech pace tags

Start with “Fast, natural speech” — it speeds the bot up gently. If clients still do not listen to the end, move on to “Very fast speech”. For a complex offer with prices and dates, take “Fast but clear”: the numbers will not blur together.

How to make a voice bot talk faster: before and after

We voiced the same bot phrase through the dashboard with the v3 voice model: “Hi! This is Anna from Lingvoria, an online English school. You left a request on our website — do you have a couple of minutes to talk about a free trial lesson?” At the normal pace the phrase lasts 10.6 seconds, with the “[speaking very fast]” tag — 7.8 seconds. The bot greets the client almost three seconds sooner and sounds livelier, while the words stay clear.

The speed-up adds up over every reply: the longer the call, the more seconds the bot saves. The client hears the point sooner, and the call is shorter — and cheaper.

Where the pace rule lives in the instruction

A choice in “Speech pace” adds an item to “Important rules”: “Before every message, always put the tag [speaking very fast]”. For a bot in Russian the rule is written in Russian. The item is not shown in the “Important rules” list — only “Speech pace” manages it, so you cannot delete it by accident or add it twice.

Pick another tag and the dashboard replaces the old item instead of adding a second one. “Normal pace — no tag” removes the item completely. If you once added an item of exactly this form to “Important rules” yourself — “Before every message, always put the tag […]” — the block recognizes it: a tag from the list shows as selected, and any other tag appears as “own tag from the instruction”.

Read also: Human-like AI voice bot, AI voice bot script, AI voice bot troubleshooting