Skip to main content

AI Reply Agent: How to Automatically Respond to Leads

ai, A.I., reply agent, automatic reply, how send automatic replies

plusvibe.ai Support Team avatar
Written by plusvibe.ai Support Team
Updated over 3 weeks ago

What is AI Reply Agent?

The AI Reply Agent helps you automate your first response to incoming leads.


You can create custom rules, set conditions, and configure the AI to reply instantly, reply with a delay, or save replies as drafts.

How to Create an AI Reply Rule

Step 1: Open the AI Reply Agent

You will find the AI reply agent button in your inbox.

Step 2: Add a New Rule

  • Click Add Rule

  • Give your rule a name (e.g., Interested Lead)

  • Select the label the rule should trigger on (example: Interested)

  • Choose the campaign on which the rule will apply

  • Choose which email account the reply will be sent from

  • You can also add CC email (it's optional)

After completing the above steps, it’s time to set up the AI.

In the response section, make sure you’ve selected AI Reply, as shown in the screenshot

You can select the AI model from which you prefer to generate replies. We have -

GPT - 5

GPT - 5 Mini

GPT - 4o

You will see a field to enter your prompt. This prompt tells the AI how to respond when the label is detected. (in the above screenshot, "enter your prompt here" field)

Tips:

  • Add details about your offer

  • Include pricing, delivery timelines, or CTA

  • The more details you provide, the more accurate your replies will be

Test Your Prompt

You can paste a sample incoming message and click Test to preview how the AI would reply.

Step 3: Choose Your Sending Method

You have three options:

A. Prepare as Draft

AI writes the reply, but does not send it. It appears in Drafts for manual review.
Useful if you want to check before sending.

B. Reply Immediately

AI sends the email instantly after detecting the rule condition.
Best for speed and fast replies.

C. Reply With a Delay

AI sends the email after a set delay in:

  • Minutes

  • Days

You control the timing to match your workflow.

Step 4: Use the Confidence Filter

We have an extra safety setting:


“If AI confidence is low, save as a draft.”

When enabled:

  • The AI generates a response. If the confidence score is low, it does not send the reply and saves it as a draft.

This helps avoid wrong or risky auto-replies.

At last, you can choose if you want to add a label to the leads who have been auto-replied via the AI Reply Agent.

Manual Auto-Reply

Here, everything remains the same, just the reply will not be generated. You can type your own reply & our system will send it as a reply.

In the response section, you need to select the Manual Reply.

After you’ve done everything, click Save Changes

That’s all. Simple, fast, and done.
You’re now equipped with one of the most advanced AI tools.

NOTE - Currently, the AI Reply agent feature is only available for Business Plans. If you have any plan lower than Business, check our plans here - https://plusvibe.ai/plans

Did this answer your question?