# Smart Gmail auto-labeler with Gemini: n8n workflow template

> Started by an arriving email, and works across Gmail. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/smart-gmail-auto-labeler-with-gemini (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [AI assistants](https://millionrounds.com/workflows?category=AI+assistants#library)

# Smart Gmail auto-labeler with Gemini

Started by an arriving email, and works across Gmail. It hands the judgement calls to Gemini. 16 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsmart-gmail-auto-labeler-with-gemini)

**16 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**1** Loop or waits

**1** Service it connects to

## The flow

Starts it 2 Model 3 Logic 5 Service 6

The steps in the order they run, from what starts it.

- 1 **Gmail Trigger** Gmail trigger *Starts it*
- 2 **Google Gemini Chat Model** Lm Chat Google Gemini *Model*
- 3 **Get Emails By Sender Email** Gmail Tool *Service*
- 4 **Get Emails By Label** Gmail Tool *Service*
- 5 **Structured Output Parser** Output Parser Structured *Model*
- 6 **When clicking ‘Execute workflow’** Manual trigger *Starts it*
- 7 **Get Labels Info** Gmail *Service*
- 8 **Loop Over Items** Split In Batches *Logic*
- 9 **Email Classifier Agent** Agent *Model*
- 10 **Get many messages** Gmail *Service*
- 11 **Check Label Existence** Code *Logic*
- 12 **If not None** If *Logic*
- 13 **If Not Assigned** If *Logic*
- 14 **Convert Label to Label ID** Code *Logic*
- 15 **Add label to thread** Gmail *Service*
- 16 **Remove Inbox label from thread** Gmail *Service*

## How it's built

- **Starts on:** An arriving email
- **Steps:** 16, with 2 branches, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail
- **Model:** Gemini

## Questions

What does it need to run?

An n8n account, plus your own Gmail account, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an arriving email.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 16 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsmart-gmail-auto-labeler-with-gemini)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)

## Workflows like it

Also ai assistants, with the same services where possible, closest in size first.

- [**Classify and reply to Gmail messages with Gemini** 16 steps · calls a model · Gmail](https://millionrounds.com/workflow/classify-and-reply-to-gmail-messages-with-gemini)
- [**Daily tech & cyber security brief with RSS and OpenAI** 16 steps · calls a model · Gmail, RSS](https://millionrounds.com/workflow/daily-tech-and-cyber-security-brief-with-rss-and-openai)
- [**Classify emails and send replies with OpenAI** 15 steps · calls a model · Gmail](https://millionrounds.com/workflow/classify-emails-and-send-replies-with-openai)
- [**Detect duplicate form submissions & send AI responses** 15 steps · calls a model · Gmail](https://millionrounds.com/workflow/detect-duplicate-form-submissions-and-send-ai-responses)
- [**Email daily job matches from Harman careers with OpenAI** 15 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/email-daily-job-matches-from-harman-careers-with-openai)
- [**Generate exam question papers with OpenAI** 15 steps · calls a model · Gmail](https://millionrounds.com/workflow/generate-exam-question-papers-with-openai)