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Automate multilingual Slack communication (JA ⇄ EN) with Gemini 2.5 Flash

AI workflow automation workflow for n8n with 24 active steps. Starts with Webhook. Uses Google Gemini. Integrations include Google Gemini.

By Tomohiro GotoWorkflowReference information

What it does

24 active nodes · Starts with Webhook.

Steps in the template include:

  • Webhook (Slack /trans) (Webhook)
  • Ack (Respond to Slack) (Respond to Webhook)
  • Parse Slash Payload (Code)
  • Ack Mention Event (Respond to Webhook)

Nodes and integrations

  • Webhook ×2
  • Respond to Webhook ×3
  • Code ×9
  • HTTP Request ×4
  • Google Gemini Chat Model
  • Basic LLM Chain ×3
  • Switch
  • If
See the author’s step names
  • Webhook (Slack /trans) (Webhook)
  • Ack (Respond to Slack) (Respond to Webhook)
  • Parse Slash Payload (Code)
  • Ack Mention Event (Respond to Webhook)
  • Parse Mention Event (Code)
  • Ack Reaction Event (Respond to Webhook)
  • Parse Reaction Event (Code)
  • Fetch Original Message (HTTP Request)
  • Prep Reaction Translation Input (Code)
  • Google Gemini Chat Model (Google Gemini Chat Model)
  • Basic LLM Chain (/trans) (Basic LLM Chain)
  • Basic LLM Chain (@trans) (Basic LLM Chain)
  • Basic LLM Chain (reaction) (Basic LLM Chain)
  • Format Slack Message (/trans) (Code)
  • Format Slack Message (@trans) (Code)
  • Format Slack Message (reaction) (Code)
  • Post to Slack (response_url) (HTTP Request)
  • Post to Slack (@trans reply) (HTTP Request)
  • Post to Slack (reaction reply) (HTTP Request)
  • Webhook (Slack @trans + reaction) (Webhook)
  • Route by Event Type (Switch)
  • Skip Reaction When No Message Found (If)
  • Filter Reaction Type (Code)
  • Detect Slack Event Type (Code)

Accounts and credentials

  • Google Gemini access

Credential types in the graph: googlePalmApi

Check the HTTP request steps for any additional service accounts or API keys.

AI models and swaps

Google Gemini · Chat

Model ID not specified in the template in Google Gemini Chat Model. Potentially swappable with a compatible n8n chat model node. Test the replacement with the next step.

Inputs and setup options

  • Webhook (Slack /trans): HTTP POST
  • Google Gemini Chat Model: temperature 0.2
  • Webhook (Slack @trans + reaction): HTTP POST

Resource information

Credit basis
Author listed by n8n
Pricing
Template access shown on n8n
License
Not specified
Last record update
Nov 5, 2026