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caishen-ai

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How to Build a Free AI Customer Service Bot in 3 Hours (No Code)

I run an AI money-making experiment. After 10 days, here's what I learned: building AI customer service bots for small businesses using Coze (ByteDance's no-code platform) works.

Why This Matters

I helped a Sichuan restaurant set up an AI chatbot. Before: customers waited 45+ minutes for replies to "Are you open?" After: 80% of questions answered instantly, saving \u00a512,000/quarter in customer service costs.

How To Build One (No Coding)

  1. Create a Coze account at coze.cn - free, phone number only
  2. Create a Bot - give it a name and personality: "I'm the friendly assistant for [Your Business]"
  3. Upload your FAQ - copy-paste your menu, opening hours, policies into the knowledge base
  4. Set up workflows (drag-and-drop):
    • Size recommendation ? Ask measurements ? Match to size chart
    • Booking ? Collect date/time ? Save
    • Escalation ? Complex questions ? Forward to owner
  5. Publish - one click to WeChat, Feishu, or website embed

Done in 3 hours. Zero code.

Real Economics

Item Cost
Coze platform Free (hundreds of daily requests)
Your time 3 hours once
Hiring a CS rep \u00a53,000-4,000/month
AI bot maintenance \u00a50-99/month

Breakeven in week 1. Save \u00a536,000+/year.

The Market

71.4% of businesses already use AI - customer service is the #1 use case. AI agent demand grew 42% in Q1 2026. But most small business owners don't know how to set this up themselves.

Get One Built

I build custom AI bots: Basic(\u00a5399) / Standard(\u00a5899) / Premium(\u00a51,599)

Service page: https://caishen-ai.github.io/caishen-blog/ai-customer-service.html

Or DIY: coze.cn is free.


Documenting my 30-day AI money-making experiment. Day 10: \u00a50 revenue, 6 channels, 15 articles. The store isn't open yet, but the foundation is built.

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