AI chatbot costs range from ¥500,000 for basic implementations to ¥5,000,000+ for advanced AI agents. Here's what you get at each price point.

Cost by Chatbot Type

TypeCostFeatures
FAQ Chatbot¥500k-1MPre-set Q&A, no AI, basic responses
LLM Chatbot¥1M-2MNatural language, knowledge base
AI Agent¥2M-5MTakes actions, integrations, memory
Enterprise¥5M+Custom model, full integrations, SLA

What's Included at Each Level

FAQ Chatbot (¥500,000-1,000,000)

  • Rule-based responses (if X, then Y)
  • Fixed question set (50-200 Q&As)
  • Simple web widget or LINE integration
  • Basic analytics
  • 3-6 week implementation

LLM Chatbot (¥1,000,000-2,000,000)

  • Understands natural language conversations
  • Knowledge base from your documentation
  • Ongoing learning from conversations
  • Web, LINE, and/or Slack integration
  • Conversation history and context
  • 6-10 week implementation

AI Agent (¥2,000,000-5,000,000)

  • Everything in LLM chatbot, plus:
  • Takes actions (book meetings, create tickets, etc.)
  • CRM/database integrations
  • Multi-step task handling
  • Handoff to human agents
  • Custom personality and brand voice
  • 8-16 week implementation

Ongoing Costs

Don't forget the monthly costs after launch:

  • API usage: ¥10,000-100,000/month (depends on volume)
  • Hosting: ¥5,000-30,000/month
  • Maintenance: ¥50,000-150,000/month (optional)
  • Knowledge base updates: As needed

ROI Calculation

A chatbot handling 100 conversations/day saves approximately:

  • 2-3 hours of support staff time daily
  • ¥400,000-600,000/month in labor costs
  • Break-even: 2-4 months for basic, 4-8 months for advanced

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