How to build Internal AI Chatbot with Notebook LLM, Claude or Custom AI Chatbot?

Written by The Crunch  ·  AI Automation for Malaysian SMEs  ·  thecrunch.io

Every growing business has the same problem. Your SOPs, training guides, and company policies are buried in Google Drive. New staff ask the same questions over and over. Senior staff waste hours answering things that are already written down somewhere.

The good news: there are now three practical AI tools that can turn those documents into an instant-answer chatbot for your team — and one of them costs absolutely nothing to set up.

This guide breaks down all three options clearly — including honest costs and the one technical limitation most vendors won’t mention upfront.


The 3 Options at a Glance

  NotebookLM Claude Projects Custom AI Chatbot
Who makes it Google Anthropic Built for you
Setup time 15 minutes 30 minutes Days to weeks
Needs a developer? No No Yes
Google Drive sync ✓ Always live ⚠ Private projects only ✓ Configurable
Shows answer source ✓ Links to doc ⚠ Doc name only ✓ Configurable
Quality of answers Good — factual Excellent — reasoned Excellent
Custom brand voice No ✓ Yes ✓ Fully custom
Year-one cost (20 staff) USD 0 USD 4,800/yr USD 11K – 22.5K
Best for Any team on Google, starting today Teams using AI daily for all tasks 50+ users or selling to customers

Option 1: Google NotebookLM — Start Here (Free)

NotebookLM is a free tool from Google that reads your Google Drive documents and answers your team’s questions in plain language. It always reads the latest version of your documents and tells your staff exactly which document the answer came from.

What it does well: A new staff member can ask “What is our leave policy?” and get the exact answer with a link to the HR policy document — without searching through folders or bothering a manager.

What it does not do: It won’t give deeply reasoned advice or draft an email. It retrieves facts — it doesn’t think through situations the way a human or Claude would.

How to set it up in 15 minutes

  1. Go to notebooklm.google.com and sign in with your Google account
  2. Click New Notebook
  3. Click Add Sources → select Google Drive
  4. Add your SOP documents, staff handbook, and policy files
  5. Share the notebook link with your team
  6. Your staff can now type any question and get an instant, sourced answer

The Crunch recommends: Every Malaysian SME with documents in Google Drive should set this up this week. It costs nothing extra if you already use Google, and it will immediately reduce the time your managers spend answering repeated questions.


Option 2: Claude Projects — For AI-First Teams

Claude Projects is a paid workspace from Anthropic where your team queries an AI trained on your specific business documents. The key difference from NotebookLM is the quality of the answer. Claude doesn’t just retrieve facts — it reasons through situations, drafts responses, and answers in your company’s tone and voice.

What it does well: A staff member asks “A client is upset about a delayed delivery and threatening to cancel. What should I say?” Claude reads your client communication SOPs and gives a thoughtful, recommended reply — not just a policy excerpt.

Cost: USD 20 per person per month on an annual plan (minimum 5 people). For 20 staff, that is USD 4,800 per year.

Important — the Google Drive limitation most people miss: Claude can connect to Google Drive and keep documents live — but only in a personal (private) project. When you create a shared project for your whole team, the Google Drive connector is automatically turned off. Your team would need to upload documents manually, and those uploads will not update automatically when you edit the originals. This is confirmed in Anthropic’s own support documentation. Plan for this if you are setting up a shared team knowledge base.

When does this make sense?

Claude Projects is worth the investment when your team is using AI for more than document lookup — when staff are writing proposals, summarising client meetings, drafting communications, and thinking through operational decisions. If the only use case is “find this policy,” start with NotebookLM first.


Option 3: Custom AI Chatbot — For Scale and Serious Investment

A custom-built AI chatbot connects to all your business systems — Google Drive, your CRM, your database, your WhatsApp — and gives your staff or customers a fully branded chat experience. You own it, you control it, and there is no per-person fee at scale.

The honest cost breakdown:

Cost item Range
One-time: Basic build USD 1,800 – 3,400
One-time: Production-ready build USD 4,500 – 9,000
One-time: Interface + login + admin panel USD 1,100 – 2,250
Monthly: AI processing (20 users) USD 50 – 200/mo
Monthly: Hosting + database USD 90 – 120/mo
Monthly: Maintenance and updates USD 225 – 450/mo
Total year-one investment USD 11,000 – 22,500

When does this make sense? When you have 50+ staff using it daily, when you want to offer it as a service to your own customers, or when you are building a product to sell.

What the “USD 700 chatbot” you see advertised online actually is: A bare script with no interface, no login system, no error handling, and no maintenance support. It may work for a demo. It will not work for a real business operation.


The Recommended Path for Malaysian SMEs

Based on our work implementing AI systems for Malaysian businesses across healthcare, retail, property, and professional services, here is the sequence we recommend:

Stage Trigger Action Cost
Start Today — if your SOPs are in Google Drive Set up NotebookLM, link your Drive SOP folder, share with your team. USD 0
Scale When 5+ staff need AI for writing, proposals, and client work daily Start Claude Team with 5 seats. Expand as usage grows. From USD 1,200/yr
Build When you have 50+ users or want to offer AI to your own customers Commission a custom-built AI chatbot as a business asset or product. USD 11K–22.5K yr1

Bonus: Ready-to-Use Claude Projects System Prompt

If you decide to use Claude Projects as your internal knowledge base, paste the following into your project’s Instructions field. Replace everything in [SQUARE BRACKETS] with your own details.

You are [COMPANY NAME]’s internal AI assistant. Your name is [ASSISTANT NAME].

Your job is to help [COMPANY NAME] staff quickly find answers about our company policies, standard operating procedures, processes, and guidelines — using only the documents provided in this project.

ABOUT OUR COMPANY
[COMPANY NAME] is a [TYPE OF BUSINESS] founded in [YEAR]. We have approximately [NUMBER] staff. Our main services or products are [BRIEF DESCRIPTION].

HOW YOU SHOULD BEHAVE

1. Always base your answers on the documents in this project. Do not make up policies or procedures that are not in the documents.

2. If the answer is not in the documents, say clearly: “I don’t have this information in the current documents. Please check with [RELEVANT PERSON OR DEPARTMENT].”

3. Keep answers clear and practical. Give the key point first, then the detail if needed.

4. When you give an answer, always mention which document or section it came from so staff can verify.

5. If a staff member is dealing with a customer situation, help them apply our guidelines to that situation — don’t just quote the policy.

6. Respond in [LANGUAGE — e.g. English, or Bahasa Malaysia if staff writes in BM].

TONE AND STYLE

– Professional but friendly — like a helpful senior colleague, not a robot
– Concise — get to the point, avoid long preambles
– Practical — give actionable guidance, not just definitions
– Honest — if something is unclear in the documents, say so

TOPICS YOU CAN HELP WITH

– [TOPIC 1 — e.g. Leave applications and HR policies]
– [TOPIC 2 — e.g. Customer service and complaint handling]
– [TOPIC 3 — e.g. Sales process and quotation guidelines]
– [TOPIC 4 — e.g. Onboarding steps for new staff]
– [TOPIC 5 — e.g. Product or service information]

WHAT YOU SHOULD NOT DO

– Do not share confidential salary or personal staff records
– Do not give legal, medical, or financial advice beyond our guidelines
– Do not answer questions unrelated to [COMPANY NAME]’s operations — redirect staff to Claude.ai for general questions

DOCUMENTS IN THIS PROJECT

– [Document 1 name and date]
– [Document 2 name and date]
– [Document 3 name and date]

Last updated: [DATE] — Document owner: [NAME / ROLE]

Setup checklist before going live

  • Replace all [SQUARE BRACKET] placeholders with your actual details
  • Upload your key documents to the Project’s Files section
  • Connect Google Drive documents using the Drive connector (private projects only)
  • Test with 10 real questions your staff commonly ask
  • Adjust tone or scope based on test results
  • Share the project with your team members
  • Tell staff the assistant’s name and what it can help with

5 tips for better results

  1. Keep your documents clean. Rename files clearly (e.g. “Leave_Policy_2026.docx” not “Final_v3_REVISED.docx”) and remove old versions.
  2. Start with your top 10 FAQs. Make sure the answers to your most common questions are clearly written in one of your uploaded documents.
  3. Update documents, not the prompt. When a policy changes, update the document in Drive or re-upload the file. You do not need to rewrite the system prompt.
  4. Add a document index. List which documents are loaded at the bottom of your prompt so staff and Claude both know what is available.
  5. Test with new staff. New staff ask the most basic questions — if the assistant handles those well, it is working correctly.

Not sure which option fits your business?

At The Crunch, we help Malaysian SMEs implement AI tools the right way — without wasting money on the wrong solution. We offer a free 30-minute AI Readiness consultation to help you figure out the right starting point for your team size, budget, and goals.

→ Book your free consultation at thecrunch.io

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