ChatGPT

ChatGPT
The most versatile assistant and easy for any team to start with; the free tier has limits.
OpenAI's most popular AI assistant: Q&A, writing, file analysis, deep research and project-based work.
Overview
ChatGPT is a conversational AI assistant developed by OpenAI. You type your request in Vietnamese as if texting, and ChatGPT replies, drafts text, summarizes documents, analyzes data or looks up information on the web.
For a small business, ChatGPT works like a versatile office employee: writing emails, posts and customer-care scripts, reading Excel reports and suggesting how to act on them. The Projects feature groups conversations, files and instructions for each area of work so you don't have to explain everything again from scratch.
Paid plans unlock deep research, an agent mode that performs multi-step actions on its own, and connections to apps such as Google Drive and Slack. Available features depend on the plan and region, so check your account settings.
Highlights
Natural Vietnamese conversation
Understands requests written in everyday Vietnamese, suitable for non-technical staff.
Projects
Groups chats, files and instructions by project; a project can be shared so the whole team can add documents.
Deep research
Finds and combines many web sources into a cited report, and lets you adjust the research plan before it runs.
Agent mode
Carries out multi-step chains of actions such as browsing the web, analyzing data and producing finished documents (depending on plan).
App connections
Links with Google Drive, Slack, SharePoint, GitHub and many other tools so you can ask questions over company data.
File analysis
Upload PDF, Word or Excel files to summarize them, pull out key points or chart the figures.
What it's for
Writing marketing content
Write Facebook captions, product descriptions and promotional emails in the brand voice saved in a Project.
Customer care
Prepare template replies to common questions about pricing, delivery and returns.
Sales analysis
Upload the monthly sales Excel file so ChatGPT can find best sellers, trends and suggested actions.
Market research
Use deep research to gather competitor information and industry trends before launching a product.
Drafting internal documents
Write procedures (SOPs), house rules and job descriptions from a few bullet points.
How to use it
- 1
Create an account
Go to chatgpt.com or download the app, and sign up with email or a Google/Apple/Microsoft account.
- 2
Set up personalization
Go to Settings to describe your business, your role and the answer style you want.
- 3
Create a Project for each area of work
Click to create a new Project (for example: Marketing), upload brand documents and write dedicated instructions.
- 4
Make clear requests
State the context, goal, output format and desired length; attach files if needed.
- 5
Review and refine
Read the result carefully and ask for specific parts to be fixed rather than rewriting the whole prompt.
Video guides
Get started with ChatGPT Work
OpenAI
ChatGPT Tutorial for Beginners: How to Actually Get Work Done with AI
Kevin Stratvert
Cách dùng ChatGPT hiệu quả cho công việc, chứ không phải cho vui
Duy Luân Dễ Thương
Real-world example
An online cosmetics shop in Da Nang creates a Project called Sales and uploads its price list, return policy and a few old posts. Each morning, staff ask ChatGPT to write 3 captions for the week's promotion, draft replies to the questions customers ask most, and summarize last week's sales file so the owner can quickly see which items to restock.
Tips & notes
Use Projects instead of scattered chats
Instructions and documents are kept, making answers consistent and sparing you from repeating context.
Always check figures and legal information
AI can make mistakes; for prices, taxes and contracts, verify the source before using.
Don't paste sensitive data
Avoid putting account numbers or customers' personal information into chats; businesses should consider an organization plan.
Ask for a specific format
State whether you want a table, bullet points or paragraphs so the result is ready to use.
FAQ
Can ChatGPT be used for free?
Yes, there is a free tier with usage limits; paid plans unlock stronger models and advanced features. See the pricing page on the official site.
Does ChatGPT write Vietnamese well?
ChatGPT understands and writes Vietnamese fairly naturally, but you should reread it and adjust wording to fit your brand voice.
Can several employees share one account?
Use a team/business plan so each person has their own account and an administrator can control the data.
Can ChatGPT look up recent information online?
Yes, ChatGPT can search the web, and deep research combines many sources with citations.
Useful links
Want to apply this in your business?
2dm looks at your workflows, picks the right tools and sets them up with your team. The first call is free.
Same topic

Claude
4.5
Anthropic's AI assistant, strong at writing, analyzing long documents and producing finished Word, Excel and slide files.

Gemini
4.5
Google's AI assistant. The free version already includes Deep Research, Canvas, Gems and image generation; paid plans integrate into Gmail and Docs.

Perplexity
4.0
An AI search engine that answers directly with cited sources you can verify; well suited to quick market research.


