Real-World Use Cases of LLMs Across Industries

How Different Industries Are Using LLMs (Large Language Models)
Today, almost every industry is exploring how to use Large Language Models (LLMs) like ChatGPT to make work faster, smarter, and more efficient. From customer support to healthcare, companies are adding AI into their everyday tools and products.
This article highlights how different sectors are using LLMs to improve productivity, save time, and enhance customer experience. This topic was originally covered on C# Corner in a post titled “What are Good Use Cases for Integrating LLMs into Our Own Products?”
✅ LLMs in Customer Support
Many businesses now use AI chatbots on their websites to answer customer questions. LLMs also help support teams by replying to common queries and sending complex ones to a human agent. This means fewer tickets and quicker replies.
Examples:
- JPMorgan Chase: Assists advisors and automates client communication
- Microsoft: Uses LLMs in Office and Azure customer support
- Zendesk: Improves ticket handling and automates workflows
- Expedia: Uses AI for trip planning support
✅ LLMs in Content Writing
AI tools can turn simple data or bullet points into full blog posts, emails, or social media content.
Examples:
- BuzzFeed: Creates quizzes and listicles using AI
- AP News: Writes summaries and financial stories
- Copy.ai: Helps marketers write emails, ads, and landing pages
- LinkedIn: Assists users in writing profiles and messages
✅ LLMs for Coding Help
Developers now use AI tools directly inside their code editors. These tools autocomplete code, suggest fixes, write tests, or explain how a piece of code works.
Examples:
- GitHub Copilot: Autocompletes code
- Amazon CodeWhisperer: Suggests AWS-ready code
- Google Gemini: Helps in Google Colab and other platforms
- Cursor & Codeium: AI tools for faster and cleaner coding
✅ LLMs in Healthcare
Doctors, nurses, and hospitals are also using AI to save time and improve patient care.
Popular Uses:
- Chatbots that guide patients based on symptoms
- Auto-generated visit summaries from doctor-patient talks
- Quick access to medical knowledge and drug interactions
- Faster medical billing by turning records into codes
- Easy-to-read health info created for patients
✅ LLMs in Finance
Banks and financial firms are using LLMs to handle customer communication, reduce manual work, and stay compliant.
Common Uses:
- Summarizing big compliance documents
- Writing investment emails or financial updates
- Creating reports from raw financial data
- Explaining fraud activity in simple terms
- Helping clients track their portfolios with chat-based tools
Examples:
- Goldman Sachs, Morgan Stanley, Citibank: Use AI for insights and automation
- Capital One, Amex, Stripe, Wells Fargo: Use LLMs for customer service, fraud detection, and finance reports
✅ LLMs in Education (EdTech)
Online learning platforms are using AI to personalize lessons, check assignments, and even act as digital tutors.
How They're Used:
- AI tutors that explain topics and quiz students
- Auto-generated quizzes and coding questions
- Fast feedback on student work
- Personalized learning paths
- Quickly writing lesson plans and scripts
Examples:
- Duolingo: Personalized language practice
- Coursera & Khan Academy: AI-powered learning helpers
- Udemy & C# Corner: Course generation and resume help
🚀 Want to Add AI to Your Business?
If you’re thinking of using LLMs in your product or service, the C# Corner Consulting team can help. From AI-powered chatbots to smart coding tools, we build custom solutions that help you grow faster.

Mahesh
Vibe Coder specializing in AI-powered development and software architecture.