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1 Answers

ICSM Computer
ICSM Computer 16 May 2026
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To use Ollama on your system, follow these quick steps:

1. Install Ollama

Download from:

Ollama Official Website

Available for:

  • Windows
  • macOS
  • Linux

After installation, verify:

ollama --version

2. Pull a Model

Example:

ollama pull llama3

Other popular models:

  • mistral
  • codellama
  • phi
  • gemma

3. Run a Model

ollama run llama3

Now you can chat locally in terminal.

Example:

>>> Explain microservices

4. Use via API

Ollama automatically starts a local API server.

Default URL:

http://localhost:11434

Example API call:

curl http://localhost:11434/api/generate -d '{
  "model": "llama3",
  "prompt": "What is ASP.NET Core?"
}'

5. Use in C#

Example with HttpClient:

var client = new HttpClient();

var json = """
{
  "model": "llama3",
  "prompt": "Explain SQL indexing"
}
""";

var content = new StringContent(
    json,
    Encoding.UTF8,
    "application/json");

var response = await client.PostAsync(
    "http://localhost:11434/api/generate",
    content);

var result = await response.Content.ReadAsStringAsync();

Console.WriteLine(result);

6. List Installed Models

ollama list

7. Remove a Model

ollama rm llama3

Popular Usage

Developers commonly use Ollama for:

  • Local AI chatbots
  • Code assistants
  • RAG applications
  • Document summarization
  • Offline AI apps

AI APIs in ASP.NET Core/Python/Node.js

Recommended Models

Use Case Model
General Chat llama3
Coding codellama
Lightweight phi
Fast Responses mistral

Minimum System Recommendation

Component Recommended
RAM 16GB+
GPU Optional but helpful
OS Windows/Linux/macOS

Runs on CPU too, but GPU is much faster.

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