AI Client for GPT-OSS Complete Guide

Everything you need to know about using AI Client and AI Server to run OpenAI's GPT-OSS models locally on your Windows PC with complete privacy and control.

Getting Started with AI Client

AI Client is your gateway to experiencing OpenAI's GPT-OSS models locally. Developed by Software Tailor, this powerful client application connects to AI Server to provide a ChatGPT-like interface that runs entirely on your Windows PC with complete privacy and control.

Step 1: AI Client

  • Purpose: User-friendly chat interface
  • Features: Multiple conversation modes
  • Installation: Microsoft Store (Free)
  • Requirements: Windows 10+, .NET Runtime
  • Connection: Links to local AI Server
Download AI Client

Step 2: AI Server (Backend)

  • Purpose: GPT-OSS model deployment
  • Features: GPU optimization & monitoring
  • Installation: Microsoft Store (Free)
  • Requirements: 16GB+ GPU (20B) or 80GB+ (120B)
  • Function: Provides API for AI Client
Download AI Server

AI Client Features & Interface

ChatGPT-Style Interface

AI Client provides a familiar, intuitive chat interface that mimics the ChatGPT experience while keeping everything local:

  • Conversation History: All chats saved locally on your PC
  • Real-time Responses: Direct connection to your AI Server
  • Multiple Chat Sessions: Organize conversations by topic
  • Export Options: Save conversations as text or markdown

Advanced AI Modes

AI Client offers multiple specialized modes for different use cases:

  • Assistant Mode: General-purpose conversational AI
  • Reasoning Mode: Chain-of-thought problem solving
  • Tool-Use Mode: Web search and calculation capabilities
  • Chatbot Builder: Create custom AI assistants (v2.0)

Privacy & Security

Complete privacy is the cornerstone of AI Client's design:

  • 100% Local Processing: No data ever leaves your computer
  • No Internet Required: Works completely offline
  • Enterprise-Grade Privacy: Perfect for sensitive business data
  • No Usage Tracking: Your conversations are completely private

Setup and Usage Guide

Installation Process

Setting up AI Client with AI Server is incredibly simple thanks to the Windows Store distribution:

1. Install AI Server

First, download and install AI Server from the Microsoft Store. This backend application will handle GPT-OSS model deployment.

Get AI Server

2. Install AI Client

Then download AI Client from the Microsoft Store. This will be your main interface for chatting with GPT-OSS models.

Get AI Client

System Requirements

Component GPT-OSS-20B GPT-OSS-120B
Operating System Windows 10 or higher Windows 10 or higher
GPU Memory 16GB+ VRAM 80GB+ VRAM (single GPU)
GPU Support NVIDIA, AMD (ROCm) NVIDIA, AMD (ROCm)
RAM 32GB recommended 64GB+ recommended
Storage 50GB free space 200GB+ free space
Pro Tip: AI Client automatically detects when AI Server is running and will connect seamlessly. No manual configuration needed!

AI Client Best Practices

Getting the Most from AI Client

To maximize your experience with AI Client and GPT-OSS models, follow these best practices:

  • Start with Clear Prompts: Be specific about what you want the AI to help with
  • Use Reasoning Mode: For complex problems, switch to reasoning mode to see step-by-step thinking
  • Leverage Long Context: AI Client supports up to 128K tokens - paste entire documents for analysis
  • Organize Conversations: Create separate chats for different projects or topics
  • Monitor Performance: Use AI Server's monitoring tools to track GPU usage and performance

Tool Usage and Advanced Features

AI Client provides access to GPT-OSS's advanced capabilities including tool usage:

  • Web Search: Enable tool-use mode for real-time information gathering
  • Calculations: Let the AI perform complex mathematical computations
  • Code Analysis: Upload code files for review and debugging assistance
  • Document Processing: Analyze PDFs, Word documents, and text files
  • Chain-of-Thought: View the AI's reasoning process for transparency

Privacy and Security Benefits

Using AI Client with AI Server provides unmatched privacy advantages:

  • Complete Data Control: Your conversations never leave your computer
  • Compliance Ready: Perfect for GDPR, HIPAA, and other regulatory requirements
  • No Internet Dependency: Works completely offline once models are downloaded
  • Enterprise Security: Deploy behind corporate firewalls with confidence
  • Zero Tracking: No usage analytics or data collection

Local Deployment Options

AI Server & AI Client (Recommended)

For users looking for a plug-and-play solution on Windows, the AI Server and AI Client apps provide the most convenient local deployment setup.

AI Server Features:

  • ✓ One-click model downloading and importing
  • ✓ GPU/CPU resource management
  • ✓ Real-time performance monitoring
  • ✓ Support for AMD and NVIDIA GPUs
  • ✓ 100% local processing
Download AI Server

AI Client Features:

  • ✓ Modern chat interface
  • ✓ Chain-of-thought reasoning mode
  • ✓ Tool usage capabilities
  • ✓ Multiple conversation modes
  • ✓ Unified AI assistant experience
Download AI Client

Alternative Deployment Methods

OpenAI's Reference Implementation

OpenAI provides an open-source reference implementation with multiple backend options:

  • Pure PyTorch mode for multi-GPU support
  • High-efficiency Triton backend for single-GPU optimization
  • Apple Metal backend for M-series Macs
  • Basic terminal chat client included
  • Lightweight server implementing OpenAI's Responses API

Community Solutions

  • vLLM: Optimized transformer inference engine for high throughput
  • Ollama: User-friendly Mac application with simple UI and API
  • Hugging Face Transformers: Direct integration with HF ecosystem
  • llama.cpp: CPU inference optimization (community port)

Hardware Requirements

Model Recommended Hardware Minimum Hardware Use Case
GPT-OSS-20B RTX 4090 (24GB), Apple M2 Ultra RTX 3080 (16GB), Apple M1 Pro Personal, development, edge deployment
GPT-OSS-120B H100 (80GB), A100 (80GB) 2x RTX 4090, Multi-GPU setups Research, enterprise, production

Use Cases and Applications

Personal AI Assistant

Use AI Client on your home PC for a completely private ChatGPT experience. Perfect for writing, research, coding help, and general productivity tasks.

Business & Enterprise

Deploy AI Client across your organization for customer service, document analysis, and internal knowledge management while keeping all data secure.

Developer Productivity

Integrate AI Client into development workflows for code review, debugging assistance, and automated documentation generation.

Healthcare & Legal

Industries handling sensitive data can use AI Client for document analysis and decision support while maintaining HIPAA, GDPR, and other compliance requirements.

Education & Research

Students and researchers can use AI Client for tutoring, research assistance, and data analysis without concerns about academic integrity or data privacy.

Offline & Remote Work

Deploy in environments with limited connectivity such as remote offices, research stations, or air-gapped networks for maximum reliability.

Ready to Experience AI Client?

Get started with AI Client and AI Server today. Experience the power of OpenAI's GPT-OSS models with complete privacy and control on your Windows PC.

Download AI Client Download AI Server