# ChatGPT (OpenAI GPT-4o)

> OpenAI's flagship multimodal foundation model powering conversational web apps and REST APIs.

- **Official Website**: <a href="https://openai.com/" target="_blank" rel="noopener noreferrer">openai.com</a>
- **Category**: [AI Models](../README.md#ai-models)
- **Type**: Multimodal Foundation Model
- **Pricing / License**: Freemium

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## Overview

OpenAI's GPT models (including GPT-4o, GPT-4o-mini, and the o-series reasoning models) are among the most widely deployed AI models globally. They offer high-speed multimodal understanding across text, audio, and vision with comprehensive developer APIs.

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## Key Highlights & Features

**Multimodal Input & Output**: Native support for text, code, images, and audio processing.
**High Speed & Low Latency**: GPT-4o-mini offers near-instantaneous responses at low token costs.
**Structured JSON Outputs**: Enforces strict JSON Schema compliance for seamless web API integration.
**Massive Ecosystem**: Supported by virtually every web framework, SDK, and static site tooling library.

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## How It Works with Static Websites

Static websites can integrate ChatGPT (OpenAI GPT-4o) directly via secure client-side fetch calls (with appropriate rate-limiting or serverless edge proxies like Cloudflare Workers), through build-time static generation scripts, or by deploying local open-weight models.

```javascript
// Fetching completions directly or via a lightweight edge function
const response = await fetch("https://api.openai.com/v1/chat/completions", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${API_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    model: "gpt-4o-mini",
    messages: [{ role: "user", content: "Summarize this article for static site meta tags." }]
  })
});
const data = await response.json();
```

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## When to Use It

- Adding intelligent search, summarization, or interactive chat widgets to static websites.
- Pre-rendering dynamic content, translating articles, and generating static markdown at build time.
- Powering local, privacy-first developer tools and offline client-side web applications.