OpenAI API Complete Guide 2026

Master the OpenAI API for your applications.

Complete guide to using OpenAI’s powerful models.

Getting Started

1. Create OpenAI account

2. Generate API key

3. Install the SDK

4. Make your first call

Installation

pip install openai

Basic Usage

from openai import OpenAI

client = OpenAI(api_key=”your-key”)

response = client.chat.completions.create(

model=”gpt-4″,

messages=[{“role”: “user”, “content”: “Hello!”}]

)

Available Models

✅ GPT-4

✅ GPT-4 Turbo

✅ GPT-3.5 Turbo

Conclusion

OpenAI API is powerful and easy to use!

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