How can I fix openai.BadRequestError: Error code: 400 when generating images with DALL·E 3?

It looks like your code may be missing the client initialization. In the examples, the client is created by instantiating OpenAI. For example:

PYTHONCopied
from openai import OpenAI

client = OpenAI()  # Initialize the client with your API key

prompt = input("What would you like an image of? ")

def generate_image(prompt):
    response = client.images.generate(
        model="dall-e-3",
        prompt=prompt,
        n=1,
        quality="standard",
        size="1024x1024"
    )
    image_url = response.data[0].url
    return image_url

print(generate_image(prompt))

Make sure that:

• You instantiate the client (e.g., with client = OpenAI()).
• Your API key is set either via environment variables (OPENAI_API_KEY) or passed as a parameter when initializing the client.
• You are using the correct version of the OpenAI package that supports the DALL·E 3 image generation methods.

Double-checking these should help resolve the issue.