Use Google Imagen

imagen.py

import re
import requests
import json
import base64

# SET THESE VALUES
PROJECT_ID = "<REPLACE_WITH_YOUR_PROJECT_ID_HERE>"
TOKEN = "<REPLACE_WITH_YOUR_TOKEN_HERE>"
PROMPT = "futuristic portrait of mona lisa, canon eos 5d mark iii, 50mm f/1.4 usm lens"

# Optionally change these values
SAMPLE_COUNT = 4
GUIDANCE_SCALE = "high" # "low", "medium" or "high"
MODEL_VERSION = "002" # "001" or "002"

def generate_image(prompt, token):
    url = f"https://us-central1-aiplatform.googleapis.com/v1/projects/{PROJECT_ID}/locations/us-central1/publishers/google/models/imagegeneration@{MODEL_VERSION}:predict"
    headers = {
        "Authorization": f"Bearer {token}",
        "Content-Type": "application/json; charset=utf-8"
    }
    data = {
        "instances": [
            {
                "prompt": prompt
            }
        ],
        "parameters": {
            "sampleCount": SAMPLE_COUNT,
            "guidanceScale": GUIDANCE_SCALE
        }
    }
    response = requests.post(url, headers=headers, data=json.dumps(data))
    return response.json()

def save_images(response_json, prompt):
    prompt = re.sub(r'\W+', '', prompt)
    for i, prediction in enumerate(response_json['predictions']):
        img_data = base64.b64decode(prediction['bytesBase64Encoded'])
        # Name the images as prompt_i.png
        with open(f'{prompt}_{i}.png', 'wb') as f:
            f.write(img_data)

if __name__ == "__main__":
    response = generate_image(PROMPT, TOKEN)
    save_images(response, PROMPT)

Usage

Login to Google Cloud Console - Imagen and click on the cloud shell in the top left corner

Then enter gcloud auth print-access-token press ENTER and click on Authorize. Copy the Access-Token and paste it into line 8.

In the top left corner click on "My Project" (or similar)

and copy the project id to paste it into line 7 of the python script.

Then before using the script install requests by executing pip install requests and finally execute the script with python imagen.py.

You can change the prompt and more settings at the top of the script.

apparently you have to gain access via https://cloud.google.com/ai/earlyaccess/join?hl=en which is weird because I never got an invite mail, only news from the trusted tester newsletter, but can still use the api