OpenAI Image Gen

Generate images via the OpenAI Images API with an HTML gallery viewer.

Run

Note: Image generation can take longer than typical timeouts. Set a higher timeout when running via shell (e.g., 300 seconds).

python3 {baseDir}/scripts/gen.py

Useful Flags

# GPT image models with various options
python3 {baseDir}/scripts/gen.py --count 16 --model gpt-image-1
python3 {baseDir}/scripts/gen.py --prompt "ultra-detailed studio photo of a lobster astronaut" --count 4
python3 {baseDir}/scripts/gen.py --size 1536x1024 --quality high --out-dir ./out/images
python3 {baseDir}/scripts/gen.py --model gpt-image-1.5 --background transparent --output-format webp

# DALL-E 3 (note: count is automatically limited to 1)
python3 {baseDir}/scripts/gen.py --model dall-e-3 --quality hd --size 1792x1024 --style vivid
python3 {baseDir}/scripts/gen.py --model dall-e-3 --style natural --prompt "serene mountain landscape"

# DALL-E 2
python3 {baseDir}/scripts/gen.py --model dall-e-2 --size 512x512 --count 4

Model-Specific Parameters

Size

• GPT image models (gpt-image-1, gpt-image-1-mini, gpt-image-1.5): 1024x1024, 1536x1024 (landscape), 1024x1536 (portrait), or auto. Default: 1024x1024
• dall-e-3: 1024x1024, 1792x1024, or 1024x1792. Default: 1024x1024
• dall-e-2: 256x256, 512x512, or 1024x1024. Default: 1024x1024

Quality

• GPT image models: auto, high, medium, or low. Default: high
• dall-e-3: hd or standard. Default: standard
• dall-e-2: standard only

Other Parameters

• GPT image models support --background (transparent, opaque, auto) and --output-format (png, jpeg, webp)
• dall-e-3 supports --style (vivid for hyper-real, natural for more natural looking)
• dall-e-3 only supports n=1; the script automatically limits count to 1

Output

• Image files (*.png, *.jpeg, or *.webp depending on model and format)
• prompts.json (prompt-to-file mapping)
• index.html (thumbnail gallery — open in browser to review)