OpenAI Image Gen

Generate a handful of “random but structured” prompts and render them via the OpenAI Images API.

Run

python3 {baseDir}/scripts/gen.py open ~/Projects/tmp/openai-image-gen-*/index.html # if ~/Projects/tmp exists; else ./tmp/...

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 futuristic cityscape" --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

Different models support different parameter values. The script automatically selects appropriate defaults based on the model.

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

• Default: standard

Other Notable Differences

• dall-e-3 only supports generating 1 image at a time (n=1 ). The script automatically limits count to 1 when using this model.

• GPT image models support additional parameters:

• --background : transparent , opaque , or auto (default)

• --output-format : png (default), jpeg , or webp

• Note: stream and moderation are available via API but not yet implemented in this script

• dall-e-3 has a --style parameter: vivid (hyper-real, dramatic) or natural (more natural looking)

Output

• *.png , *.jpeg , or *.webp images (output format depends on model + --output-format )

• prompts.json (prompt → file mapping)

• index.html (thumbnail gallery)