Prompt Format Probe

Azure gpt-image-2 · gpt-5.4-mini · quality=low · 1536×1024 · 2 repeats each · 2026-05-27
Same scene (family beach walk at dawn), 8 different structural formats for the user message.
style_score = fraction of watercolor style markers in revised_prompt (max 11 markers).
comp_score = fraction of composition markers (max 7 markers).

Format	Images	Scores
A — Prose paragraph 925ch input		style 91% comp 100% 38.6s avg rp 902ch
B — JSON object 1058ch input		style 91% comp 100% 93.8s avg rp 928ch
C — XML tags 1050ch input		style 91% comp 100% 108.4s avg rp 899ch
D — Markdown sections 1019ch input		style 91% comp 100% 115.4s avg rp 968ch
E — Tag list (SD/MJ style) 529ch input		style 82% comp 100% 105.0s avg rp 605ch
F — B_template (production format) 1743ch input		style 91% comp 86% 152.8s avg rp 840ch
G — YAML 1017ch input		style 91% comp 100% 123.6s avg rp 928ch
H — Terse single sentence 157ch input		style 31% comp 63% 72.3s avg rp 403ch