LLMs · in AI thumbnails + ad creative

Claude for AI thumbnails + ad creative

Prompt engineer in the AI thumbnails + ad creative stack. A great Midjourney prompt is the difference between brand-grade and stock-looking. Claude turns a 1-line brief into a structured Midjourney prompt with style, mood, lighting, lens, aspect ratio, and the right --ar / --v flags.

Updated 2026-05-05· 1 weeks ago

Claude· Prompt engineerMidjourney· Image generationCanva· Typography + brand polish

Where Claude fits in the workflow

Brief to Midjourney prompt

One Claude turn. Brief in, structured prompt out.

Prompt · Creative brief → Midjourney prompt

Turn the creative brief below into a Midjourney prompt that produces a brand-grade image. Don't generate, just write the prompt.

Brief:
"""
{{1 to 3 sentences: what's the image for, what should it convey, brand mood, where it'll be used (thumbnail / ad / OG image / social)}}
"""

Output the prompt in this exact structure (one line):

[subject], [composition], [style + reference artist or movement], [lighting], [color palette], [lens / camera if photo-real], [mood], --ar [aspect ratio], --v [latest version], [optional: --style raw or --niji]

Constraints:
- Specific, not generic. Name an artist, a film, or a concrete reference.
- One mood, one lighting direction. Don't list 5 contradictory adjectives.
- For thumbnails: --ar 16:9. For OG images: --ar 1.91:1. For Reels: --ar 9:16.
- Strip "ultra-realistic 8k masterpiece" filler — adds nothing to current Midjourney.
- For brand work, prefer --style raw (less stylized).

Output the prompt only. No commentary.

Cost in this stack

Free tier

Of the $30/mo hobby budget

Tool pricing

$20/mo Pro · Sonnet API $3/$15 per M tokens (input/output)

Alternatives to Claude at this step

ChatGPT

OpenAI's general-purpose chat + GPT-4o

$20/mo Plus

Other tools in the AI thumbnails + ad creative stack

Midjourney

Image generation