acobham
5eb4426d30
- README: rewrite index to reflect actual files (STACK/CONTENT/OPTIMIZATION); remove 15 dead links to old numbered SOPs; add subdirectory table; update image gen to Google Imagen as default - STACK: fix wp-divi-pipeline script paths; genericize vibrantyou/domain examples; strip pre-existing em dashes throughout - CONTENT: update image generation default to Google Imagen API with allotted quota - image-gen-workflow: remove client-specific cobhamtech data; generalize brand palette step; update date - wp-divi-pipeline-to-am-stack: remove vibrantyou.yoga client data block; fix Related SOPs links to current files
78 lines
2.2 KiB
Markdown
78 lines
2.2 KiB
Markdown
# Image Generation Model Selection
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Source: cutout.pro/model-comparison/imagen-vs-nanobanana + Gemini API model audit (2026-05-10)
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---
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## Available Models (via Google Gemini API)
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### Imagen 4: Quality Mode
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Model ID: `imagen-4.0-generate-001`
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Also available: `imagen-4.0-ultra-generate-001`
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Strengths:
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- Photorealistic, high-fidelity output
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- Handles complex prompts with multi-element consistency
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- Superior text rendering inside images
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- Best for brand-critical, final-delivery assets
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Use for:
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- Hero background images
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- Service page headers
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- Marketing and case study visuals
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- Any image that ships to production
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---
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### Nano Banana (Gemini 2.5 Flash Image): Speed Mode
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Model ID: `gemini-2.5-flash-image`
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Strengths:
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- Low latency, high volume
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- Cost-effective for rapid iteration
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- Good for concept previews and brainstorming
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Use for:
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- Draft previews before committing to Imagen 4
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- AI chatbot or interactive UI image generation
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- Avatar or thumbnail generation at scale
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- Rapid iteration when exploring compositions
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---
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### Imagen 4 Fast: Budget Mode
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Model ID: `imagen-4.0-fast-generate-001`
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Use for:
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- Quick internal previews
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- Non-public-facing visuals
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- High-volume batch jobs where quality is secondary
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---
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## Recommended Workflow
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Step 1: Draft with Speed Mode (`gemini-2.5-flash-image`)
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Generate 2-4 variations quickly. Confirm composition, subject, and tone. Low cost.
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Step 2: Refine with Quality Mode (`imagen-4.0-generate-001`)
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Take the winning prompt from step 1. Generate final version at full quality.
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This is the image that goes into the site.
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Step 3: Review against brand palette
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Check that image tones align with the project's color tokens from `tokens.css`.
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All hero images need to work behind dark overlays.
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Step 4: Save to project assets
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Path convention: `assets/images/{page}-{slot}.jpg`
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Examples: `hero-bg.jpg`, `about-visual.jpg`, `services-bg.jpg`
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---
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## Notes
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- Never use Nano Banana for final production images on client sites
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- Imagen 4 Ultra adds marginal quality gain over standard: not worth the cost for web assets
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- All images should be exported as JPEG at 85% quality, max 1600px wide, for web performance
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- Run generated images through the site CSP: ensure `img-src` allows `self` and `data:` only (no external CDN hotlinking)
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