recent updates

2026-06-09 18:31:59 +02:00
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+# Image Generation Model Selection
+
+Source: cutout.pro/model-comparison/imagen-vs-nanobanana + Gemini API model audit (2026-05-10)
+
+---
+
+## Available Models (via Google Gemini API)
+
+### Imagen 4 — Quality Mode
+Model ID: `imagen-4.0-generate-001`
+Also available: `imagen-4.0-ultra-generate-001`
+
+Strengths:
+- Photorealistic, high-fidelity output
+- Handles complex prompts with multi-element consistency
+- Superior text rendering inside images
+- Best for brand-critical, final-delivery assets
+
+Use for:
+- Hero background images
+- Service page headers
+- Marketing and case study visuals
+- Any image that ships to production
+
+---
+
+### Nano Banana (Gemini 2.5 Flash Image) — Speed Mode
+Model ID: `gemini-2.5-flash-image`
+
+Strengths:
+- Low latency, high volume
+- Cost-effective for rapid iteration
+- Good for concept previews and brainstorming
+
+Use for:
+- Draft previews before committing to Imagen 4
+- AI chatbot or interactive UI image generation
+- Avatar or thumbnail generation at scale
+- Rapid iteration when exploring compositions
+
+---
+
+### Imagen 4 Fast — Budget Mode
+Model ID: `imagen-4.0-fast-generate-001`
+
+Use for:
+- Quick internal previews
+- Non-public-facing visuals
+- High-volume batch jobs where quality is secondary
+
+---
+
+## Recommended Workflow
+
+Step 1 — Draft with Speed Mode (`gemini-2.5-flash-image`)
+Generate 2-4 variations quickly. Confirm composition, subject, and tone. Low cost.
+
+Step 2 — Refine with Quality Mode (`imagen-4.0-generate-001`)
+Take the winning prompt from step 1. Generate final version at full quality.
+This is the image that goes into the site.
+
+Step 3 — Review against brand palette
+Check that image tones align with site color tokens:
+- cobhamtech.com: dark navy (#0c0f18), slate (#1c2d42), blue accent (#2d5a9e), gold (#c79330)
+- All hero images need to work behind dark overlays
+
+Step 4 — Save to project assets
+Path convention: `assets/images/{page}-{slot}.jpg`
+Examples: `hero-bg.jpg`, `about-visual.jpg`, `services-bg.jpg`
+
+---
+
+## Cobhamtech.com Image Plan
+
+| Slot | File | Page | Prompt Theme |
+|------|------|------|--------------|
+| Hero background | `hero-bg.jpg` | index.html | Dark server room, blue ambient lighting, depth of field |
+| About story | `about-visual.jpg` | about.html | IT professional at clean desk, dual monitors, neutral dark background |
+| Services hub | `services-bg.jpg` | services/index.html | Enterprise network infrastructure, abstract, dark |
+| Intro visual | `intro-visual.jpg` | index.html | Business and technology handshake, professional setting |
+
+---
+
+## Notes
+
+- Never use Nano Banana for final production images on client sites
+- Imagen 4 Ultra adds marginal quality gain over standard — not worth the cost for web assets
+- All images should be exported as JPEG at 85% quality, max 1600px wide, for web performance
+- Run generated images through the site CSP — ensure `img-src` allows `self` and `data:` only (no external CDN hotlinking)