Editorial Publication

Notes on prompt engineering & workflow

Curated analysis, frontier model breakdowns, visual prompt recipes, and developer notes.

2 articles in Image Prompts · product-update

Aug 18, 2026•5 min

Google Lets You Hide the Sparkle, Not the Invisible Watermark

As of 14 August 2026, Gemini and Flow let you turn off the visible sparkle on Nano Banana and Omni outputs. Josh Woodward of Google Labs says invisible SynthID and C2PA credentials remain. Pretty corners are optional. Provenance is not.

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Imagen 4 Shut Down August 17: Prompt Nano Banana Instead

Image Prompting

Aug 18, 2026•5 min

Imagen 4 Shut Down August 17: Prompt Nano Banana Instead

Google retired Imagen 4 on 17 August 2026. The imagen-4.0-generate-001, ultra, and fast endpoints are gone. The replacement is gemini-3.1-flash-image — Nano Banana — and the call is generate_content, not generate_images.

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