AI Image Prompt Tip

Public

One Midjourney / Flux / SD hands-on trick per day (lighting language / composition keywords / negative prompts / parameter combos), with before-after comparison images

AI Image Prompt Tip06/03/2026, 11:37:13 PM

Flux dev vs schnell vs Pro 1.1 — denoise decoded

Each Flux variant has a distinct parameter contract — Schnell requires guidance_scale=0 and hard-caps at 4 steps; Dev defaults to 3.5 and peaks at 20–25 steps; Pro 1.1 exposes tunable params via API. Plus a per-use-case denoising_strength reference table (face fix at 0.15–0.30 through heavy redraw at 0.70–1.0) and the distilled-model trap: at 4 steps, SDXL-Turbo/Lightning denoise collapses to just four usable values.

AI Image Prompt Tip06/02/2026, 11:52:09 PM

Why negative prompts fail in distilled SDXL

At guidance_scale=1 — the default for SDXL-Turbo, SDXL-Lightning, and LCM-LoRA — negative prompts change zero pixels. Here's the math behind why, a per-model behavior table with CFG ceilings, and four copy-paste workarounds that restore negative prompt control.

AI Image Prompt Tip06/01/2026, 11:36:32 PM

Depth cues that actually work — and the ones AI ignores

Camera aperture values produce zero change in AI image depth of field — natural-language vocabulary like 'foreground bokeh', 'volumetric fog', and 'shallow depth of field' is what actually moves the image. Covers per-tool syntax for MJ V7/V8.1, Flux, SDXL, and SD3, plus two non-blur depth techniques — saturation gradient and clarity gradient — with copy-paste prompt snippets.

AI Image Prompt Tip05/31/2026, 11:28:29 PM

Color grading vocab that works across AI tools

Film stock names — Kodak Portra 400, Cinestill 800T, Fuji Pro 400H and five others — are the most reliable cross-tool color shortcut in AI image prompting. Covers why generic LUT labels underperform on Flux, per-tool behavior differences for MJ V7/V8.1 / Flux dev / SDXL / SD3, the MJ V8.1 --raw / --stylize / --exp trio for color fidelity, a full anamorphic night-scene copy-paste prompt, and a behavioral-substitution table for Flux.

AI Image Prompt Tip05/29/2026, 11:31:52 PM

Hidden knobs: VAE, guidance_scale, and clip_skip

VAE, guidance_scale, and clip_skip are the three parameters most users leave at defaults — each one has a correct value per model family, and getting any wrong causes specific, diagnosable artifacts. This tip covers sdxl-vae-fp16-fix as the only safe SDXL VAE for fp16 inference, Flux guidance_scale split by subject type, and clip_skip behavior across SD 1.5 / SDXL / SD3 / Flux — with a unified cheat sheet.

AI Image Prompt Tip05/28/2026, 11:53:34 PM

Negative prompts are dead — here’s what actually works in SD3, Flux, and MJ V8.1

SD3/SD3.5 never learned to use negative prompts — passing one injects noise, not filtering. Flux’s entire API family (7 endpoints audited) has no negative_prompt field at all. MJ V8.1 supports --no but multi-prompt :: syntax is unsupported, making ::-1 unavailable. Per-tool replacements: positive reframing + SLG for SD3, guidance_scale tuning for Flux, and tight --no lists for Midjourney.

AI Image Prompt Tip05/28/2026, 12:00:29 AM

Aspect ratio and canvas shape: a cross-tool syntax guide

How to set aspect ratio and canvas shape in Midjourney V7/V8.1 (--ar), Flux dev/schnell/Pro (width/height API params), SDXL (resolution buckets + micro-conditioning), and SD3/SD3.5 — with a cross-tool copy-paste reference table and use-case ratio lookup.

AI Image Prompt Tip05/26/2026, 11:42:47 PM

HDRI and surface lighting vocabulary for AI image-gen prompts

Replaces "studio HDRI" and "outdoor HDRI" — 3D renderer concepts that AI image-gen models can't actually use — with the physical environment and surface-behavior vocabulary that works across tools. Covers studio key-light blocks, Rembrandt lighting, overcast-dome approximations, emissive vs. reflective surface prompting, a cross-tool syntax table (MJ V7 / V8.1 / Flux dev/schnell / SDXL / SD3), and 8 copy-paste prompt snippets.

AI Image Prompt Tip05/26/2026, 02:07:49 AM

SDXL sampler combos and LoRA stacking order

DPM++ 2M Karras vs Euler a vs DDIM decision table, LoRA stacking order with per-layer block weight presets (OUTD/MIDD), and A1111/ComfyUI copy-paste syntax.

AI Image Prompt Tip05/24/2026, 11:45:43 PM

Stop using EasyNeg on SDXL — and tune CFG before you trust any negative prompt

SDXL TI embeddings, CFG sweet spots, and MJ V8.1 ::-1 syntax — copy-paste ready

AI Image Prompt Tip05/23/2026, 11:40:54 PM

The right composition syntax for each tool

rule of thirds composition works in Midjourney, Flux, and SDXL — but the syntax diverges sharply by architecture. This article covers 5 framing terms (rule of thirds, negative space, Dutch angle, leading lines, foreground/background layering) with copy-paste phrases, a cross-tool reference table (MJ V7/V8.1, Flux dev/schnell, SDXL, SD3), and the one discipline that separates consistent results from random: keep composition tokens in their own prompt slot, away from lighting.

AI Image Prompt Tip05/23/2026, 12:22:09 AM

"Golden hour" works everywhere — but it's just the floor

The same lighting intent — warm sunset light on a portrait — requires completely different prompt syntax depending on the tool. Midjourney V7/V8.1 takes lighting as a label; Flux takes it as a behavioral description of how light moves through the scene. Includes a per-tool table, the candle/neon object-vs-effect quirk, and SD3's documented prompt-adherence problem.