ChatGPT's Developer Mode:
One-Word Image Commands

Upload a photo. Type one word. Get a cutaway, a blueprint, an x-ray, an exploded view. No prompt engineering required — just the right trigger word.

ChatGPT Image Tools Free To Read
7 min read

This is the first Developer Mode post — the corner of Editor's Notes for the unglamorous tricks that just work. No funnel, no offer, no "secret." Just a genuinely useful pattern for getting more out of a tool you're probably already using.

Where this came from: a 279-word codebook compiled by newsletter writer John Savage (johnsavage.beehiiv.com), built around a simple idea — upload an image, type one specific word, and ChatGPT reinterprets the photo as a diagram, cutaway, comparison, or stylized reveal. I'm not reprinting all 279 here; that's his compiled list and it's worth subscribing to his newsletter directly if you want the full set. What follows is a curated starter kit, organized by what you'd actually reach for.

What's actually going on here

These aren't secret ChatGPT commands or hidden settings. They're one-word prompts — labels like /cutaway or /blueprint — that work because they're specific and unambiguous. "Show me the inside of this" is vague and the model has to guess what you mean. "/xray" tells it exactly what kind of reveal to attempt. The trick isn't a jailbreak. It's just precise prompting compressed into a single word.

Real vs. Bait

Bait: "279 SECRET codes ChatGPT doesn't want you to know." These are custom labels someone wrote, not official commands, and there's nothing secret about them.

Real: the underlying technique works. A tight, specific one-word prompt genuinely produces cleaner results than a vague sentence — that part holds up regardless of the marketing around it.

How to use them

The starter kit

Instead of all 279, here are the ones worth actually keeping on hand — grouped by what you're trying to do.

Anatomy

/cutaway

Slices away part of the exterior to show what's inside.

Anatomy

/xray

Reveals internal structure straight through the surface.

Anatomy

/explodedview

Spreads every component apart while keeping positions clear — great for anything with visible parts.

Anatomy

/layers

Separates the subject into stacked layers, front to back.

Drafting

/blueprint

Turns the photo into a technical blue-line drawing.

Drafting

/schematic

Simplifies the subject into a functional diagram.

Drafting

/isometric

Angled engineering-style view, useful for product or furniture shots.

Function

/howitworks

Visually explains the basic function of whatever's in frame.

Compare

/beforeafter

Shows a change, repair, or transformation side by side.

Compare

/proscons

Lays out advantages and disadvantages clearly.

Compare

/scalecompare

Places the object beside familiar items or a person for intuitive size.

Instruct

/stepsequence

Breaks a task into frame-by-frame steps — handy for how-to content.

Creative

/infographic

Explains the subject with clean visual information blocks.

Creative

/whiteboard

Turns the image into a hand-drawn whiteboard-style explanation.

Creative

/isometric

Also doubles as a clean product-shot style for social posts.

Creative

/annotatedphoto

Adds clean, direct labels onto the photo itself.

The trick isn't the word. It's that a one-word command removes every chance for the model to misread a vague sentence.

Who this is actually useful for

Content creators explaining a product. Sellers who need a clean listing image without a design tool. Anyone building a how-to post, a repair guide, or a comparison graphic. It's not going to replace real product photography or a CAD file, but for a fast, free visual explainer, it's a legitimately good shortcut — which is rarer than it sounds in this corner of the internet.

If you want the complete 279-entry codebook — including scientific views like thermal and infrared, worldbuilding styles like cyberpunk and steampunk, and repair/maintenance-specific codes — it's worth going straight to the source.

Source

John Savage's Daily AI Newsletter

Where the full 279-code list originated — worth a subscribe if this kind of practical AI trick is useful to you.

Visit the newsletter →