GPT Image 2.5: how to put a title inside a poster image

Find a shape in the picture and use it as the frame

Most AI posters go wrong in the same way. The picture is good, the text is dropped on top, and the two never meet.

This GPT Image 2.5 Sunburst example avoids that. The words sit inside the round opening of a diving helmet. The brass ring around the opening is the border. The dark inside is the background. The poster did not need a box drawn around the title, because the object already provided one.

Almost any picture has a shape you can borrow:

• A window, a doorway or an archway.
• A round object: a clock, a porthole, a lens, a wheel.
• A flat wall, a road, a calm sky, a stretch of water.
• A dark area in a night scene.

Pick the shape first. Then write the prompt so that shape ends up big enough and empty enough to hold words.

Split the words to fit the shape

The title in the example is three stacked lines: THE, then NINTH, then BELL. The short word sits on top.

That is not decoration. It is about width. A round hole is widest in the middle. A single long line would either shrink to fit the narrow top or run straight off the sides. Stacking three lines lets the middle line be the widest, which matches the shape.

Simple rules that hold up well:

• Round shape: stack the lines and centre them. Short word first.
• Tall shape: fewer words per line, more lines.
• Wide shape: one or two lines, left aligned.

Light letters on a dark centre also help. The contrast does half the work of making the title look planned rather than pasted on. The W3C contrast guidance is written for websites, but the numbers are just as useful on a poster.

A prompt that puts the title in the right place

Vertical poster for a fictional mystery series. A detailed antique brass diving helmet fills the frame, seen straight on, lit from the side. The round front opening is dark and empty. Place only this exact text inside the opening, centred on three stacked lines: "THE" / "NINTH" / "BELL". Pale cream letters, bold condensed type, strong contrast against the dark opening. Aged metal texture, muted teal background, no other writing, no logos, no credits.

If the letters come back wrong, do not keep rerolling the whole poster. Generate the artwork with no text at all, then set the title yourself. You get a perfect title every time, and you keep the picture you liked.

Why small text disappears at thumbnail size

Here is the calculation that explains most disappointing posters. It is not about the model, it is about scale.

Say your artwork is 1,200 pixels wide and it gets shown in a listing at 300 pixels wide. That is one quarter of the size. Everything shrinks with it:

So a big title survives and a cast list turns into grey smudge. That is simple division, not a fault in any image model.

The lesson: one dominant title per poster. Everything else belongs in the page around the image, where it stays sharp and selectable.

Keep dates and credits on an editable layer

The artwork and the title can live together forever. Practical details cannot.

A release date moves. A platform name changes. A new market needs the title in another language. If all of that is burnt into one flat image, every small change means regenerating the poster and hoping it comes back the same.

A layered approach is safer:

1. Layer one: the picture, with the title built into it if the title is fixed.
2. Layer two: the date, the platform, the credits, the age rating.
3. Layer three: anything that changes per country or per campaign.

Keep the middle of the poster for the title and the outer edges for layer two. The eye handles that easily, and it matches how people scan a poster in the first place. The idea is old and well described under visual hierarchy: one thing loudest, one thing next, everything else quiet.

Questions people ask

Where to read more

Outside sources

• Visual hierarchy (Wikipedia)Why one element has to be clearly loudest.
• W3C: minimum contrastNumbers for text against a background.
• Diving helmet (Wikipedia)The object in the example, if you are curious about the details.

More from DaFreeAi

• Three poster prompts you can copyReady-made briefs for a gig, a market and a travel print.
• How to design a poster in two languagesWhat changes when every line needs a second version.
• Adding text to a busy imageWhat to do when there is no clean frame at all.
• GPT Image 2.5 SunburstThe gallery this poster comes from.