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Prompt Library · Image

Discount Poster with Turkish Text (Letter Accuracy Tested)

Campaigns and postersPortrait 4:5 · Instagram posts and carouselsRestaurants and cafésHotels and spasE-commerceService businesses
Output (GPT Image 2.5): a cream background with a green and orange Turkish headline meaning 'weekend breakfast 20% off', a subline meaning 'Saturday and Sunday · 9 a.m.–1 p.m.', and an illustration of a tea glass and a simit
AI-generated · made by us
Output (Nano Banana 2, same prompt): the same headline and subline in green and orange, with an illustration of a thin-striped tea glass and a sesame-covered simit
AI-generated · made by us

Prompt for the model

Instagram post poster for a [breakfast café] campaign. Large headline text exactly: "[HAFTA SONU KAHVALTISI %20 İNDİRİMLİ]". Smaller text exactly: "[Cumartesi ve Pazar · 09.00–13.00]". Write every letter exactly as given, including the Turkish characters (ş, ğ, ı, İ, ç, ö, ü); do not translate and do not add other words. Layout: headline at the top, [a simple flat illustration of a tulip-shaped tea glass and a simit] in the lower two thirds, generous empty margins. Colors: [cream background, deep green and warm orange]. Clean modern sans-serif type, high contrast, readable on a phone.

Replace the gold [bracketed] parts to match your own product, space or brand.

Keep unchanged

The prompt tells the model not to change these. Check the result anyway: these are the parts that break most often.

  • Every letter of the text
  • Turkish characters (ş, ğ, ı, İ)

When not to use it

Don't publish without checking the text letter by letter: in testing, both models spelled it correctly, but there's no guarantee they will every time.

Don't have the model write information that can't tolerate errors, such as prices, dates, phone numbers or addresses, into the image; add it afterwards with a tool like Canva. On a food poster, don't use an AI-generated "photo" in place of a real product photo; customers will find the plate looks different.

What it does and how to adapt it

Creates an Instagram-post-sized campaign poster, text included. Turkish letters (ş, ğ, ı, İ) are the weakest point of image models; this prompt was run on two models at the same time and the letters were checked one by one.

In the square brackets, change the business type, the headline, the subline, the illustration and the colors. Write the text in quotation marks exactly as you want it to appear; don't delete the "do not translate" sentence, or the model may translate the text into English.

The examples were generated with GPT Image 2.5 and Nano Banana 2 via Higgsfield. The simit (a Turkish sesame bread ring) and the tea glass are illustrations, not real product photos.

Generation log

Model
GPT Image 2.5 (OpenAI) · second example Nano Banana 2 (Google)
Date generated
October 2, 2026
Attempts
Got it on the first try
Aspect ratio
4:5
Quality
medium (GPT)
Generated via
Higgsfield API
[Fields] in the example
business: breakfast café · headline: HAFTA SONU KAHVALTISI %20 İNDİRİMLİ · subline: Cumartesi ve Pazar · 09.00–13.00 · illustration: tulip-shaped tea glass and a simit · colors: cream, deep green, warm orange
Resolution
2k
Job ID
1ce644a8-a004-496f-8eb2-192482214c0d · 28526ee8-872e-497b-b651-95eca7ca3c20

What happened across attempts: Both models spelled every letter correctly on the first attempt: the dotted İs in "İNDİRİMLİ", the dotless Is in "KAHVALTISI", and the middle dot and the dash in the subline. The difference is in the illustration: GPT's simit doesn't really look like a simit, while Nano Banana's is more accurate. Two attempts, two models; a single attempt with each.

Even with the same prompt and the same settings, you won't get an identical result: models generate something different every time. The example shows what kind of result this prompt produces; it is not a guarantee.

If you'll use this image in an adIn Turkey, AI-generated ad content falls under a labeling rule: when a label is required and how to word it. (in Turkish)

Image generation tools

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