# Text in Images Is Getting Reliable, but Proofread It Anyway: Ideogram 4.5, GPT-Image-2.5 and Nano Banana 2.1

- Published: 15 October 2026
- Updated: 15 October 2026
- Author: RenderBob team
- Category: Guides
- Canonical: https://renderbob.ai/blog/text-in-ai-images-ideogram-4-5-proofreading-workflow

Ideogram 4.5, GPT-Image-2.5, and Nano Banana 2.1 advertise reliable text in images. Ideogram's own guide still shows wrong numbers, extra headings, and lines that wrap and drop punctuation.

Three image models now advertise reliable text rendering. Documentation for one of them still lists cases where it gets text, numbers, and layout wrong.

## What each claims

Runway's API changelog lists Ideogram 4.5 as added on 12 October, for legible text and layout, mask-based editing, and up to five reference images. Runware's editing guide describes the same model as editing a source image with up to four further references, so the first of Runway's five is the picture being edited. Runware says the model keeps untouched regions intact across repeated edits. Google reports better text rendering and infographic layout in Nano Banana 2.1. On OpenAI's Higgsfield page, Alex Mashrabov says GPT-Image-2.5 can reliably render text and infographics. That is a customer's CEO, and the page cites no test.

## What the documentation admits

Runware's Ideogram 4.5 text guide is useful because it shows the misses:

- Magic Prompt can rewrite your prompt and change the layout around quoted text, even when the words survive.
- A long line in a narrow space can wrap and lose punctuation. Their juice-label example dropped a separator.
- The model may add elements you did not ask for, such as a heading or a "NEW" burst.
- An Arabic example showed a different number than the prompt specified.
- Body copy is better set in your own layout than generated into the image.

## Put exact text in quotation marks

Quote every line that must appear, and describe position and size line by line. The quotes are how the model separates copy from the description of the picture.

## Turn off prompt rewriting

When the copy must be exact, turn Magic Prompt off. Runware's paired example kept the words either way and changed the layout when rewriting was on.

## Check every number, date, and name

Compare them with the source. A wrong price, date, or credit is the expensive miss, and it can look fine if you do not read the script.

## Have a native reader check non-Latin text

Runware's Arabic sample rendered a different number from the one in the prompt. Someone who reads the script has to see the output before it ships.

## Set body copy in your editor

For anything longer than a headline, generate the image without the paragraph and set the type yourself. Runware says short labels render more reliably than body copy.

## Keep the prompt with the output

Store them together so a wrong line can be traced to the prompt, the rewrite, or the model.

## Why this matters for film work

Title cards, lower thirds, signage inside shots, and festival posters are where text errors reach the audience. Our festival disclosure guide listed submission rules where a wrong name or date can matter. Treat generated text as a draft you have to check.

## What to watch

Independent text-accuracy tests that include numbers and non-Latin scripts, which vendor demos usually skip.