Ideogram V4.5
Pick Ideogram V4.5 for posters, logos, and design stills where the words on the image have to read correctly.
Open Ideogram V4.5 in Image LabHead-to-head · Image Lab
Ideogram V4.5 vs ChatGPT Image 2.5 for text in images
Ideogram V4.5 is the Image Lab model listed for posters, logos, and stills with readable text, at a 2K-band size across ten aspect ratios. ChatGPT Image 2.5 is listed for product shots and edits at the four ad sizes.
Runs online, no installIncluded in plans from $19/moSpecs checked 25 October 2026 from the live Image Lab catalog
Catalog specs
Side by side in Image Lab.
Modes, edits, aspect ratios, size, and output come from the live Image Lab catalog, not from a ranked shoot-out.
Spec
Ideogram V4.5
ChatGPT Image 2.5
Provider
Ideogram V4.5
Ideogram
ChatGPT Image 2.5
OpenAI
Modes
Ideogram V4.5
Text to image · Image to image
ChatGPT Image 2.5
Text to image · Image to image
Edit from a still
Ideogram V4.5
Yes, one source still
ChatGPT Image 2.5
Yes, one source still
Aspect ratios
Ideogram V4.5
10: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16
ChatGPT Image 2.5
4: 9:16, 1:1, 4:5, 16:9
Size in Image Lab
Ideogram V4.5
2048 × 2048 at 1:1
ChatGPT Image 2.5
1024 × 1024 at 1:1
Output
Ideogram V4.5
Raster still
ChatGPT Image 2.5
Raster still
Prompt length
Ideogram V4.5
Up to 8 KB
ChatGPT Image 2.5
Up to 8 KB
Large source stills
Ideogram V4.5
No extra scaling
ChatGPT Image 2.5
No extra scaling
Best for
Ideogram V4.5
Posters, logos, and stills with readable text.
ChatGPT Image 2.5
Product shots and image-to-image edits.
Which to pick
Which one should you use?
Ideogram V4.5 is the Image Lab model built around on-image typography: posters, logos, and design stills with readable text, mapped to a 2K-band size (2048 × 2048 at 1:1) across ten aspect ratios. ChatGPT Image 2.5 is OpenAI’s default model, listed for product shots and edits at the four ad sizes. Both edit from one source still. When the words are the point, start with Ideogram V4.5. Clip Studio does not publish a text-accuracy benchmark, so check the spelling on every result. For an editable SVG logo, use Ideogram Vector instead.
ChatGPT Image 2.5
Pick ChatGPT Image 2.5 for product shots and edits at the ad sizes, when on-image text is not the main job.
Open ChatGPT Image 2.5 in Image LabQuestions, answered
Ideogram V4.5 vs ChatGPT Image 2.5 for text in images FAQ
Which is better for text in images, Ideogram V4.5 or GPT Image 2.5?
Ideogram V4.5 is the Image Lab model listed for posters, logos, and stills with readable text. Clip Studio does not publish a text-accuracy benchmark, so check spelling on every result from either model.
What sizes does each model make?
Ideogram V4.5 maps ten aspect ratios to a 2K-band size, for example 2048 × 2048 at 1:1. ChatGPT Image 2.5 makes the four ad sizes: 16:9, 1:1, 4:5, and 9:16.
Can I get a vector logo instead?
Yes. Ideogram Vector in Image Lab saves an editable SVG instead of a raster still.
How are they priced?
Both are included in every Clip Studio plan and use the same monthly generation allowance, and each setup is quoted in Image Lab before you generate. Plan details live on the pricing page.
Are Ideogram V4.5 and ChatGPT Image 2.5 free?
No. Both run in Image Lab, which is included in every Clip Studio plan, and every plan opens every Image Lab model. Eligible new accounts get one free Topic Short, which is a separate studio.
More compares
Related head-to-heads.
ChatGPT Image 2.5 vs ChatGPT Image 2.5 Sunburst
Same OpenAI model family, same four ad sizes, same edit support, and the same quote at the same size. Sunburst is the precision variant for intricate detail and tightly scoped edits, with longer generation times.
Open compareNano Banana 2.1 vs ChatGPT Image 2.5
Both generate and edit stills from one source image. Nano Banana 2.1 accepts ten aspect ratios at 1K; ChatGPT Image 2.5 (GPT Image 2.5 on fal) accepts the four ad sizes: 16:9, 1:1, 4:5, and 9:16.
Open compareChatGPT Image 2.5 vs Seedream 5 Pro
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Open compareKrea 3 vs FLUX 3 Image
Both cover all ten aspect ratios and edit from one source still. Krea 3 expands short prompts and makes about 2-megapixel stills; FLUX 3 Image makes 1K stills for photoreal looks and precise local edits.
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