ChatGPT Image 2.5
Pick ChatGPT Image 2.5 for everyday stills and edits when you want the faster default.
Open ChatGPT Image 2.5 in Image LabHead-to-head · Image Lab
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.
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
ChatGPT Image 2.5
ChatGPT Image 2.5 Sunburst
Provider
ChatGPT Image 2.5
OpenAI
ChatGPT Image 2.5 Sunburst
OpenAI
Modes
ChatGPT Image 2.5
Text to image · Image to image
ChatGPT Image 2.5 Sunburst
Text to image · Image to image
Edit from a still
ChatGPT Image 2.5
Yes, one source still
ChatGPT Image 2.5 Sunburst
Yes, one source still
Aspect ratios
ChatGPT Image 2.5
4: 9:16, 1:1, 4:5, 16:9
ChatGPT Image 2.5 Sunburst
4: 9:16, 1:1, 4:5, 16:9
Size in Image Lab
ChatGPT Image 2.5
1024 × 1024 at 1:1
ChatGPT Image 2.5 Sunburst
1024 × 1024 at 1:1
Output
ChatGPT Image 2.5
Raster still
ChatGPT Image 2.5 Sunburst
Raster still
Prompt length
ChatGPT Image 2.5
Up to 8 KB
ChatGPT Image 2.5 Sunburst
Up to 8 KB
Large source stills
ChatGPT Image 2.5
No extra scaling
ChatGPT Image 2.5 Sunburst
No extra scaling
Best for
ChatGPT Image 2.5
Product shots and image-to-image edits.
ChatGPT Image 2.5 Sunburst
Intricate detail and precise, tightly scoped edits.
Which to pick
Which one should you use?
ChatGPT Image 2.5 and ChatGPT Image 2.5 Sunburst share the same Image Lab envelope: the four ad sizes (16:9, 1:1, 4:5, 9:16), text-to-image, and edits from one source still. They are quoted the same at the same size and input, so the choice is not cost. ChatGPT Image 2.5 is OpenAI’s default image model. Sunburst is the precision variant: more fidelity on intricate detail and edits scoped closely to the instruction, with longer generation times. Draft on the default, switch to Sunburst for the detailed keeper.
ChatGPT Image 2.5 Sunburst
Pick Sunburst for intricate detail or an edit that must change only what you asked, and accept a longer wait.
Open ChatGPT Image 2.5 Sunburst in Image LabQuestions, answered
ChatGPT Image 2.5 vs ChatGPT Image 2.5 Sunburst FAQ
What is the difference between GPT Image 2.5 and Sunburst?
ChatGPT Image 2.5 is OpenAI’s default image model. Sunburst is its precision variant: more fidelity on intricate detail and edits scoped closely to the instruction, with longer generation times.
Does Sunburst use more of my plan?
No. In Image Lab both are quoted from the same size price table, so the same aspect ratio and input use the same share of the allowance. 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.
Do both support the same sizes and edits?
Yes. Both make the four ad sizes (16:9, 1:1, 4:5, 9:16) and edit from one source still.
Are ChatGPT Image 2.5 and ChatGPT Image 2.5 Sunburst 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.
Nano 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
Both generate and edit stills from one source image. ChatGPT Image 2.5 takes the four ad sizes; Seedream 5 Pro takes all ten Image Lab aspect ratios at about 2.2–2.4 megapixels.
Open compareIdeogram 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.
Open compareNano Banana 2.1 vs Nano Banana Pro
Two Google stills models with the same ten aspect ratios, the same 1K output, and edits from one source still. Pro is the higher-fidelity path and uses more of your allowance per still.
Open compare