GPT Image 2.5
Start with a familiar brief and inspect where the output differs from your existing image results. Keep the same subject and composition while trying Sunburst and Flare separately; neither variant is a Stable Diffusion checkpoint.
GPT Image 2.5 model comparison
Is this a Stable Diffusion checkpoint?
GPT Image 2.5 comes in two distinct variants. It is not a checkpoint that accepts your Stable Diffusion sampler or LoRA settings.
Technical specs
20,000
Prompt characters
30 MB
Per reference file
1K–4K
Output size options
1–4
Images per batch
Who should use model comparisons?
A practical starting point
Image makers evaluating a different generation family can compare the same visual brief against their current checkpoint workflow.