GPT Image 2.5 high vs GPT Image 2 high: price per image

At the same 1024x1024 size and the same high setting, GPT Image 2.5 is about a quarter of the price of GPT Image 2. fal lists $0.211 for GPT Image 2 and $0.05268 for GPT Image 2.5; on Sume, which bills list x 1.25, that becomes about $0.264 against $0.066. Low quality is nearly the same on both. The gap is in medium and high, and it holds at 4K.

Side by side

Both fal pages were read on 2026-10-03. Token rates are identical on OpenAI's pricing page ($30 per million image output tokens), so the difference is how many output tokens each model's quality tiers use. Sume keeps ChatGPT Image 2 selectable, per its image docs.

What not to conclude

The tiers are not the same quality: GPT Image 2.5 adds xhigh and max, and at 1024x1024 its max ($0.21072) lands at GPT Image 2's high price. Judge output by testing a prompt on both before moving a pipeline. The price cut is real; a like-for-like quality claim needs your own images. For the full 2.5 ladder see the price table.