GPT Image 2.5 Sunburst 对比 Seedream 5.5：连续 15 轮编辑实测
有人真拿两个文生图模型连改 15 轮，每轮基于上张输出，结果 Seedream 5.5 到第 10 轮画面还没崩，GPT 版已经橙化锐化过头。经常改稿改到第 N 版的设计师和运营可以看看，毕竟每张才 0.02 美元。
博主 kimmonismus 用同一组提示词、同一顺序对 GPT Image 2.5 Sunburst 和 Seedream 5.5 各做 15 轮连续编辑，每轮都在上一轮输出基础上修改。编辑内容从红外套、黄铜提灯、换字幕，逐步到把月亮换成地球、燃烧的太阳、冰、铜金材质，最后让钟表匠把球体装袋带走。
两个模型都保住了标题文字不崩。差异在画面其他部分：到第 10 轮左右，GPT 版本已经偏橙、过度锐化，而 Seedream 5.5 仍基本保持初始场景的原貌。
价格方面，Seedream 5.5 通过 BytePlus 的图像套餐售卖，约每张 0.02 美元。对需要反复修改的场景，这种多轮一致性正是关键差异点。
GPT Image 2.5 Sunburst vs. Seedream 5.5, same scene, 15 edits in a row.
I gave both models the same prompts in the same order, and each round worked on its own previous output. Red coat, brass lantern, new subtitle, then the moon became Earth, a burning sun, ice, copper and gold, until the watchmaker bags the sphere and carries it off.
Both kept the headline intact. The difference is in everything around it. By round 10 the GPT version has gone orange and over-sharpened, while Seedream 5.5 still looks like the room I started with.
BytePlus sells it at about $0.02 per image in its image packs. For anyone doing revision-heavy work, that's the interesting part.
This report is categorized under AITOP's "Models" desk. Within our cross-regional analytical framework, it directly maps to US-China foundation model benchmarks and commercialization comparison and AI developer toolchains, coding agents, and engineering workflows. Key entities and technical topics under continuous tracking include GPT Image 2.5 Sunburst, Seedream 5.5, BytePlus, 图像编辑.
Source attribution: curated from kimmonismus (@kimmonismus).
