Seedream 5.0 Pro在ModelGo：四组真实API测试，费用降低65.2%

四组不同的生产需求、两个API平台，以及实际费用记录。本组测试中，ModelGo合计费用为$0.125294，OpenRouter为$0.360000；在实际交付规格一致的条件下，ModelGo费用低65.20%。

Seedream 5.0 Pro是什么？

Seedream 5.0 Pro侧重复杂构图、图文对齐和文字呈现，也支持通过参考图控制编辑内容。适合品牌版式、信息丰富的宣传板和游戏主视觉。

测试方法与实际费用

本次测试包含四组独立需求：两组纯文字生成、两组参考图生成；在双平台可访问时，使用相同Prompt、参考文件和请求设置。ModelGo费用来自逐条匹配的已结算账单，OpenRouter费用来自已完成响应中的用量费用；表格展示模型输出费用，保留六位小数，不包含单独生成参考图的费用。

费用口径：本文比较模型调用费用，不是为账户充值所需的实际支出；不包含充值或支付手续费，包括另一篇价格对比文章计入的5.5%充值费。本文费用差额及比例仅按调用费用计算。

四个真实生产案例

为准确复现真实调用，本节保留当时提交的英文Prompt原文；中文说明用于解释生产目标。

雕塑装置香水海报

应用行业：奢侈品牌/广告设计。

为虚构香水品牌设计琥珀玻璃与深色洞石装置海报，保留指定瓶身文字、主标语和页脚，并通过晚照形成清晰几何投影。

实际提交的英文Prompt

Create a luxury fragrance campaign poster for fictional brand “VESPER / NO. 04”. The central visual is an architectural installation of translucent amber glass planes surrounding a small rectangular fragrance bottle on dark travertine, with a single beam of late sunlight producing long geometric shadows. The bottle label must read “VESPER” and “04”, with crisp restrained typography. Place the campaign line “AFTER THE LIGHT” in generous negative space above the installation and a very small “Eau de parfum” footer. Balance deep burgundy shadows, amber transmission and warm stone texture. Avoid extra bottles, impossible glass intersections, water splashes, celebrity imagery and invented awards. The design should feel like a commissioned print campaign. Deliver one finished image, not a collage of alternative answers. Respect the specified aspect ratio and keep every requested object and text region distinct.

ModelGo费用低65.20%。

精品酒店建筑杂志封面

应用行业：酒店/杂志出版。

创作精品酒店中庭的建筑杂志封面，包含弧形楼梯、橄榄树和浅水池；为刊名和三条固定封面文案留白，保持结构与透视合理。

实际提交的英文Prompt

Design the cover of a fictional architecture journal called “STILL / PLACES”. Photograph a boutique hotel’s double-height atrium featuring limewashed walls, a sculptural curved stair, a mature indoor olive tree and a shallow reflecting pool. Use believable structural connections, coherent perspective and restrained morning sunlight. Reserve the upper quarter for the journal masthead and place three short cover lines in the lower-left margin: “Quiet interiors”, “Material stories”, “The courtyard issue”. Keep the central stair silhouette unobstructed. Use a warm ivory and sage palette with discreet black typography and premium matte-paper texture. No real publication marks, star ratings or hotel booking claims. Deliver one finished image, not a collage of alternative answers. Respect the specified aspect ratio and keep every requested object and text region distinct.

ModelGo费用低65.20%。

实验室仪器宣传页

应用行业：工业设备/B2B销售。

保留实验室仪器外壳、显示屏、通风口和蓝色旋钮；左侧产品主图，右侧三处细节面板，不添加医疗疗效、精度或认证声明。

这张原创参考图用于ModelGo；对OpenRouter可访问的模型，对照请求也使用同一文件。

实际提交的英文Prompt

Use the supplied compact benchtop laboratory instrument as the exact product reference. Preserve its white enclosure, dark display, side ventilation slots and single blue control dial. Create a B2B brochure spread with one large product hero at left and three aligned detail panels at right showing the sample tray, touchscreen and ventilation grille. Headline “PRECISION, ORGANIZED”; labels “Sample access”, “Clear interface”, “Service access”. Use calm steel-blue accents, precise grid alignment and soft white studio lighting. The product must retain consistent proportions across all views. Do not add medical efficacy claims, measurement accuracy figures, clinical results or certifications. Treat this as a fictional industrial design concept. Deliver one finished image, not a collage of alternative answers. Respect the specified aspect ratio and keep every requested object and text region distinct.

ModelGo费用低65.20%。

幻想滑翔机机库主视觉

应用行业：游戏/环境营销。

保留黄铜帆布滑翔机的双翼梁、座舱和环形推进器，设置黎明悬崖机库及两名成年机械师；标题区留白，维护设施须有结构支撑。

这张原创参考图用于ModelGo；对OpenRouter可访问的模型，对照请求也使用同一文件。

实际提交的英文Prompt

Use the supplied original brass-and-canvas fantasy glider as the exact vehicle reference. Preserve its twin wing spars, suspended cockpit, ochre canvas and circular rear propulsion ring. Create cinematic game key art inside a cliffside hangar at dawn: the glider is suspended over a maintenance platform, two small adult mechanics provide scale, and dust catches sunlight entering through a huge arched opening. Place spare canvas rolls, tools and rigging only where structurally sensible. Keep the glider’s silhouette clear and leave the upper-left rock wall quiet for a title added later. Use warm highlights and deep teal shadows. No licensed vehicles, extra wings, text, interface overlays or impossible floating maintenance equipment. Deliver one finished image, not a collage of alternative answers. Respect the specified aspect ratio and keep every requested object and text region distinct.

ModelGo费用低65.20%。

如何计算费用差额

对于实际交付规格一致的输出，费用降低比例的计算方式为(OpenRouter 实际费用 − ModelGo 已结算费用) / OpenRouter 实际费用 × 100。判断两次输出是否可比时，应检查实际返回的尺寸、时长和音轨。这四组需求的平均单次费用差为$0.058676；如果按同样工作负载重复100或1,000次，费用差约为$5.867647或$58.676471。这只是按本次实测推算的用量示例，不是新增实际账单。

开始使用ModelGo API

先安装requests并设置环境变量MODELGO_API_KEY。以下代码使用首个真实案例的端点、模型ID和参数，已在代码中直接写入实际Prompt。

import os, requests

prompt = 'Create a luxury fragrance campaign poster for fictional brand “VESPER / NO. 04”. The central visual is an architectural installation of translucent amber glass planes surrounding a small rectangular fragrance bottle on dark travertine, with a single beam of late sunlight producing long geometric shadows. The bottle label must read “VESPER” and “04”, with crisp restrained typography. Place the campaign line “AFTER THE LIGHT” in generous negative space above the installation and a very small “Eau de parfum” footer. Balance deep burgundy shadows, amber transmission and warm stone texture. Avoid extra bottles, impossible glass intersections, water splashes, celebrity imagery and invented awards. The design should feel like a commissioned print campaign. Deliver one finished image, not a collage of alternative answers. Respect the specified aspect ratio and keep every requested object and text region distinct.'
headers = {"Authorization": "Bearer " + os.environ["MODELGO_API_KEY"]}
payload = {'model': 'doubao-seedream-5.0-pro',
 'prompt': prompt,
 'n': 1,
 'size': '1728x2160',
 'response_format': 'b64_json'}
response = requests.post('https://api.modelgo.ai/v1/images/generations', headers=headers, json=payload, timeout=420)
response.raise_for_status()
result = response.json()

本示例使用b64_json返回格式，可解码响应中data[0].b64_json的图像数据。

本次Seedream参考图请求通过已测试的生成端点，在image字段传入参考图的data URL。

ModelGo与OpenRouter的模型ID和媒体请求格式存在差异。可以复用创作需求，接入时请根据各平台文档调整端点、参考图结构、任务轮询和下载处理。

ModelGo API文档

在ModelGo使用Seedream 5.0 Pro

使用本页介绍的Seedream 5.0 Pro模型，请前往ModelGo的Models页面。

前往ModelGo使用Seedream 5.0 Pro

参考资料

以下资料用于核对模型能力、接口与用量记录；案例需求由本次测试独立编写。

• 模型官方文档或系列展示：用于了解能力与创意方向；相关系列资料不代表其他变体的规格保证。
• OpenRouter API参考：用于核对请求约定及平台差异。
• OpenRouter用量与费用记录：用于理解用量信息；本文费用来自实际测试记录。
• OpenRouter模型目录API：在新接入前核对模型ID与目录属性。
• OpenRouter图像生成指南：用于了解媒体请求结构和工作流。