近日，Luma Labs宣布推出两款全新图像生成模型:Luma Photon和Photon Flash，这两个图像生成模型是建立在新的突破性架构之上的，可提供超高品质的生成质量，不仅生成速度比市场上其他模型快，而且价格成本更低，为用户带来了新的视觉生成体验。
据官方介绍，在大规模双盲评估中，Luma Photon 在质量、创造力和理解力方面优于市场上的所有模型，同时效率也更高。根据官方提供的图表显示，在指令遵循（Instruction Following）方面，Luma Photon模型的偏好百分比超过60%，显著高于其他模型。
而与其他图像生成模型相比，Luma-Photon生成超高质量图像方面速度更快：
> 在 302.AI上使用Luma Photon
302.AI时刻关注AI资讯，在第一时间接入了Luma Photon和Luma Photon Flash模型，用户可以在绘画机器人和API超市获得，以下是详细的步骤：
【绘画机器人】
1、进入302.AI——点击使用机器人——找到绘画机器人——模型选择Luma Photon——创建绘画机器人；（按照此步骤，也可按需选择其他图像生成模型）
2、进入绘画机器人后——点击输入框右侧的设置——可以选择模型版本：Luma Photon或者Luma Photon Flash。
【API超市】
进入302.AI API文档——搜索Luma；
> Luma Photon实测
速度、质量、价格真这么能打？不如实测对比看看，以下实测模型共有4个，分别是：Luma Photon、Midjourney v6.1、recraft v3、Ideogram v2，一起看看模型的表现如何：
（以下所有效果都由302.AI绘画机器人生成，且为了确保公平性，均取自模型第一次生成的效果）
实测一：人物生成
提示词：中年男子的特写肖像，由柔和的自然光照亮。他的脸上有深刻的皱纹，眼中流露出情感，表现出悲伤与沉思。使用85mm镜头拍摄，聚焦于他的面部特征，同时背景被柔和模糊处理。柔和的灯光创造了微妙的高光和阴影，突出了皮肤的纹理。
Midjourney v6.1：人物皮肤纹理细节虽然都有实现，但是脸部皮肤整体显得有些不自然，尤其是在皮肤纹理和毛孔的表现上，略显僵硬。不过眼神的情感表达还是可以的。
recraft v3：整体来看皮肤细节比较真实，五官也没有扭曲的情况，但人物眼神的情感表达上感觉还有欠缺，没有表达出提示词中“悲伤和沉思”的感觉。
Ideogram v2：这张照片的眼神情感表达是四个模型中最好的，但是皮肤的细节处理不够精细，毛孔、皱纹等特征表现得不够真实，显得有些粗糙。
Luma Photon：Luma Photon生成的效果人物的眼神表达和皮肤纹理细节看起来都还可以，但是背景模糊处理没有过渡好，人物脸部与背景衔接的部分很明显也被虚化了，导致没有突出人物主体。
实测二：文字生成
提示词：A logo with the text “Take a Tour of Gilgit Baltistan”. The text is written in a modern, bold font. There is a mountain range with peaks covered in snow. The mountains are in the background. The mountain range is surrounded by a blue circle. The overall logo has a blue background
参考中文翻译：一个写着“游览吉尔吉特-巴尔蒂斯坦”的标志。文字用现代粗体写的。有一座山峰被雪覆盖着的山脉。背景是山脉。山脉被一个蓝色的圆圈包围着。整个标志有一个蓝色的背景
Midjourney v6.1：首先MJ生成的整体画面非常美观，但是MJ还是老问题，文字生成不够准确，比如重复出现了字母“a”。
recraft v3：recraft生成的效果一般，比较粗糙，但是文字生成准确性是没有问题的。
Ideogram v2：Ideogram生成的效果是最好的，文字生成准确，且色彩、图案和文字排版上都做得非常出色。
Luma Photon：Luma Photon生成的效果并不理想，整体色彩搭配还算可以，但是文字生成不准确，而且文字非常扭曲。
实测三：风格创意
提示词：漫画风格，在城市的摩天大楼天空中，一个热气球正在漂浮，形状像一个巨大的抹茶可颂，下面的篮子里站着一只白色萨摩耶。
Midjourney v6.1：漫画风生成没有问题，虽然画面效果还不错，但是生成的热气球没有实现抹茶可颂的形状，且萨摩耶也没有在指定位置；
recraft v3：recraft选择了Illustration Design风格生成，但出现的问题和MJ差不多，效果未能遵循提示词，比如萨摩耶没有站在篮子里。
Ideogram v2：漫画风格生成没有问题，热气球也实现了抹茶可颂形状，整体是不错的。
Luma Photon：Luma Photon的漫画风生成效果，虽然抹茶可颂的热气球形状实现了，但这个色彩搭配，让人看了“两眼一黑”。
> 总结
通过以上实测，可以初步得出以下结论：
人物生成方面：在人物生成方面，Luma Photon生成的人物皮肤以及五官方面都没有明显不足，但在背景虚化处理上不够自然，这点有待改进。
文字生成方面：在文字生成测试中，Luma Photon是未能达到理想效果，文字扭曲的问题影响了整体表现。
风格创意方面：风格创意方面，Luma Photon虽然成功地呈现了抹茶可颂的热气球形状，但画面整体色彩搭配比较一般。
其实通过实测发现，Luma Photon在写实风格中的表现相对其他风格来说会更好，而在文字生成准确性上的确明显存在不足。此外，官方表示Luma Photon后续还会上线角色一致性的功能，据了解这功能只需一张输入图像即可创建一致的角色，并通过简单的指令将它们放置在任何场景中，我们可以一起期待看看！
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