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A developer’s guide to Imagen 3 on Vertex AI


Over the past few months, early users put Imagen 3 on Vertex AI through its paces and shared valuable insights with us. It’s clear that users want an AI model that generates stunning visuals and empowers your practical creative applications. We’ve used their feedback to identify three common themes:

  • Demand for unparalleled quality across diverse artistic styles and formats

  • Desire for strong prompt adherence and fast image generation

  • Controls to protect and build trust with SynthID watermarking and advanced safety filters

Throughout this post, we will walk you through each of these concepts in depth. We will also provide some code examples and best prompt practices so you can get the most out of Imagen 3. 

Uncompromising quality and versatility

Imagen 3 sets a new standard in quality and control over your generated images. This text-to-image model produces photorealistic visuals with exceptional composition, sharpness, color accuracy, and resolution. With Imagen 3, you can explore a wider spectrum of artistic styles and formats. From photorealistic masterpieces to whimsical claymation scenes, the model’s expanded range of styles and formats provides the tools to express your unique artistic vision. 

To demonstrate these photorealistic capabilities, let’s walk through an example of creating image mockups for a new cookbook cover. Using the following prompt, the generated image has incredible detail, composition and photorealism.


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