Gemini 2.5 Flash Image: Best Way to Improve Image Quality?

Google AI Studio
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1

Dear Google AI Developers Community,

I am a creator using the Gemini 2.5 Flash Image technology for my 3D modeling work. While the speed and capabilities are a breakthrough, I’ve encountered a significant challenge with the output quality, specifically the low resolution and visible JPEG artifacts.

My goal is to responsibly use your service at a higher quality. I’m considering using an external AI upscaling tool like Real-ESRGAN, but this raises a critical concern: it may unintentionally damage the embedded SynthID and the visible watermarks.

I would greatly appreciate your guidance on the following questions:

  1. Is there an official roadmap or method to obtain higher-resolution outputs directly from the Gemini 2.5 Flash Image web app or API? I’m willing to use a paid tier if one is available.

  2. In the absence of an official upscaling option, how should I handle the risk of unintentionally damaging the SynthID watermark while using an external tool? Would such an action be considered a violation of Google’s Terms of Service?

  3. Given my need for higher-quality output, what is Google’s recommended solution for users in my situation who want to use your services responsibly?

Thank you for your time and for providing such a powerful tool. I look forward to your insights and guidance on this important matter.

3

Hello

To generate high-quality images, we recommend reviewing the following resources:

Additionally, to better understand SynthID’s terms of service, please refer to the Terms of Service.

5

That’s a really good question. I think Google might release better quality options soon since many creators face the same issue. For now, it’s safer to wait for an official update or paid tier rather than using third-party tools that could affect watermarks. In fields like 3D modelling services, maintaining image integrity and watermark safety is super important for professional use.