Google’s “Nano Banana” AI Tool: How Gemini 2.5 Flash Image Transforms Photo Editing

Discover how Google’s viral Nano Banana lets users edit and generate hyper-realistic images with simple prompts—available for free in Gemini and in Spanish for Latino users.

Google’s new AI-powered tool has gone viral in recent days. Nano Banana has become the latest sensation for its ability to edit and generate photos using artificial intelligence directly through Gemini. It stands out for its ease of use and the high quality of results achieved.

Although its name is quite quirky and attention-grabbing, this tool corresponds to the Gemini 2.5 Flash Image model. What does it actually offer? Users can write simple prompts for Nano Banana to interpret and execute in seconds. Unlike other AI tools, it can maintain the same style or character across multiple edits, delivering more realistic and natural results

Nano Banana undoubtedly has a strong ability to interpret text prompts and understand context when applying them to an image. The more detailed the request, the higher the precision in the results. Additionally, the AI retains memory of previous edits, enabling repeated adjustments on the same image until the desired outcome is achieved

Furthermore, Nano Banana enables Photoshop-like enhancements: applying filters, changing colors of elements, removing people or objects, swapping elements, restoring old photos, zooming out, changing facial expressions, modifying looks, changing backgrounds, or merging multiple photographs—among other options

Nano Banana is available for free via the Gemini app on both mobile and web. Users simply upload a photo and type a prompt to get a hyper-realistic result. However, there are some limitations.

For developers and enterprises, Nano Banana is also offered as a paid service through Google AI Studio and Vertex AI: $30 per one million output tokens—which equates to approximately €0.039 per image generated

Key Strengths
Reviewers highlight its superiority over tools like ChatGPT’s image generator, particularly due to its:

1. Character consistency: It reproduces the same person or style across multiple edits faithfully.
2. Realism: Edits preserve likeness and avoid unnatural distortions.
3. Image-to-image fusion: It melds or inserts elements while preserving backgrounds realistically.
4. Speed: Outputs appear in ~10 seconds, far faster than ChatGPT-like tools.

Despite its power, there are concerns:

• It allows realistic insertion of celebrities or public figures into images, raising risks of deepfakes or misinformation.
• Edited images carry both visible watermarks and SynthID invisible digital watermarks to signal AI generation. However, invisible watermarks may be easily cropped or removed, and detection tools aren’t widely accessible yet.

Users have already created viral images, such as convincing AI-generated selfies with celebrities like Shah Rukh Khan or Brad Pitt—and recipients sometimes mistakenly believe they are real

Nano Banana (Gemini 2.5 Flash Image) is fully available and accessible in Spanish, as seen in multiple Spanish-language tech outlets and tutorials.

Whether it’s in Spanish or English, users can use natural-language prompts in their preferred language—Spanish prompts work seamlessly just as English ones do.