2026年9月10日

Google Launches “Gemini 2.5 Flash Image”: Ushering in a New Era of AI Photo Editing

Remember the mysterious AI image editing model nicknamed “nano-banana” that caught attention during ...

Remember the mysterious AI image editing model nicknamed “nano-banana” that caught attention during the LMArena tests? It has finally been revealed—Google has officially launched Gemini 2.5 Flash Image, a cutting-edge AI model for both image generation and editing.

Solving the Long-Standing “Consistency” Problem

One of the biggest frustrations with older AI tools was the inability to maintain character consistency—where the same character looked completely different across scenes. Gemini 2.5 Flash Image solves this problem.
It can naturally place the same character in multiple environments or show a product from different angles, all while maintaining a consistent look.
For brand asset creation, product catalogs, and storytelling, this is a game changer.

Google even provides ready-made templates, such as turning one portrait into retro photos from different decades.

Edit with Just One Sentence

Another major highlight is natural language editing.
Users can simply type a sentence to perform professional-level edits, such as:

  • Blurring the background
  • Removing stains from clothes
  • Erasing a person from a group photo
  • Adding color to a black-and-white photo
  • Changing a person’s pose

No Photoshop skills required, but with professional-grade results.

Smarter AI: Real-World Semantic Understanding

Gemini 2.5 Flash Image doesn’t just “draw pictures”; it understands the world.
It can interpret rough sketches, understand textual instructions, and execute multi-step edits in one go.
Google showcased an interactive learning app, where users draw simple diagrams and the AI acts like an intelligent tutor, explaining concepts based on real-world knowledge.

Multi-Image Fusion: Seamless Collage Made Easy

The new version also introduces image fusion.
Objects can be dragged into a new scene, producing a photo-realistic blend with zero awkwardness.
For example, inserting a product into various backgrounds or applying one image’s style onto another.

Low Cost + Built-in Watermark

Gemini 2.5 Flash Image is now available via Gemini App, API, Google AI Studio, and Vertex AI.
Pricing: $30 per million output tokens, with each image costing around 1,290 tokens (~$0.039, less than 3 cents in USD).
All outputs include SynthID invisible watermarking, ensuring authenticity and traceability.

Conclusion: From “Toy” to Productivity Tool

This release marks a turning point for AI image technology.
Gemini 2.5 Flash Image not only addresses long-standing pain points (consistency, editing complexity) but also unlocks fresh creative opportunities (fusion, semantic understanding).

Soon, we may see an explosion of new applications built on this model—ranging from brand design to education, entertainment, and personal creativity.

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