Nano Banana (Gemini 2.5 Flash Image)

aistudio.google.com

Nano Banana is Google's Gemini 2.5 Flash Image model, a conversational image generator and editor with character consistency, multi-image fusion, and invisible SynthID watermarking.

Overview

Nano Banana is the community codename for Gemini 2.5 Flash Image, Google’s state-of-the-art image generation and editing model released in August 2025. It quickly went viral for its conversational editing: you describe a change in plain language and the model applies it while keeping the subject’s identity intact across multiple turns. Its headline strengths are character consistency (faces, pets, and products stay recognizable between edits), multi-image fusion (blending several photos into one coherent scene), and world knowledge that helps it follow complex, real-world instructions. In LMArena’s image-editing benchmark it ranked first by a wide margin. The model is available through the Gemini app, Google AI Studio, the Gemini API, and Vertex AI, with additional access via partners like OpenRouter and fal.ai. Every output carries an invisible SynthID watermark for provenance, and the Gemini app adds a visible mark. For designers, marketers, and product teams, Nano Banana turns iterative photo and asset work into a fast, chat-driven loop.

Key Features

  • Maintain character and product consistency across edits and scene changes
  • Edit with natural-language prompts — no masks, layers, or manual selections
  • Fuse multiple images into a single coherent composition
  • Apply reference styles, textures, and color palettes from one image to another
  • Invisible SynthID watermarking on every generated or edited image

Pricing

PlanPriceFor
Free (AI Studio / Gemini)$0Light experimentation, daily quota
API$30 / 1M output tokensDevelopers, ~$0.039 per image
Vertex AICustom enterpriseBusinesses, scaled production

Comparison

Compared to Midjourney, Nano Banana wins on conversational, multi-turn editing and consistency rather than pure stylistic artistry. Versus DALL·E, it offers sharper prompt adherence and identity preservation. Like Flux, it is developer-friendly via API, but Nano Banana’s Google ecosystem (AI Studio, Vertex) makes enterprise integration smoother.

Compare alternatives

Side-by-side with the 3 closest alternatives.

ToolCategoryPricingVisit
Nano Banana (Gemini 2.5 Flash Image) (this) imageFree $0 · From $30/mo Site ↗
MidjourneyimageFrom $10/mo Site ↗
DALL·E 3imageFree $0 · From $20/mo Site ↗
FLUXimageFrom $0/mo Site ↗

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Editor’s Review
4.7/5
Pros
  • +Best-in-class character and product consistency across edits
  • +Conversational, prompt-based editing with no manual masking
  • +Available across Gemini app, AI Studio, API, and Vertex AI
Cons
  • Not designed for highly stylized or artistic rendering like Midjourney
  • Per-image API cost can add up at production scale
  • Limited control over fine-grained composition vs. dedicated editors

Nano Banana sets a new bar for interactive image editing and subject consistency. It is not a Midjourney replacement for stylized art, but for product, marketing, and iterative photo work it is currently best-in-class.

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