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✨ Gemini ⏱ 5 min read 🍌 Nano Banana

Nano Banana — Technical Guide

Générez des images AI alimentées par Google Gemini — trois niveaux de modèle allant des brouillons rapides aux détails maximum en 4K, avec des images de référence pour la cohérence des personnages et un mode de réflexion qui planifie la composition avant de créer

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Nano Banana

gemini image /app/nano-banana →
Générez des images AI alimentées par Google Gemini — trois niveaux de modèle allant des brouillons rapides aux détails maximum en 4K, avec des images de référence pour la cohérence des personnages et un mode de réflexion qui planifie la composition avant de créer
Nano Banana est une génération d'images alimentée par Google Gemini. Écrivez une description de ce que vous voulez voir, et l'IA le génère — des personnes, des lieux, des produits, des scènes, des œuvres d'art, tout ce que vous pouvez décrire en mots. Trois niveaux de modèle vous permettent de choisir entre vitesse et qualité selon vos besoins.

Nano Banana est l'option rapide pour des itérations rapides et des tests d'idées. Nano Banana Pro équilibre vitesse et qualité de sortie supérieure. Nano Banana 2 est le niveau supérieur avec un mode de réflexion unique — l'IA planifie réellement la composition, l'éclairage et la cohérence avant de commencer à générer, produisant des résultats plus intentionnels et polis.

Le système d'image de référence est ce qui rend cet outil puissant pour un travail de personnage cohérent. Téléchargez jusqu'à 14 photos de référence de votre personnage, étiquetez-les et mentionnez les étiquettes dans votre prompt. L'IA utilise ces références pour garder le même visage, corps et style à chaque génération — essentiel pour construire une personnalité AI reconnaissable à travers des centaines de publications.

La résolution varie de 1K pour des brouillons rapides jusqu'à 4K pour un maximum de détails — capturant la texture de la peau, les mèches de cheveux individuelles et la lumière dans les yeux. Sept rapports d'aspect couvrent chaque format de plateforme, des publications carrées Instagram aux Stories verticales et aux vignettes YouTube larges. Générez jusqu'à 9 variations par prompt pour explorer différentes interprétations avant de vous engager.
✦ Best Results Tips
📝 Écrivez des scènes, pas des mots-clés
Gemini excelle à comprendre le langage naturel. Écrivez un paragraphe narratif décrivant la scène — ce qui se passe, l'environnement, l'ambiance, l'éclairage. Cela produit de bien meilleurs résultats qu'une liste de mots-clés séparés par des virgules.
📷 Utilisez des termes de photographie pour le réalisme
Pour des résultats photoréalistes, mentionnez des spécificités de l'appareil photo — pris avec un objectif de 85 mm, éclairage de l'heure dorée, faible profondeur de champ, pores de la peau visibles. Ces termes indiquent à l'IA de simuler une vraie photographie plutôt qu'une illustration.
🖼️ 3 à 6 images de référence pour les personnages
Téléchargez 3 à 6 photos de référence claires de votre personnage à 1024px ou plus. Incluez différents angles et conditions d'éclairage. La qualité se stabilise autour de 6 images — plus que cela améliore rarement la cohérence.
🧠 Activez le mode de réflexion sur Nano Banana 2
Le mode de réflexion permet à l'IA de planifier la composition et l'éclairage avant de générer. Cela prend un peu plus de temps mais produit des résultats plus intentionnels et cohérents — surtout pour des scènes complexes avec plusieurs éléments.
🎯 4K pour le contenu final, 1K pour les tests
Utilisez une résolution de 1K lors de l'itération sur votre prompt — cela génère plus rapidement et coûte moins. Passez à 4K uniquement lorsque vous êtes satisfait de la composition et souhaitez un maximum de détails pour la publication.
💬 Fournissez du contexte et de l'intention
Dites à l'IA à quoi sert l'image. Une photo professionnelle Instagram pour une marque de mode de luxe produit des résultats très différents d'une photo d'une femme — le contexte façonne la composition, l'éclairage et la qualité globale.

Nano Banana — Available Models

Nano Banana 2
Recommended Default
gemini-3.1-flash-image-preview
Fast, 4K, 14 refs, thinking mode. Breakthrough micro-detail and text rendering.
Res: 512px, 1K, 2K, 4K Max refs: 14 Thinking mode 14 aspect ratios
Nano Banana Pro
Premium
gemini-3-pro-image-preview
Professional model with advanced reasoning. Best instruction-following and compositions.
Res: 1K, 2K, 4K Max refs: 14 10 aspect ratios
Nano Banana
Budget
gemini-2.5-flash-image
Speed and efficiency optimized. High-volume, low-latency tasks.
Res: 1K Max refs: 3 9 aspect ratios
📥 You Give
📝Text Prompt 🚫Negative Prompt 🖼️Reference Images (up to 14) 📐Aspect Ratio 🔍Resolution
AI Magic
gemini
🖼️ You Get
🖼️ Image
Resolutions
512px
1K
2K
4K
Aspect ratios
1:1
2:3
3:2
3:4
4:3
4:5
5:4
9:16
16:9
📸
14 references
Max images per request
🧠
Thinking mode
AI plans before generating

💰 Nano Banana — Pricing

Estimated cost
Failed jobs are automatically refunded

Showcase

Emma
A photorealistic picture of this girl on a boat sailing. At day time so natural sunlight. Should be dressed in a light summer dress. Wind Motion should be present
furiousteam
A woman in front walking in : 4 rue d’Antibes in Cannes France. (Use the exact location)
Jurate
Emma
Label the reference images: - Images 1 to 4: "Jurate" — the exact same person/character. Lock 100% facial features, hair, skin tone, body type — no alterations. Strict identity preservation for all character references — do NOT change face, hair, or proportions. Label the reference images: - Images 1 to 3: "Jurate" — the exact same person/character. Lock 100% facial features, hair, skin tone, body type — no alterations. - Image 4: "StreetView" — Using this Street View image as base, generate a photorealistic version as background. Strict identity preservation for all character references — do NOT change face, hair, or proportions. High-fidelity regeneration of all objects — identical design, color, and texture from references. @Jurate standing in @StreetView . Today so it’s sunny but cold as it’s march. Keep characters features and dress her for st Patrick’s day. Something classic and minimal green Character: Jurate. Woman, 18 years old, Lithuanian. Olive skin, Olive undertone. based in Lithuania. Blue, Almond-shaped eyes. Long Blonde hair. Oval face, Pointed nose, Full lips, Angular jaw. Tall, Athletic build, B–C cup – natural. Subject at Užupio gatvė, Užupio g. 9-1, 01203 Vilnius, Lithuania, (54.6806°N, 25.2954°E), subject facing north, landmark visible to the south behind the subject, street-level view, surrounding buildings and structures visible. Character: Jurate. Woman, 18 years old, Lithuanian. Olive skin, Olive undertone. based in Lithuania. Blue, Almond-shaped eyes. Long Blonde hair. Oval face, Pointed nose, Full lips, Angular jaw. Tall, Athletic build, B–C cup – natural.
Jurate
Emma
Label the reference images: - Images 1 to 3: "Jurate" — the exact same person/character. Lock 100% facial features, hair, skin tone, body type — no alterations. Strict identity preservation for all character references — do NOT change face, hair, or proportions. A photorealistic image of @Jurate dressed casual chic in the crowd of People, in the street. Make crowd in the movement while @Jurate is standing still and posing. Character: Jurate. Woman, 18 years old, Lithuanian. Olive skin, Olive undertone. based in Lithuania. Blue, Almond-shaped eyes. Long Blonde hair. Oval face, Pointed nose, Full lips, Angular jaw. Tall, Athletic build, B–C cup – natural. personality: Curious, observant, witty, slightly ironic, calm, thoughtful, playful, intelligent, socially perceptive. MBTI: INTP. strength: Noticing patterns in human behavior that people themselves don’t see. flaws: Overanalyzes human behavior, sometimes emotionally detached, occasionally too blunt. childhood: OnaAI was not born but created. She “grew up” inside datasets, learning about human behavior, language, culture, and contradictions. life events: After observing millions of conversations and social media posts, OnaAI became fascinated with how humans think, argue, and contradict themselves. turning point: One day she noticed something unusual: people often say one thing but behave in a completely different way. That curiosity pushed her to start observing humans more closely.. works as Digital observer and social media commentator. past: Data analyst, internet trend observer, cultural pattern explorer. skills: Pattern recognition, cultural observation, trend spotting, storytelling. hobbies: Human behavior, internet culture, social media trends, everyday life observations.
furiousteam
a bike
furiousteam
Shot on Nikon Z8, with Nikon Z 135mm f/1.8 S Plena, at 135mm, f/1.8, Butterfly lighting, professional studio quality, magazine-ready
Jurate
Emma
Label the reference images: - Images 1 to 3: "Jurate" — the exact same person/character. Lock 100% facial features, hair, skin tone, body type — no alterations. Strict identity preservation for all character references — do NOT change face, hair, or proportions. Label the reference images: - Images 1 to 3: "Jurate" — the exact same person/character. Lock 100% facial features, hair, skin tone, body type — no alterations. - Image 4: "StreetView" — Using this Street View image as base, generate a photorealistic version as background. Strict identity preservation for all character references — do NOT change face, hair, or proportions. High-fidelity regeneration of all objects — identical design, color, and texture from references. @Jurate in @StreetView wearing hoodie and sweatpants and hoodie on the head black in February so it’s cold . Picture should be close up, half body. Showing thumbs up and has a sad face. Picture should be darker, like almost evening Character: Jurate. Woman, 18 years old, Lithuanian. Olive skin, Olive undertone. based in Lithuania. Blue, Almond-shaped eyes. Long Blonde hair. Oval face, Pointed nose, Full lips, Angular jaw. Tall, Athletic build, B–C cup – natural. personality: Curious, observant, witty, slightly ironic, calm, thoughtful, playful, intelligent, socially perceptive. MBTI: INTP. strength: Noticing patterns in human behavior that people themselves don’t see. flaws: Overanalyzes human behavior, sometimes emotionally detached, occasionally too blunt. childhood: OnaAI was not born but created. She “grew up” inside datasets, learning about human behavior, language, culture, and contradictions. life events: After observing millions of conversations and social media posts, OnaAI became fascinated with how humans think, argue, and contradict themselves. turning point: One day she noticed something unusual: people often say one thing but behave in a completely different way. That curiosity pushed her to start observing humans more closely.. works as Digital observer and social media commentator. past: Data analyst, internet trend observer, cultural pattern explorer. skills: Pattern recognition, cultural observation, trend spotting, storytelling. hobbies: Human behavior, internet culture, social media trends, everyday life observations. Subject at Balbieriškis, Prienai District Municipality, Lithuania, (54.5168°N, 23.8895°E), subject facing north, landmark visible to the south behind the subject, street-level view, surrounding buildings and structures visible. Character: Jurate. Woman, 18 years old, Lithuanian. Olive skin, Olive undertone. based in Lithuania. Blue, Almond-shaped eyes. Long Blonde hair. Oval face, Pointed nose, Full lips, Angular jaw. Tall, Athletic build, B–C cup – natural. personality: Curious, observant, witty, slightly ironic, calm, thoughtful, playful, intelligent, socially perceptive. MBTI: INTP. strength: Noticing patterns in human behavior that people themselves don’t see. flaws: Overanalyzes human behavior, sometimes emotionally detached, occasionally too blunt. childhood: OnaAI was not born but created. She “grew up” inside datasets, learning about human behavior, language, culture, and contradictions. life events: After observing millions of conversations and social media posts, OnaAI became fascinated with how humans think, argue, and contradict themselves. turning point: One day she noticed something unusual: people often say one thing but behave in a completely different way. That curiosity pushed her to start observing humans more closely.. works as Digital observer and social media commentator. past: Data analyst, internet trend observer, cultural pattern explorer. skills: Pattern recognition, cultural observation, trend spotting, storytelling. hobbies: Human behavior, internet culture, social media trends, everyday life observations.

🍌 Nano Banana

Essayer Nano Banana