5000+ 件無料プロンプト5000+ 件無料プロンプト4600+ 件無料プロンプト3900+ 件無料プロンプト3900+ 件無料プロンプト3900+ 件無料プロンプト4200+ 件無料プロンプト4200+ 件無料プロンプト4100+ 件無料プロンプト4100+ 件無料プロンプト4100+ 件無料プロンプト4100+ 件無料プロンプト4000+ 件無料プロンプト3500+ 件無料プロンプト14 Official AI Models Free to Use Updated 2026

最高の無料 AI 画像生成ツール
全主要モデル網羅

Nano Banana 2、GPT Image-2、Midjourney、Flux、Imagen 4、Seedream など、すべての主要な公式 AI 画像生成モデルを比較・試用。正直なレビュー、徹底比較、無料版テスト済み。

無料 AI プロンプト

5000+ 件の厳選 AI 画像プロンプト

参考画像付きのプロンプト集 — 全て無料、多言語対応、最新の画像モデルで利用可能。

ライブラリを閲覧

画像をタップしてプロンプト詳細を開く

Brand Product Surrounded by Elegant Water SwirlsFacetimeSmall Spring with Cherry Blossoms - Hero StyleA Signature Dreamy Fairy Editorial Portrait with Floral SettingAirbnb Style IconsPremium Recipe Poster TemplateWoman on Sports Car with McDonald's and Roses - Modern StylePromptPromptPrompt 411Premium 3D Rendered Collectible Vinyl Figure: A Editorial TakeContemplation Amidst ClamorModern Zen Brand VI Generation System: A Studio-Grade TakeCreate picture by location and timeHyper-realistic Abstract Oil Paint Portrait of Young Man: A Crafted TakeSurreal Skincare Ad: Giant Vitamin C Serum BottleLINE sticker sheet of humorous internet-like stampsBanana-themed AIFocus Twitter graphic in Google style (Editorial)Luxury Resort Editorial with Beautiful Woman - Stylized StylePromptPromptPrompt 268A Refined Bugs Bunny Barber with Hare TonicNanobanna 16352020 Defining Moment EditorialFashion Editorial in Urban AlleywayCrafted Giant Props Studio PhotographyA Refined Macro Photograph of a Luxury WASI WatchThai IT career infographic promptGirl Playing with Doll, Cinematic, Nostalgic (Editorial)Nanobanna 1542PromptVintage American Style Figma Brand Vector Lettering (Signature)6-panel comic of my life last weekSmall Worlds Big Stories - Modern Style1980S ClaudePrompt 127Playful Night Selfie at Airport Parking Lot - Studio-Grade StyleWorld Baseball: South Korea vs. Dominican RepublicA Studio-Grade Cinematic Close-up of Shawarma on Open FlamePromptBrand identity system for Higgsfield AI: A Crafted TakeYou are a professional YouTube thumbnail designer for million-subscriber channelNanobanna 1448Brand Virtual Characters - Refined StyleBrand Design Guide Posters: A Studio-Grade TakeInception Vintage Movie TicketWatercolor Map of a Country with Administrative DivisionsPromptSurreal and Dreamlike IllustrationsDreamy Crystal Ball Portrait: A Modern TakePrompt 400Python Fibonacci code on glass whiteboard - Hero StyleLuxury Christmas Product PhotoshootHero Soft Cafe Portrait of Young WomanMoss-Textured Logo Icon on White Background: A Studio-Grade TakePromptAnimal-Inspired BrandsNanobanna 1659Beauty Close-up of Lips: A Crafted TakeLast convenience store in a post-apocalyptic wastelandFuturistic Vision 2026Modern Stylized Caricature with Classic Cars in European AlleyBrand Product Surrounded by Elegant Water SwirlsFacetimeSmall Spring with Cherry Blossoms - Hero StyleA Signature Dreamy Fairy Editorial Portrait with Floral SettingAirbnb Style IconsPremium Recipe Poster TemplateWoman on Sports Car with McDonald's and Roses - Modern StylePromptPromptPrompt 411Premium 3D Rendered Collectible Vinyl Figure: A Editorial TakeContemplation Amidst ClamorModern Zen Brand VI Generation System: A Studio-Grade TakeCreate picture by location and timeHyper-realistic Abstract Oil Paint Portrait of Young Man: A Crafted TakeSurreal Skincare Ad: Giant Vitamin C Serum BottleLINE sticker sheet of humorous internet-like stampsBanana-themed AIFocus Twitter graphic in Google style (Editorial)Luxury Resort Editorial with Beautiful Woman - Stylized StylePromptPromptPrompt 268A Refined Bugs Bunny Barber with Hare TonicNanobanna 16352020 Defining Moment EditorialFashion Editorial in Urban AlleywayCrafted Giant Props Studio PhotographyA Refined Macro Photograph of a Luxury WASI WatchThai IT career infographic promptGirl Playing with Doll, Cinematic, Nostalgic (Editorial)Nanobanna 1542PromptVintage American Style Figma Brand Vector Lettering (Signature)6-panel comic of my life last weekSmall Worlds Big Stories - Modern Style1980S ClaudePrompt 127Playful Night Selfie at Airport Parking Lot - Studio-Grade StyleWorld Baseball: South Korea vs. Dominican RepublicA Studio-Grade Cinematic Close-up of Shawarma on Open FlamePromptBrand identity system for Higgsfield AI: A Crafted TakeYou are a professional YouTube thumbnail designer for million-subscriber channelNanobanna 1448Brand Virtual Characters - Refined StyleBrand Design Guide Posters: A Studio-Grade TakeInception Vintage Movie TicketWatercolor Map of a Country with Administrative DivisionsPromptSurreal and Dreamlike IllustrationsDreamy Crystal Ball Portrait: A Modern TakePrompt 400Python Fibonacci code on glass whiteboard - Hero StyleLuxury Christmas Product PhotoshootHero Soft Cafe Portrait of Young WomanMoss-Textured Logo Icon on White Background: A Studio-Grade TakePromptAnimal-Inspired BrandsNanobanna 1659Beauty Close-up of Lips: A Crafted TakeLast convenience store in a post-apocalyptic wastelandFuturistic Vision 2026Modern Stylized Caricature with Classic Cars in European Alley
Sabrina Carpenter Inspired Fashion Editorial: A Studio-Grade TakeA Modern Salted fish trying to flip in a panPortrait Prompt with Identity PreservationWoman Walking on Villa Terrace Overlooking OceanProfessional American ID Photo Portrait - Studio-Grade StylePromptPrompt 278Nanobanna 1696A Signature Police Photo StylePokemon/Yu-Gi-Oh style card from character image - Curated StyleManga Body Swap Band PanicMan with Mercedes G-Wagon in Cinematic Amber LightPrompt 408Mixed-Reality Comic Transformation - Crafted StyleNanobanna 1500Prompt 211A Editorial Late Night Kitchen Candid PortraitPrompt 362Prompt 184Research-Driven Ad Layout DesignerRetro Pixel UI Icons (Stylized)Figurine ZBrush Modeling Display and Bandai Style Packaging Box: A Modern TakeHyper-realistic Pepsi Can Splash AdvertisementDivine Beast Concept ArtFashion Film Portrait of a Young Woman: A Hero TakePromptStylized Raccoon Painter on Champs-Élysées2X2Prompt 112Clothing pieces laid out on asphaltHigh-quality face upscaling promptPrompt 216Street Style Photo with Chibi CharacterKylie Jenner in High-Fashion Street EditorialSurreal Minimalist High-End Print AdvertisementFloating Glassy Neon 3D3D Comic Portrait: A Hero TakeTimeless Cheese Still Life (Premium)Minimalist Song Typeface Traditional Chinese Culture Aesthetic Guide: A Crafted 3D Illusion Billboard & Cinema Screen Advertisements - Refined StyleA Editorial Casual Portrait of a Young Woman with TattoosPPTCareer Journey Map VisualizationPrompt 3302D Floor Plan to 3D Real Estate Render: A Studio-Grade TakeHero Editorial Fitness Photography in Luxury GymPrompt 200Airbnb Style IconsSabrina Carpenter in Otaku Bedroom with Neon LightsGenerate landmark-focused cityscape from coordinatesTurn Your Logo into a MascotVideo ad prompt for an artisan bakeryLuxury Campaign Photograph of Woman in Metro with HeadphonesThe Truth of the Sanctuary MangaStylized Skateboard Character in Urban Style: A Hero TakePrompt 419Curated Luxurious Poolside Fashion Editorial1996 VHS High School Camcorder ShotPromptHigh-end Yogurt Product Photography with Milk Splash (Premium)Artist Painting Miniature of SelfPrompt 175Luxury Skincare Ad: Pineapple & Glowing Skin (Stylized)Sabrina Carpenter Inspired Fashion Editorial: A Studio-Grade TakeA Modern Salted fish trying to flip in a panPortrait Prompt with Identity PreservationWoman Walking on Villa Terrace Overlooking OceanProfessional American ID Photo Portrait - Studio-Grade StylePromptPrompt 278Nanobanna 1696A Signature Police Photo StylePokemon/Yu-Gi-Oh style card from character image - Curated StyleManga Body Swap Band PanicMan with Mercedes G-Wagon in Cinematic Amber LightPrompt 408Mixed-Reality Comic Transformation - Crafted StyleNanobanna 1500Prompt 211A Editorial Late Night Kitchen Candid PortraitPrompt 362Prompt 184Research-Driven Ad Layout DesignerRetro Pixel UI Icons (Stylized)Figurine ZBrush Modeling Display and Bandai Style Packaging Box: A Modern TakeHyper-realistic Pepsi Can Splash AdvertisementDivine Beast Concept ArtFashion Film Portrait of a Young Woman: A Hero TakePromptStylized Raccoon Painter on Champs-Élysées2X2Prompt 112Clothing pieces laid out on asphaltHigh-quality face upscaling promptPrompt 216Street Style Photo with Chibi CharacterKylie Jenner in High-Fashion Street EditorialSurreal Minimalist High-End Print AdvertisementFloating Glassy Neon 3D3D Comic Portrait: A Hero TakeTimeless Cheese Still Life (Premium)Minimalist Song Typeface Traditional Chinese Culture Aesthetic Guide: A Crafted 3D Illusion Billboard & Cinema Screen Advertisements - Refined StyleA Editorial Casual Portrait of a Young Woman with TattoosPPTCareer Journey Map VisualizationPrompt 3302D Floor Plan to 3D Real Estate Render: A Studio-Grade TakeHero Editorial Fitness Photography in Luxury GymPrompt 200Airbnb Style IconsSabrina Carpenter in Otaku Bedroom with Neon LightsGenerate landmark-focused cityscape from coordinatesTurn Your Logo into a MascotVideo ad prompt for an artisan bakeryLuxury Campaign Photograph of Woman in Metro with HeadphonesThe Truth of the Sanctuary MangaStylized Skateboard Character in Urban Style: A Hero TakePrompt 419Curated Luxurious Poolside Fashion Editorial1996 VHS High School Camcorder ShotPromptHigh-end Yogurt Product Photography with Milk Splash (Premium)Artist Painting Miniature of SelfPrompt 175Luxury Skincare Ad: Pineapple & Glowing Skin (Stylized)
Final Fantasy Party vs. Water Chaos KrakenGentle Invitation in the Elevator Mirror: A Signature TakeBaroque Lolita Rock-Paper-Scissors Tournament - Editorial StyleA Editorial 3D Product Box Dieline VisualizationPromptCalming Green Tea Film KitWildcampA Editorial Pastel Anime Character SketchBrand Product Digital AdsThe Black Pearl In A BottleSurreal Bird FantasyMS Paint Drawing PromptProduct ManualChristmas Tree of Stacked Branded Product Boxes Fashion Illustration (Studio-GraMinimalist Product Photo with Doodle Overlay: A Curated TakeCurated Messi Shadow PortraitNanobanna 1651A Hero High End Takeout Packaging Design ProposalPromptA Stylized 80s US import TV anime style promptCozy Tokyo Apartment With Multiple Identical Characters - Curated StylePrompt 399Luxury Bridal Jewelry Campaign Poster - Crafted StyleChange the living room floor to look like a desert, covered in sand, with only tGenerate an image in the style of a moodboard: A Studio-Grade TakeSee Through EverythingNanobanna 1442Clothing laid out on bed promptA Modern 90S Floppy Disk X AccountRosé (Blackpink) in Gold Latex Dress on Shopping Street - Premium StyleA Hero Cinematic Double Exposure Portrait of Actress in CitySci-Fi Novel Material Sculpture QuartetFull Armor Mecha Girl Belthiera 1/7 Scale FigureDramatic Spotlight Product ShotPrompt 115Four Young Women Taking a Group Selfie Outdoors (Refined)Blonde Girl in Electric Pink Latex Outfit, Neon Green Tiles: A Crafted TakeEric Carle Style NYC Four Seasons Infographic (Editorial)Infographic about real estate investing promptSoft Color Embroidery: Handmade Beauty from AboveUltra-Wide Realistic Dynamic PortraitsPrompt 149PromptGothic Elf Maid LivestreamOut the Window meme comic promptCinematic Football Commercial StoryboardPromptPrompt3D Miniature Company Stock SceneA Refined Premium Industrial Design Concept on White BackgroundPrompt 363A Refined Black and White Seashore Portrait of a ManPromptHyper-realistic Fashion Shoot with 3D Cartoon Characters - Refined StylePromptProud Black and White Portrait Close-up: A Modern TakeEinstein teaching at MIT with Hindi text on chalkboardVTuber and Street-Style LogosPrompt 273Brands That Unlock Childhood MemoriesPromptA Refined Sadie Sink Digital Twin in High-Fashion PosePrompt 72Dark Gothic Tarot Card Ai Artist Shira - Modern StyleFinal Fantasy Party vs. Water Chaos KrakenGentle Invitation in the Elevator Mirror: A Signature TakeBaroque Lolita Rock-Paper-Scissors Tournament - Editorial StyleA Editorial 3D Product Box Dieline VisualizationPromptCalming Green Tea Film KitWildcampA Editorial Pastel Anime Character SketchBrand Product Digital AdsThe Black Pearl In A BottleSurreal Bird FantasyMS Paint Drawing PromptProduct ManualChristmas Tree of Stacked Branded Product Boxes Fashion Illustration (Studio-GraMinimalist Product Photo with Doodle Overlay: A Curated TakeCurated Messi Shadow PortraitNanobanna 1651A Hero High End Takeout Packaging Design ProposalPromptA Stylized 80s US import TV anime style promptCozy Tokyo Apartment With Multiple Identical Characters - Curated StylePrompt 399Luxury Bridal Jewelry Campaign Poster - Crafted StyleChange the living room floor to look like a desert, covered in sand, with only tGenerate an image in the style of a moodboard: A Studio-Grade TakeSee Through EverythingNanobanna 1442Clothing laid out on bed promptA Modern 90S Floppy Disk X AccountRosé (Blackpink) in Gold Latex Dress on Shopping Street - Premium StyleA Hero Cinematic Double Exposure Portrait of Actress in CitySci-Fi Novel Material Sculpture QuartetFull Armor Mecha Girl Belthiera 1/7 Scale FigureDramatic Spotlight Product ShotPrompt 115Four Young Women Taking a Group Selfie Outdoors (Refined)Blonde Girl in Electric Pink Latex Outfit, Neon Green Tiles: A Crafted TakeEric Carle Style NYC Four Seasons Infographic (Editorial)Infographic about real estate investing promptSoft Color Embroidery: Handmade Beauty from AboveUltra-Wide Realistic Dynamic PortraitsPrompt 149PromptGothic Elf Maid LivestreamOut the Window meme comic promptCinematic Football Commercial StoryboardPromptPrompt3D Miniature Company Stock SceneA Refined Premium Industrial Design Concept on White BackgroundPrompt 363A Refined Black and White Seashore Portrait of a ManPromptHyper-realistic Fashion Shoot with 3D Cartoon Characters - Refined StylePromptProud Black and White Portrait Close-up: A Modern TakeEinstein teaching at MIT with Hindi text on chalkboardVTuber and Street-Style LogosPrompt 273Brands That Unlock Childhood MemoriesPromptA Refined Sadie Sink Digital Twin in High-Fashion PosePrompt 72Dark Gothic Tarot Card Ai Artist Shira - Modern Style

海外の AI 画像モデル

OpenAI、Google、xAI、Black Forest Labs、Stability AI などの最高の AI 画像生成ツール。

Most Popular

Nano Banana 2

最高峰のAI画像編集モデル

Nano Banana 2はGoogleが開発した最先端のAI画像編集モデルで、優れたプロンプト理解、一貫したキャラクター編集、シーン保持能力を備えています。自然言語で任意の画像を編集可能 — 新規ユーザーには20クレジット無料。...

20 Free CreditsImage Editing4K OutputNo Sign-Up
Nano Banana 2 を無料で試す →
Pro Tier

Nano Banana Pro

4K超高画質AI画像エディター

Nano Banana ProはGoogleのGemini 3 Pro Imageモデルを搭載したNano Banana 2のプロ版。4K超高解像度、14枚の参照画像、8倍高速の優先処理、卓越したキャラクター一貫性を実現します。...

4K Ultra14 References8x FasterPro Quality
Nano Banana Pro を無料で試す →
OpenAI Latest

GPT Image-2

OpenAI最先端の画像モデル

GPT Image-2はChatGPTに統合されたOpenAIの最新画像生成モデル。比類なき自然言語理解と向上した写実性により、AI画像制作を誰でも使えるものに。無料ユーザーも日次生成が可能。...

Free in ChatGPTBest Text RenderingMulti-turn EditsNatural Language
GPT Image-2 を無料で試す →
#1 Quality

Midjourney v7

世界最高峰のAIアートジェネレーター

Midjourney v7は世界で最も人気のあるAI画像ジェネレーター。すべての競合を凌駕する写実的画像と驚異的なアートスタイルを継続的に生み出します。AIアートのゴールドスタンダードを使う数百万のクリエイターに加わりましょう。...

v7 LatestPhotorealisticTrial AvailableTop Quality
Midjourney v7 を無料で試す →
Open Source King

Flux 2

最速のオープンソースAI画像ジェネレーター

Black Forest LabsによるFlux 2は最先端のオープンソースAI画像ジェネレーター。Flux Schnellは2秒以内に画像を生成し、Flux Proはアート品質でMidjourneyに匹敵。完全無料・オープンソース。...

Open SourceUnder 2 SecondsCommercial FreeSelf-Hostable
Flux 2 を無料で試す →
Google DeepMind

Imagen 4

Googleのフラッグシップ画像生成モデル

Imagen 4はGoogle DeepMindの旗艦画像生成モデルで、写実性とプロンプト精度に特化。Google AI Studioから無料利用可能で、業界トップの品質、精緻な細部、正確なテキストレンダリングを提供。...

Google AIFree in AI StudioPhotorealismAccurate Text
Imagen 4 を無料で試す →

中国の AI 画像モデル

字節跳動(ByteDance)、阿里巴巴(Alibaba)、快手(Kuaishou)など中国 AI 研究機関の最高画像生成ツール。

China SOTA

Seedream 4.5

ByteDanceの旗艦AI画像モデル

Seedream 4.5はByteDanceの旗艦AI画像生成モデルで、Volcengineと豆包(Doubao)を通じて利用可能。中国AI画像ベンチマークでリードし、優れた中国語テキストレンダリング、文化的理解、世界トップモデルに匹敵する品質を実現。...

China SOTAChinese Text MasteryVolcengineFree Tier
Seedream 4.5 を無料で試す →
Open Source

Qwen-Image

Alibabaのオープンソース画像モデル

Qwen-ImageはAlibabaのQwenシリーズによるオープンソースAI画像生成モデル。強力な中国語テキストレンダリング、マルチモーダル理解、寛容なライセンスにより、無料商用AI画像生成のトップ選択肢。...

Open SourceCommercial FreeChinese OptimizedAlibaba
Qwen-Image を無料で試す →
Kuaishou

Kling Image

Kuaishou AI画像ジェネレーター

Kling ImageはKuaishouのAI画像生成モデルで、動画生成で有名なKling AIスイートの一部。シネマティック品質の画像、強力なキャラクター一貫性、中国の文化的理解を備え、世界中で利用可能。...

KuaishouCinematic QualityFree TrialVideo Integration
Kling Image を無料で試す →

モデル徹底比較

同じプロンプトで実測比較。ユースケースごとに勝者を確認。

ユースケースから最適なAIを見つける

logo、アニメ、ポートレート、商品写真など定番のジョブ別ランキング。

無料プロンプトライブラリ

スタイル別に整理されたコピー&ペーストできるプロンプト。最適なモデルでテスト済み。

なぜ AI 画像生成ツールを使うのか?

Instant Generation

Create stunning images from text descriptions in seconds. No waiting for designers or stock photos.

🎨

Any Style, Any Subject

Photorealistic photos, oil paintings, anime, 3D renders, logos — every visual style imaginable.

💰

Completely Free

Every tool listed offers a free tier. Start creating without spending a dime.

🛠

Easy to Use

No technical skills required. Just type what you want and the AI handles the rest.

📈

Commercial Ready

Most tools allow commercial use. Perfect for marketing, social media, and business content.

🌐

Always Improving

AI image quality doubles every year. Today's free tools beat last year's premium options.

トップ 8 AI 画像生成ツール比較

Feature Nano Banana 2Nano Banana ProGPT Image-2Midjourney v7Flux 2Imagen 4Grok ImagineStable Diffusion 3.5
CompanyGoogleGoogleOpenAIMidjourneyBlack Forest LabsGoogle DeepMindxAIStability AI
Quality⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐
Free Tier20 credits free20 credits trialDaily limitLimited trialUnlimited self-hostFree in AI StudioX PremiumUnlimited self-host
Speed10-20s5-10s priority10-25s30-60sUnder 2s5-15s5-15s5-15s
Best ForImage EditingProfessional EditingBeginners & TextArtistic QualitySpeed + QualityPhotorealismCreative FreedomCustomization

よくある質問

What is the best free AI image generator in 2026?
It depends on your needs. Nano Banana is best for image editing, Midjourney v7 has the best artistic quality, GPT Image-2 is the easiest to use, Flux 2 is the fastest open-source option, and Imagen 4 leads in photorealism.
Which AI image model is officially from OpenAI?
GPT Image-2 is OpenAI's official image generation model, replacing DALL-E 3. It's built into ChatGPT and available free with limits.
What is Nano Banana AI?
Nano Banana is Google's AI image editing model powered by Gemini 2.5 Flash Image. The Pro version uses Gemini 3 Pro Image with 4K resolution.
Are Chinese AI image models like Seedream good?
Yes. Seedream 4.5 from ByteDance leads benchmarks for Chinese content. Qwen-Image is open source. Kling Image is great for cinematic + video workflows.
What is the best open-source AI image generator?
Flux 2 (Black Forest Labs), Stable Diffusion 3.5, HiDream-I1 and Qwen-Image are all top open-source options. Flux 2 leads in quality, SD 3.5 in ecosystem.

主要な AI 画像モデルをすべて網羅

14 の公式 AI 画像ジェネレーターを比較 — 毎月新しいモデルを追加。

今すぐ AI 画像作成を開始

ツールを選んで、1分以内に最初の画像を生成。完全無料、クレジットカード不要。