クイックスタート
This guide covers every Leonardo AI feature:
- はじめる — アカウント作成と基本設定
- How to Use Image Generation — Turn a plain text prompt into four high quality visuals in seconds
- AI Canvasの使い方 — Edit any image on an infinite canvas editor without leaving the platform
- How to Use 3D Texture Generation — Wrap your own 3D models in textures made from a simple description
- How to Use Custom Models — Train a private model on your own artwork for a repeatable Leonardo style
- 強力なAPIの使い方 — Plug image and video generation directly into your own app or website
- How to Use Realtime Canvas — Sketch rough shapes and watch the picture form as you draw
- How to Use Universal Upscaler — Raise any image to print resolution while adding sharper detail
- How to Use AI-Powered Video Generation — Turn any still image into short motion clips with simple speed control
- How to Use Community and Collaboration — Explore the community feed for prompt ideas and reusable settings
所要時間： 各作品につき5分
このガイドには以下の内容も含まれています。 プロのヒント | よくある間違い | トラブルシューティング | 価格 | 代替案
このガイドを信頼する理由
I have used Leonardo AI for two years and tested every feature covered here. This tutorial comes from real hands-on experience, not marketing fluff or vendor screenshots.
Leonardo AI is one of the most capable AIツール for image and video generation available today.
しかし、ほとんどのユーザーは、その機能のごく一部しか活用していない。
このガイドでは、主要な機能の使い方をすべて説明します。
スクリーンショットとプロのアドバイスを交えながら、手順を一つずつ解説します。
You start with the basics, then move to the settings that stretch your imagination.
Leonardo AI Tutorial
This complete How to Use Leonardo AI tutorial walks you through every feature step by step, from your first sign up to advanced features that turn you into a power user.
レオナルドAI
Turn a sentence into high quality visuals in seconds. Leonardo AI gives you image and video generation, a full canvas editor and dozens of models in one platform. Start free with daily tokens, no card required.
Getting Started with Leonardo AI
いずれかの機能を使用する前に、この初回設定を完了してください。
約3分かかります。
Here is my personal experience with the platform first:
それでは、各ステップを順を追って見ていきましょう。
ステップ1：アカウントを作成する
Go to the Leonardo AI website and click Sign Up.
メールアドレスを入力し、パスワードを作成してください。
✓ チェックポイント: チェックしてください 受信トレイ 確認メールをお送りします。
ステップ2：アプリにアクセスする
Leonardo AI runs in any browser on a computer, phone or tablet.
There is nothing to install. Log in and the dashboard loads.
Free users see their daily token balance in the top corner.
✓ チェックポイント: メインダッシュボードが表示されるはずです。
ステップ3：初期設定を完了する
Pick your main use case when the onboarding screen asks.
Then open the community feed and explore a few prompts.
The help center hosts tutorials for every tool on the dashboard.
✅ 完了: これで、以下のすべての機能をご利用いただけます。
How to Use Leonardo AI Image Generation
画像生成 lets you turn a plain 文章 prompt into four high quality visuals in seconds.
Type a description and watch the platform generate images from your words.
以下に、その使用方法をステップごとに説明します。
ステップ1：イメージ生成を開く
Sign in, then click the Image button in the left menu.
Pick your generation mode first. The dropdown lists every AI Leonardo model, with Leonardo Diffusion XL as the default.
ステップ2：プロンプトを作成する
Describe the picture you want in plain language.
これがその様子です。
✓ チェックポイント: Four images based on your prompt appear in the results grid.
ステップ3：生成をクリック
Hit the generate button and wait about twenty seconds.
Creating images this way costs a few tokens per batch.
✅ 結果: Your first image generated from a plain text description is ready.
💡 プロのヒント: Turn on raw mode for longer prompts. It reads complex wording far better.
How to Use Leonardo AI Canvas
人工知能 カンバs lets you edit any image on an infinite Canvas editor without leaving the platform.
The canvas editor lets you expand, erase and repaint parts of an image.
以下に、その使用方法をステップごとに説明します。
Step 1: Open Canvas Editor
Click Canvas Editor, then upload an image or start blank.
You can also send any generated image straight to the canvas.
Step 2: Mask and Prompt
Paint over the area you want changed, then add a short prompt.
これがその様子です。
✓ チェックポイント: The masked background blends with the rest of the picture.
Step 3: Generate and Accept
Click generate, then keep the version you like best.
✅ 結果: You edited an image without touching any traditional design software.
💡 プロのヒント: Add negative prompts here. They exclude unwanted elements from the repainted area.
How to Use Leonardo AI 3D Texture Generation
3D Texture Generation lets you wrap your own 3D models in textures made from a simple description.
Game artists use this to skin characters and props in minutes.
以下に、その使用方法をステップごとに説明します。
Step 1: Upload Your Model
Open 3D Texture Generation and upload an OBJ file.
Leonardo AI supports game development with character and environment generation.
Step 2: Describe the Surface
Write the material you want, such as rusted iron.
これがその様子です。
✓ チェックポイント: Your model shows the new surface from every camera angle.
ステップ3：プレビューとダウンロード
Rotate the preview, then download the texture maps.
✅ 結果: You textured a 3D asset without opening a painting program.
💡 プロのヒント: Use specific details to reduce color bleeding across separate mesh parts.
How to Use Leonardo AI Custom Models
カスタムモデル lets you train a private model on your own artwork for a repeatable Leonardo style.
Upload a dataset once and reuse that look across every future project.
以下に、その使用方法をステップごとに説明します。
Step 1: Build a Dataset
Upload twenty to forty images that share one look.
Consistency in the dataset matters more than the total count.
Step 2: Start Training
Name the model, pick a category, then click Train.
これがその様子です。
✓ チェックポイント: Your model appears in the Finetuned Models list on your account.
Step 3: Generate With It
Select your finished model inside the generation screen.
✅ 結果: You now own a model that repeats your visual style on demand.
💡 プロのヒント: Different models in Leonardo produce noticeably different results. Test yours against other models first.
How to Use Leonardo AI Powerful API
強力なAPI lets you plug image and video generation directly into your own app or website.
Developers call the API to create images inside their own products.
以下に、その使用方法をステップごとに説明します。
ステップ1：鍵を用意する
Open the API tab and generate a key.
Keep that key private and store it server side.
ステップ2：リクエストを送信する
Post your prompt and model ID to the generations endpoint.
これがその様子です。
✓ チェックポイント: Your terminal returns a job ID with no error message.
Step 3: Fetch the Result
Poll the job ID until the image URL returns.
✅ 結果: Your app can now generate images without any manual clicks.
💡 プロのヒント: API credits sit in a separate wallet from your web credits.
How to Use Leonardo AI Realtime Canvas
Realtime Canvas lets you sketch rough shapes and watch the picture form as you draw.
Realtime Canvas redraws your sketch live while your mouse is still moving.
以下に、その使用方法をステップごとに説明します。
Step 1: Open Realtime Canvas
Click Realtime Canvas from the left navigation menu.
This tool is one of the premium features on paid plans.
Step 2: Sketch and Describe
Draw rough blocks, then type a short description beside them.
✓ チェックポイント: The preview updates within a second of every brush stroke.
Step 3: Save Your Favourite
Click the save icon to send it to your gallery.
✅ 結果: You turned a rough doodle into finished digital art live.
💡 プロのヒント: Lower the creativity strength slider to keep your original sketch shapes.
How to Use Leonardo AI Universal Upscaler
Universal Upscaler lets you raise any image to print resolution while adding sharper detail.
Upscale images for higher resolution and clarity before you publish them.
以下に、その使用方法をステップごとに説明します。
ステップ1：画像を選択する
Open Universal Upscaler and choose a picture to enlarge.
You can also upload artwork made elsewhere on your computer.
Step 2: Set Strength
Pick an upscale style and raise detail strength to enhance fine texture.
✓ チェックポイント: The new file opens crisp at full size with no soft edges.
ステップ3：ダウンロード
Save the finished file at the larger resolution.
✅ 結果: Your visual content is ready for posters, thumbnails or product pages.
💡 プロのヒント: Upscale last. Editing after upscaling wastes credits and softens fine detail.
How to Use Leonardo AI-Powered Video Generation
AI-Powered Video Generation lets you turn any still image into short motion clips with simple speed control.
The video tools bring a still picture to life on the platform.
以下に、その使用方法をステップごとに説明します。
Step 1: Pick a Still
Open any image and click the Motion or video button.
Image and video generation share the same credit pool.
Step 2: Set Motion Strength
Choose motion strength and speed control, then create videos.
✓ チェックポイント: A short looping clip plays inside the preview window.
ステップ3：確認とエクスポート
Watch the clip, then download the MP4 file.
✅ 結果: You produced a moving asset for social content creation.
💡 プロのヒント: Low motion strength suits product shots. High strength suits skies and water.
How to Use Leonardo AI Community and Collaboration
Community and Collaboration lets you explore the community feed for prompt ideas and reusable settings.
Every public image shows the exact prompt and model behind it.
以下に、その使用方法をステップごとに説明します。
Step 1: Open the Feed
Click Community Feed to ブラウズ fresh work from other artists.
Sort by recent to see what people are testing right now.
Step 2: Copy Settings
Click any image, then press Remix to load its settings.
✓ チェックポイント: Your generation screen loads with the borrowed model and settings.
ステップ3：自分だけのものにしよう
Change the subject words and generate your own version.
✅ 結果: You learned a working prompt recipe without guessing from scratch.
💡 プロのヒント: Study prompts that use few filler words. Clean prompts give better quality.
Leonardo AI Pro Tips and Shortcuts
After testing Leonardo AI for two years, here are my best tips.
These are the settings I change on almost every project:
キーボードショートカット
| アクション | ショートカット |
|---|---|
| Generate images | Ctrl + Enter |
| Undo canvas edit | Ctrl + Z |
| Zoom the canvas editor | Ctrl + スクロール |
| Save current artwork | Ctrl + S |
ほとんどの人が見逃す隠れた機能
- Blueprints: Run multi-step tasks in one click. For example, swap a grey background for a sunset.
- Flow State: Feed one prompt and rapidly explore many visual ideas before you commit credits.
- Image guidance: Upload a reference picture so faces, elements and camera framing stay consistent.
- Prompt Magic: Improves adherence to your prompt when the model keeps ignoring small details.
Leonardo AI Common Mistakes to Avoid
Mistake #1: Ignoring the recommended aspect ratio
❌ 間違い: Forcing a square on every model, which crops faces and warps background elements.
✅ 右: Match the model. Dreamweaver 7 works best at 640 by 832. Experiment with aspect ratios for better results.
Mistake #2: Writing bloated prompts
❌ 間違い: Padding a description with filler words like beautiful, amazing and very detailed.
✅ 右: Remove filler words. Name the subject, style and lighting only. Prompt clarity drives output quality.
Mistake #3: Expecting a perfect first try
❌ 間違い: Deleting the whole prompt after one weak batch of images.
✅ 右: Change one word, generate again and keep what works. Iterative processes lead to better image creation.
Leonardo AI Troubleshooting
Problem: Out of tokens error
原因： Free users receive a limited number of daily tokens that reset each day.
修理： Wait for the daily refresh or move to paid plans. Paid users have a larger monthly token quota with rollover.
Problem: The picture ignores part of my prompt
原因： Long requests confuse the standard generation mode.
修理： Switch on raw mode. Using raw mode helps with longer and complex prompts. Add negative prompts to remove stray elements.
Problem: Colors bleed between objects
原因： The model cannot tell which color belongs to which object.
修理： Use specific details, such as red jacket and grey wall, instead of one long clause.
📌 注記： If none of these fix your issue, contact Leonardo AI support.
Leonardo AIとは何ですか？
レオナルドAI is a versatile visual generation platform that turns written ideas into finished pictures, textures and short videos.
Think of it like a studio of artists that never sleeps.
こちらの簡単な概要をご覧ください。
![Leonardo AI - 初心者向けチュートリアル（12分）！[完全ガイド 2025]](https://www.fahimai.com/wp-content/cache/flying-press/xbUE56kmVl0-hqdefault.jpg)
主な機能は以下のとおりです。
- 画像生成: Create images from a text prompt in four variations at once.
- AIキャンバス： An infinite canvas editor for erasing, expanding and repainting artwork.
- 3D Texture Generation: Texture your own 3D models straight from a written description.
- カスタムモデル: Train a private model that repeats your own creative style.
- 強力なAPI： Build image creation into your own app with a few calls.
- Realtime Canvas: Sketch and watch the picture update live on screen.
- ユニバーサルアップスケーラー： Push finished work to higher resolution for print and large screens.
- AI-Powered Video Generation: Animate any still into short clips with adjustable motion.
- Community and Collaboration: Explore public prompts and remix settings from other creators.
The platform suits solo creators, marketing teams and studios building game art.
Model switching is instant, allowing users to retest one prompt across several engines.
詳細なレビューについては、こちらをご覧ください。 Leonardo AI review.
Leonardo AIの価格
Here’s what Leonardo AI costs in 2026:
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | 月額0ドル | Trying image creation with daily tokens |
| 見習い | 月額10ドル | Hobby artists who want commercial rights |
| アーティザン・アンリミテッド | 月額24ドル | フリーランサー running steady client work |
| マエストロ アンリミテッド | 月額48ドル | Power users training many custom models |
| チーム向けレオナルド | カスタム価格設定 | Studios needing shared seats and billing |
無料トライアル: Yes. The free plan runs forever with daily tokens and no card.
返金保証: No standard refund window. Cancel any time before renewal.
💰 最もお得な価格: Artisan Unlimited — unlimited relaxed generations and full rights for less than a dollar a day.
レオナルドAIと代替案
How does Leonardo AI compare? Here’s the competitive landscape:
| 道具 | 最適な用途 | 価格 | 評価 |
|---|---|---|---|
| レオナルドAI | All round image and video generation | 月額10ドル | ⭐ 4.5 |
| 旅の途中 | 最高の芸術的品質 | 月額10ドル | ⭐ 4.7 |
| アドビ ファイアフライ | Commercially safe assets | 月額9.99ドル | ⭐ 4.3 |
| 安定拡散 | Full local control | 月額0ドル | ⭐ 4.2 |
| カンバ | Beginners and layouts | 月額15ドル | ⭐ 4.6 |
| チャットGPT | Writing plus visuals | 月額20ドル | ⭐ 4.6 |
| クレヨン | Free unlimited tests | 月額0ドル | ⭐ 3.8 |
| スターリーAI | Mobile first creators | 月額11.99ドル | ⭐ 4.0 |
おすすめ商品：
- 総合ベスト： Leonardo AI — models, canvas editor and video tools in one place.
- ベスト予算： Craiyon — free and unlimited, at lower resolution.
- 初心者におすすめ： Canva — image generation inside a familiar design editor.
- Best for game art: Leonardo AI — 3D texture generation and character sheets.
🎯 レオナルドAIの代替案
Leonardo AIの代替サービスをお探しですか？おすすめの選択肢をご紹介します。
- 🚀 デズゴ： Fast browser based ジェネレータ with no sign up wall for quick tests.
- 🌟 旅の途中: Best raw picture quality, though the Discord workflow feels dated to new users.
- 💰 クレヨン： Completely free and unlimited, with lower resolution and slower speed.
- 🎨 Adobe Firefly: Commercially safe training data and deep links into フォトショップ.
- 🔧 安定拡散: Run it on your own computer with full control over models.
- 👶 キャンバ: Easiest option for beginners who want images inside a design editor.
- ⚡ フォトル: Quick photo edits plus generation in one lightweight web app.
- 📊 ピクアート: Strong mobile app with templates for social content creation.
- 🧠 チャットGPT: Great when you want the same tool to write and 想像する ビジュアル。
- 💼 ジェミニ： Tight Google Workspace links for teams already inside that platform.
- 🎯 フェドラ: Niche generator aimed at stylised character artwork and portraits.
- ⭐ スターリーAI: Generous free tier and a simple mobile first interface.
全リストについては、こちらをご覧ください。 Leonardo AI alternatives ガイド。
⚔️ レオナルドAIとの比較
Leonardo AIが各競合他社と比べてどのような性能を発揮するのか、以下に示します。
- Leonardo AI vs デズゴ: Leonardo AI wins on advanced features and models. Dezgo wins on instant access with zero setup.
- レオナルドAI対ミッドジャーニー： Midjourney edges ahead on artistic polish. Leonardo AI offers a real canvas editor and free tier.
- レオナルドAI対クレイヨン： Craiyon is free forever. Leonardo AI produces far higher quality at usable resolution.
- Leonardo AI 対 Adobe Firefly: Firefly suits Adobe subscribers. Leonardo AI gives more models and better game asset tools.
- レオナルドAI対安定拡散： Stable Diffusion is free but needs a strong computer. Leonardo AI runs in any browser.
- Leonardo AI vs Canva: Canva is friendlier for layouts. Leonardo AI is stronger for detailed artwork and custom models.
- レオナルドAI対フォトール： Fotor focuses on photo fixes. Leonardo AI focuses on original image creation at scale.
- Leonardo AI vs Picsart: Picsart leads on mobile editing. Leonardo AI leads on model choice and prompt control.
- Leonardo AI vs ChatGPT: ChatGPT is simpler to prompt. Leonardo AI gives you generation mode settings and finetuned models.
- レオナルドAI対ジェミニ： Gemini fits Google workflows. Leonardo AI offers deeper control over style, elements and resolution.
- レオナルドAI対フェドラ： Phedra is narrow by design. Leonardo AI covers a wide array of styles and use cases.
- レオナルドAI対スターリーAI： StarryAI is easier for phone users. Leonardo AI is better for serious power users.
Start Using Leonardo AI Now
You learned how to use every major Leonardo AI feature:
- ✅ Image Generation
- ✅ AIキャンバス
- ✅ 3D Texture Generation
- ✅ Custom Models
- ✅ 強力なAPI
- ✅ Realtime Canvas
- ✅ Universal Upscaler
- ✅ AI-Powered Video Generation
- ✅ Community and Collaboration
次のステップ： どれか一つの機能を選んで、今すぐ試してみてください。
Most people start with Image Generation.
5分もかかりません。
よくある質問
What is Leonardo.Ai best used for?
It is best for digital art, marketing visuals, game assets and short motion clips. Artists also use it for concept work and quick visual ideas.
Is Leonardo.Ai really free?
Yes. Free users get daily tokens with no card needed. Paid plans start at $10 per month and add premium features plus token rollover.
Can I use Leonardo.Ai for commercial use?
Paid subscribers own full rights to their generated images. Free users grant Leonardo AI rights to use their images, so upgrade before selling work.
How to use Leonardo.Ai to generate images?
Open Image Generation, write a clear prompt, pick a model such as Leonardo Diffusion XL, then click generate. Four images arrive in seconds.
How does Leonardo.Ai work?
It reads your text description and builds a picture from it. Different fine tuned models interpret the same prompt in noticeably different ways.
English 
Spanish 
Chinese 
German 
French 
Arabic 
Russian 
Portuguese 
Japanese 
Korean 
Italian 
Turkish 
Dutch 
Polish 
Indonesian 
Thai 
Vietnamese 