How to Use Jasper AI in 2026: Full Tutorial + Tips

Q: How much does Jasper AI cost per month?

The Pro plan costs $59 per month. The Business plan uses custom pricing based on your team size and features.

執筆者ファヒム・ジョハルダー | Last updated Oct 16, 2026

クイックスタート

This guide covers how to use Jasper AI, feature by feature:

はじめる — アカウント作成と基本設定
How to Use AI Image Suite — Generate and edit on-brand images for social posts and ads
How to Use Blog Post Generator — Turn a topic and keywords into a complete blog post draft
How to Use Brand Voice — Teach Jasper your tone so every output sounds like you
How to Use Jasper Chat — Brainstorm ideas and research topics in a chat window
How to Use Marketing Editor Blog Post — Write, edit, and polish long form content in one document editor

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

This tutorial is built on our full Jasper AI review and Jasper’s current feature set.

Every step maps to a real screen inside the platform, with no marketing fluff.

Jasper AI is one of the best-known ai copywriting tools for marketing teams.

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。

This guide walks through all the features that matter for daily content creation.

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。

Jasper AI Tutorial

This how to use Jasper AI tutorial takes you from first sign-up to power-user habits.

You don’t need prior knowledge of artificial intelligence to follow along.

By the end, you’ll create content faster with far less editing.

ジャスパーAI

Write marketing content that actually sounds like your brand. Jasper combines Brand 声, 50+ templates, and AI images in one place. Start with a 7-day free trial.

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レビュー全文を読む →

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Getting Started with Jasper 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。

まずはこちらの簡単なチュートリアルをご覧ください。

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 Jasper website and click “Start Free Trial.”

Add your card details to activate the free trial.

✓ 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

Jasper runs in your browser, so there’s nothing to download.

ダッシュボードの画面は以下のようになります。

✓ チェックポイント: You should see the home dashboard and left menu.

ステップ3：初期設定を完了する

Name your organization and pick your role in the onboarding flow.

Paste your website URL so Jasper can pull 早い brand context.

Invite your jasper team now if you work with other writers.

✅ 完了: これで、以下のすべての機能をご利用いただけます。

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How to Use Jasper AI Image Suite

AI Image Suite lets you generate and edit images without leaving Jasper.

It’s the modern version of what users once called Jasper Art.

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 Image Suite

Click “Image” in the left menu to open the suite.

Choose “Generate” to create a new image from scratch.

ステップ2：画像プロンプトを作成する

Describe the subject, setting, lighting, and style in one prompt.

Pick an aspect ratio that fits your channel, like square for social posts.

これがその様子です。

✓ チェックポイント: You should see several image variations to choose from.

ステップ3：編集とエクスポート

Use the editing tools to remove backgrounds, expand edges, or upscale.

Download the final image or drop it straight into a document.

✅ 結果: You have a ready-to-post image for ads, blogs, or campaigns.

💡 プロのヒント: Reuse one strong base prompt and swap only the subject.

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How to Use Jasper AI Blog Post Generator

ブログ記事ジェネレータ lets you turn a short brief into a complete blog post draft.

It’s one of Jasper’s 50+ templates, each built for a specific writing task.

Templates speed up content generation because they need minimal input.

以下に、その使用方法をステップごとに説明します。

Step 1: Find the Template

Open “Apps” and explore the library, or search “Blog Post.”

Click the template to open its input form.

Step 2: Fill in the Brief

Enter your topic, target audience, keywords, and preferred tone.

Clear briefs produce far more relevant drafts than vague prompts.

これがその様子です。

✓ チェックポイント: Jasper shows a suggested title and outline before drafting.

ステップ3：生成と洗練

Edit the outline first, then click “Generate” to write content.

Open the draft in the editor to fact-check and add your own detail.

✅ 結果: You have a full first draft ready for human editing.

💡 プロのヒント: Fix the outline first — it saves several rewrites later.

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How to Use Jasper AI Brand Voice

ブランドボイス lets the AI copy your company’s preferred tone and style.

It lives inside Jasper IQ, alongside Knowledge, Audiences, and your Style Guide.

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 Jasper IQ

Click “Brand Voice” under Jasper IQ in the left menu.

Select “Create Voice” to start a new profile.

Step 2: Feed It Real Samples

Paste your best articles, upload files, or add a website URL.

Jasper reads them and writes a voice summary you can edit.

これがその様子です。

✓ チェックポイント: Your new voice appears with a short tone description.

Step 3: Add Rules and Knowledge

Open the Style Guide to set rules for terminology and punctuation.

Add product facts and approved messaging to the Knowledge Base.

✅ 結果: Every new output now sounds like your brand, not generic AI.

💡 プロのヒント: Keep Knowledge current, since stale pages create inaccurate drafts.

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How to Use Jasper AI Chatbot

ジャスパーチャット あなたにブレインストーミング, research, and draft through simple conversation.

Think of it as a fast content collaborator, not a final-copy machine.

以下に、その使用方法をステップごとに説明します。

Step 1: Start a Chat

Click “Chat” in the left menu to open a new thread.

Toggle on your Brand Voice and Knowledge before typing.

ステップ2：明確な指示文を作成する

State the goal, audience, format, and length in one message.

For example: “Give me 10 blog ideas for SaaS founders about SEO.

これがその様子です。

✓ チェックポイント: Jasper replies in seconds with a usable first answer.

Step 3: Iterate, Then Move It Over

Ask follow-ups like “shorter,” “more casual,” or “add stats.”

Copy the best reply into a document for final editing.

Your chat history saves every thread, so you can pick up later.

✅ 結果: You turned a rough idea into a structured draft in minutes.

💡 プロのヒント: Tell Jasper what went wrong; feedback loops improve later outputs.

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How to Use Jasper AI Marketing Editor

Marketing Editor Blog Post is Jasper’s document editor for long form content.

Back when it launched, this editor needed the old Boss Mode plan.

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：新しいドキュメントを作成する

Click “New” and choose a blank document.

Add a title, a short brief, and your target keywords.

Step 2: Write With Commands

Type Jasper commands like “Write an intro about remote work.”

Add headings and images as you go to shape the article.

これがその様子です。

✓ チェックポイント: New text appears right where your cursor sits.

Step 3: Check and Publish

Run the plagiarism チェッカー to confirm the content is original.

Read every claim yourself, then export or copy it to your website.

✅ 結果: You have a polished, original article ready to publish.

💡 プロのヒント: Remix one post into emails, landing pages, and social posts.

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Jasper AI Pro Tips and Shortcuts

These habits make Jasper faster and the outputs sharper.

キーボードショートカット

アクション	ショートカット
Run a Jasper command	Ctrl/Cmd + Enter
Open the command menu	/ (start of a new line)
Undo the last AI insertion	Ctrl/Cmd + Z
選択したテキストを太字にする	Ctrl/Cmd + B

ほとんどの人が見逃す隠れた機能

Jasper Agents: Pre built agents handle research, SEO briefs, and repurposing across multi-step campaigns.
Jasper Recipes: Save a chain of commands to repeat your content creation process at scale.
Copyscape plagiarism checker: It sits in the document editor toolbar, so originality checks take one click.

See the top benefits below:

For deeper learning, Jasper Academy offers training videos from industry experts.

Jasper team members also host live 101 training sessions for new users.

The jasper community and official ユーチューブ channel share more tips and resources.

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Jasper AI Common Mistakes to Avoid

Mistake #1: Skipping Brand Setup

❌ 間違い: Jumping straight into templates with no brand context loaded.

✅ 右: Configure Brand Voice and Knowledge first for higher-quality outputs.

Mistake #2: Publishing Raw Drafts

❌ 間違い: Pasting AI articles live without reading them.

✅ 右: Fact-check every claim, add real insights, and edit for your voice.

Mistake #3: Writing Everything in One Shot

❌ 間違い: Asking for a 2,000-word article from a single vague prompt.

✅ 右: Work iteratively: ideas, outline, sections, then a final edit.

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Jasper AI Troubleshooting

Problem: Outputs Sound Generic

原因： No Brand Voice is selected, or the prompt lacks detail.

修理： Turn on your voice and add audience, goal, and format to the prompt.

Problem: Wrong Facts in Drafts

原因： AI fills gaps when your Knowledge Base is empty or outdated.

修理： Upload current product docs and approved messaging, then regenerate.

Problem: Images Stop Generating

原因： You may have hit a plan limit on image credits.

修理： Check credit usage under Settings, then upgrade or wait for the reset.

📌 注記： If none of these fix your issue, contact Jasper support.

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Jasper AIとは何ですか？

ジャスパーAI is an ai writing assistant built for marketing content.

Think of it like a junior copywriter who knows your brand rulebook.

It helps with ideation, outlining, drafting, repurposing, and editing.

It still needs context, clear instructions, and human oversight to shine.

こちらの簡単な概要をご覧ください。

主な機能は以下のとおりです。

AI Image Suite: Generate and edit on-brand images for social posts and ads
ブログ記事ジェネレータ: Turn a topic and keywords into a complete blog post draft
ブランドボイス： Teach Jasper your tone so every output sounds like you
Jasper Chat: Brainstorm ideas and research topics in a chat window
Marketing Editor Blog Post: Write, edit, and polish long form content in one document editor

詳細なレビューについては、こちらをご覧ください。 Jasper AI review.

Jasperを無料でお試しください

Jasper AIの価格

Here’s what Jasper AI costs in 2026:

プラン	価格	最適な用途
プロ	$59	Solo marketers and small teams needing Brand Voice and templates
仕事	カスタム価格設定	Businesses needing unlimited Brand 声, Knowledge assets, and admin controls

無料トライアル: Yes — 7 days on the Pro plan.

返金保証: Not advertised, so cancel before the trial ends if needed.

See the plan breakdown below:

💰 最もお得な価格: Pro — it covers Brand Voice, templates, Chat, and images.

Jasperを無料でお試しください

Jasper AIと代替案の比較

How does Jasper AI compare? Here’s the competitive landscape:

道具	最適な用途	価格	評価
ジャスパーAI	Brand-consistent marketing content	月額59ドル	⭐ 3.4
チャットGPT	General AI tasks	月額20ドル	⭐ 4.7
フレーズ	SEO research and briefs	月額49ドル	⭐ 4.3
ニューロンライター	Content scoring for SEO	月額19ドル	⭐ 4.2
クイルボット	言い換えと文法	月額4.17ドル	⭐ 4.2
スケールナッツ	SEO blog workflows	月額30ドル	⭐ 4.1
リュトル	Budget short-form copy	月額7.50ドル	⭐ 3.9
ジョットボット	Writing in your own style	月額14ドル	⭐ 3.8

おすすめ商品：

総合ベスト： ChatGPT — flexible, cheap, and strong across most writing tasks.
ベスト予算： Rytr — solid short-form copy for a few dollars a month.
初心者におすすめ： QuillBot — simple interface with a generous free plan.
Best for brand voice at scale: Jasper AI — Brand Voice, Style Guide, and team controls.

🎯 Jasper AI の代替案

Jasper AIの代替製品をお探しですか？おすすめの選択肢をご紹介します。

🔒 ステルスライター: Rewrites AI text to read more naturally and pass AI detectors.
👶 ジョットボット: Learns your personal writing style and helps you draft essays and notes.
📊 ニューロンライター: Scores content against top-ranking pages to boost SEO traffic.
🎨 簡略化: Combines AI writing, design, and video tools in one workspace.
💰 クイルボット: Cheap paraphrasing, grammar, and summarizing with a free forever plan.
🎯 フレーズ: Builds SEO briefs and outlines from live search results.
⚡ スケールナッツ： Takes you from キーワードリサーチ to a full SEO article fast.
💼 リュトル: Budget-friendly copy for ads, emails, and product descriptions.
🌟 チャットGPT: 最も柔軟な AIアシスタント for writing, coding, and research.
🧠 困惑: AI answer engine with cited sources, great for research.
⭐ ジェミニ： Google’s AI assistant, tightly tied to Docs, Gmail, and Search.

全リストについては、こちらをご覧ください。 Jasper AI alternatives ガイド。

⚔️ Jasper AI との比較

Jasper AIが各競合製品と比べてどのような性能を発揮するかを以下に示します。

Jasper AI vs StealthWriter: Jasper creates content; StealthWriter only humanizes it. Pick Jasper for full drafts.
Jasper AI vs JotBot: JotBot suits students and personal writing. Jasper wins for marketing teams.
Jasper AI vs NeuronWriter: NeuronWriter wins on SEO scoring. Jasper wins on brand voice control.
Jasper AIと簡易版の比較： Simplified covers design and video too. Jasper writes stronger brand copy.
Jasper AI vs QuillBot: QuillBot edits text you already have. Jasper writes new content from scratch.
Jasper AI vs Frase: Frase is better for SEO research. Jasper is better for multi-channel marketing.
Jasper AI 対 Scalenut: Scalenut is cheaper for SEO blogs. Jasper offers deeper team and brand features.
Jasper AI vs Rytr: Rytr costs far less. Jasper delivers higher quality and long form content.
Jasper AI vs ChatGPT: ChatGPT is cheaper and broader. Jasper wins on brand guardrails for teams.
Jasper AI vs Perplexity: Perplexity is built for sourced research. Jasper is built for publishing.
Jasper AI vs Gemini: Gemini fits Google Workspace users. Jasper fits marketing teams with strict brand rules.