テキストツールの AI 動画トップ 5

AI video from text tools are transforming how creators, marketers, and businesses produce engaging video content. These platforms leverage advanced generative AI to turn simple text prompts into compelling videos, making high-quality production accessible to everyone—from solo creators to global enterprises. In this guide, we break down the top 5 AI video generation tools in 2025, comparing standout features, pricing, and best use cases to help you choose the right tool for your needs. We also examine the best free AI video generator tools top 5 ranked for teams on a budget. Drawing on insights from leading industry reviews (TechRadar, Zapier, Influencer Marketing Hub, G2, and VentureBeat), we provide a comprehensive, business-focused overview of the AI video maker ecosystem.

Akool: Best for Enterprise-Grade Brand Control and Workflow Automation

Akool is designed for businesses and creative teams that demand both flexibility and strict brand consistency in their video content. The platform empowers users to generate high-quality videos from text with advanced customization—similar to all-in-one AI tools for script to video—while maintaining robust brand controls and seamless workflow integration. Akool’s intuitive interface, support for dozens of languages, and scalable production capabilities make it a standout for organizations looking to automate video creation without sacrificing creative control or compliance.

Unlike many AI video tools that focus solely on ease of use or creative effects, Akool prioritizes enterprise needs—offering granular brand kit management, API integrations, and privacy-first features. This makes it especially attractive for marketing, HR, and L&D teams that need to produce large volumes of on-brand, multilingual video content efficiently.

Key Features:

• Advanced Brand Kit Management: Set logos, color palettes, and fonts to ensure every video aligns with your brand identity. Akool outpaces competitors like Runway and Sora, which lack this level of branding control.
• Multi-language AI Avatars: Support for dozens of languages and accents, enabling global reach and localization with highly customizable voices and appearances.
• Workflow Automation & API: Integrate Akool with tools like Zapier and Slack, or use its API for automated video generation and batch processing—features rarely found in Google Veo or Sora.

Pricing:

• Free trial with limited video minutes and watermark.
• Paid plans start at $29/month for individuals (10 minutes/month, watermark-free).
• Business and enterprise tiers offer higher limits, API access, and advanced branding controls.
• Custom pricing available for large-scale deployments.

Pros:

• Enterprise-grade brand control and template system.
• Flexible workflow integration with APIs and popular business tools.
• High-quality multilingual avatars for international teams.

Cons:

• Learning curve for advanced features like brand kit setup and workflow automation.
• Fewer cinematic or artistic effects compared to creative-focused tools like Runway.
• Free plan includes watermarks and limited export options.

Use Cases:

• Corporate Training Videos: HR and L&D teams can quickly produce branded, multilingual training content for global employees, ensuring compliance and consistency.
• Marketing Explainers: Marketers can generate product explainers and social media videos that maintain brand consistency across campaigns, reducing manual editing with specialized AI text-to-video tools for marketing.
• Automated Video Updates: Enterprises can automate regular video updates (e.g., compliance, onboarding) via Akool’s API and workflow tools, streamlining repetitive content creation.

Product Updates in 2025:

• Enhanced multi-language support and improved avatar realism.
• Expanded API integrations for automated workflows.
• Granular brand kit management and expanded export options.

Limitations:

• Fewer Artistic Templates: Optimized for business and educational content, so creative storytelling templates are limited compared to Runway or Sora.
• No Native Video-to-Video Editing: Specializes in text-to-video and avatar-driven content, not transforming existing footage.
• Dependent on Brand Kit Setup: Requires time investment to configure brand assets and templates, which may need onboarding for new teams.

What Makes Akool Unique:
Akool uniquely combines enterprise-grade brand control, multilingual avatar support, and workflow automation, making it the go-to solution for organizations seeking scalable, on-brand AI video creation. Its focus on privacy, security, and integration sets it apart from more consumer-oriented or creative-first platforms.

Synthesia: Best for Lifelike Avatar-Based Business Videos

Synthesia is a leading AI video generator specializing in professional videos with realistic talking avatars. Widely adopted for training, onboarding, and global communications, Synthesia offers hundreds of avatars and supports over 140 languages. Its intuitive editor allows users to convert scripts, slides, and documents into engaging videos in minutes, making it a favorite among HR, L&D, and communications teams.

Synthesia’s focus on avatar realism and language diversity positions it as a top choice for organizations needing consistent, presenter-led video content. While it shares some business features with Akool, Synthesia is more limited in workflow automation and brand kit customization, but excels in avatar variety and ease of use.

Key Features:

• Extensive Avatar Library: Over 230 avatars with customizable voices and appearances, suitable for diverse audiences and scenarios.
• AI Dubbing & Translation: Instantly translate videos into 29+ languages with accurate voice and lip sync.
• Script-to-Video Conversion: Easily turn text, PowerPoint slides, or PDFs into polished videos using a drag-and-drop editor and built-in templates.

For teams experimenting before committing, check our roundup of free tools to create AI videos from text with cloned voices.

Pricing:

• Free plan: 3 minutes/month with 9 avatars and watermark.
• Starter: $29/month for 10 minutes/month, 125+ avatars, watermark-free downloads.
• Creator and Enterprise plans: More minutes, API access, custom avatars, advanced collaboration.

Pros:

• Best-in-class avatar realism and nuanced expressions.
• Over 140 languages and accents for global reach.
• User-friendly editor with minimal learning curve.

Cons:

• Limited creative flexibility—focused on business and training, not cinematic storytelling.
• No freeform video editing or support for existing footage.
• Higher cost for advanced features like API and custom avatars.

Use Cases:

• Employee Onboarding: HR teams can create consistent, multilingual onboarding videos without hiring presenters, ensuring a standardized experience.
• Training & E-Learning: Educational content can be rapidly produced and localized for global learners, reducing time-to-market.
• Corporate Communications: Executives can deliver announcements or updates via branded, avatar-led videos, maintaining professionalism and clarity.

Product Updates in 2025:

• Expanded avatar library to over 230 options.
• Advanced AI dubbing with perfect lip sync.
• API for large-scale automation and ISO 42001 certification for security.

Limitations:

• Not suited for narrative or cinematic projects.
• Avatar-only format; no support for animated scenes or cinematic effects.
• Extended video lengths and advanced features require premium tiers.

What Makes Synthesia Unique:
Synthesia is the industry leader for professional, avatar-based video creation, offering unparalleled language support and ease of use for business communications. Its avatar realism and global reach set it apart from more template-driven or creative-first competitors.

Runway: Best for Creative and Cinematic AI Video Generation

Runway is a powerful AI video platform tailored for filmmakers, creatives, and marketers seeking advanced generative tools. It offers text-to-video, image-to-video, and video editing capabilities, with features like motion brushes, camera controls, and inpainting. Runway’s Gen-3 Alpha model delivers high-fidelity, stylized videos with a focus on creative control, making it the top choice for those who prioritize artistic expression over business branding.

Unlike Akool and Synthesia, which focus on business and training content, Runway is built for creative professionals who want to experiment with cinematic effects, animation, and advanced editing. Its educational resources and collaborative workflows further support teams working on complex visual projects.

Key Features:

• Cinematic Text-to-Video: Generate short, high-quality clips from detailed prompts, with precise control over camera movement and scene composition—a capability highlighted in our review of text-to-video AI tools in 2025.
• Advanced Editing Tools: Includes motion brush, inpainting, background removal, and slow-motion effects for post-production flexibility.
• Image-to-Video & Video-to-Video: Animate still images or enhance existing footage for versatile creative workflows.

Pricing:

• Free plan: 125 credits for basic image-to-video.
• Standard: $12/month (billed annually) for watermark-free exports and more models.
• Pro: $28/month; Unlimited: $76/month for custom voices, higher storage, and unlimited generations.

Pros:

• Unmatched creative control with advanced editing tools.
• Supports text, image, and video inputs for versatile workflows.
• Comprehensive Academy and tutorials for user education.

Cons:

• Steep learning curve for mastering advanced features.
• Short clip lengths on free and lower-tier plans.
• No native audio generation—soundtracks must be added externally.

Use Cases:

• Short-Form Storytelling: Filmmakers and artists can prototype scenes or create narrative shorts by experimenting with free AI text-to-video generators every YouTuber should try, leveraging Runway’s cinematic capabilities.
• Marketing & Social Media: Generate eye-catching, stylized clips for campaigns that stand out from template-driven competitors.
• Post-Production Enhancement: Clean up, stylize, or augment existing footage to add value to traditional video workflows.

Product Updates in 2025:

• Launch of Gen-3 Alpha for improved realism and prompt adherence.
• Advanced camera and motion tools.
• 4K upscaling and expanded collaborative workflows.

Limitations:

• Not ideal for business training due to lack of branding and avatar features.
• Limited audio capabilities; external tools required for voiceover or sound effects.
• Longer videos must be compiled from multiple short clips.

What Makes Runway Unique:
Runway stands out for its advanced creative controls and cinematic effects, making it the top choice for filmmakers and visual storytellers seeking AI-powered video generation. Its focus on artistry and flexibility differentiates it from business-centric platforms.

OpenAI Sora: Best for Creative Prototyping and Experimental Visuals

OpenAI Sora enables users to generate visually stunning videos from simple text prompts, featuring unique storyboard and remix capabilities. Accessible via ChatGPT Plus, Sora is designed for rapid prototyping, creative experimentation, and generating abstract or surreal visuals. Its blend and storyboard features allow for multi-scene consistency and concept merging, making it a favorite among artists and designers.

Compared to business-focused tools like Akool and Synthesia, Sora is less suitable for professional training or branded content but excels in creative exploration and rapid ideation. Its integration with ChatGPT makes it accessible to a broad user base, though its output is best suited for experimental projects.

Key Features:

• Text-to-Video Generation: Create short videos from prompts, with options for scene-by-scene storyboarding and visual consistency.
• Remix & Blend Tools: Users can remix existing videos or blend concepts for experimental results.
• Image Animation: Upload images and animate them with custom instructions for unique visual effects.

Pricing:

• Included with ChatGPT Plus ($20/month): 50 video generations/month at 720p, 5 seconds each.
• Pro plan ($200/month): 500 generations/month, 1080p quality, up to 20 seconds per video, watermark removal.

Pros:

• Innovative storyboarding and blend features for complex, multi-scene video generation.
• Easy access via ChatGPT interface.
• Capable of producing unique, dreamlike visuals for creative projects.

Cons:

• Inconsistent output quality—movement, physics, and character consistency can be unreliable.
• Short video durations, even on paid plans.
• No native audio; users must add sound externally.

Use Cases:

• Creative Prototyping: Artists and designers can quickly visualize concepts or story ideas, accelerating the ideation process.
• Experimental Visuals: Ideal for generating abstract, surreal, or dreamlike video content that pushes creative boundaries.
• Content Remixing: Users can remix or iterate on existing AI-generated videos for new directions, supported by AI video generators you can use online for quick experiments.

Product Updates in 2025:

• Storyboard feature for multi-shot sequencing.
• Improved video blending for concept merging.
• Expanded support for remixing user-generated content.

Limitations:

• Not reliable for business use—output quality may not meet professional standards.
• Lacks advanced post-production or branding features.
• No audio generation; external tools required for sound or voiceover.

What Makes Sora Unique:
Sora’s blend of storyboarding, remixing, and concept merging makes it the go-to tool for creative experimentation and rapid visual prototyping, especially for those pushing the boundaries of AI-generated video.

Google Veo: Best for Cinematic AI Video with Native Audio

Google Veo offers two advanced AI video models—Veo 2 and Veo 3—delivering high-resolution, cinematic videos from text prompts. Veo 3 introduces native audio generation, including dialogue and sound effects, while Veo 2 excels at realistic motion and object interaction. Both models are designed for filmmakers and content creators seeking top-tier video quality and prompt adherence, setting a new standard for realism and immersion in AI video.

While Veo’s cinematic quality and audio capabilities are unmatched, it lacks the business branding and workflow automation features found in Akool and Synthesia. This positions Veo as a premium choice for filmmakers, storytellers, and marketing teams producing high-impact trailers or short films.

Key Features:

• High-Resolution Video Generation: Veo 3 supports up to 720p (capable of 4K), with crisp visuals and strong prompt adherence.
• Native Audio & Dialogue: Veo 3 can generate sound effects, ambient noise, and dialogue—comparable to many free AI video generators with text-to-speech options.
• Image-to-Video Support: Veo 2 animates still images with character and scene consistency across shots.

Pricing:

• Veo 2: Limited free credits via Google AI Studio.
• Veo 3: Google AI Pro plan ($19.99/month) or Ultra plan ($249.99/month), with Pro users getting a set number of generations and Ultra users receiving daily refreshes.

Pros:

• Cinematic quality and prompt adherence.
• Native audio generation, including dialogue and sound effects.
• 複雑なプロンプトの解釈における優れたパフォーマンス。

短所:

• Veo 3 には無料プランはありません。最新機能を利用するにはサブスクリプションが必要です。
• リップシンクと字幕に時折不具合が発生する。
• 編集の柔軟性が限られており、ビジネスブランディングツールはありません。

ユースケース:

• ショートフィルム制作: 映画制作者は、映画のようなビジュアルとサウンドを使ったナラティブコンテンツのプロトタイプ作成や制作を迅速に行えるため、プリプロダクション時間を短縮できます。
• マーケティングトレーラー: ブランドは、Veoのシネマティッククオリティを活用してインパクトのあるティーザー動画や製品ショーケースを作成して、エンゲージメントを最大限に高めることができます。
• ストーリーボード: クリエイターは、本格的な制作前にスクリプトやシーンを視覚化できるため、計画やコラボレーションが改善されます。

2025年の製品アップデート:

• ネイティブオーディオのサポートと映画品質の向上を備えたVeo 3の発売。
• Veo 2のキャラクターの一貫性が強化され、無料クレジットオプションが拡張されました。

制限事項:

• クリップの持続時間が短い（8〜10秒）。長いコンテンツには手動で組み立てる必要があります。
• ビジネスブランディングツールはありません。企業コミュニケーションにはあまり適していません。
• 最高の機能を提供するプレミアム価格設定は、小規模なチームにとっては法外かもしれません。

グーグルヴェオがユニークな理由:
Google Veoは、ネイティブオーディオ生成と映画のような品質を提供する唯一の主要なAIビデオツールであり、アバターベースのプラットフォームやテンプレート主導のプラットフォームを超えたリアリズムと没入感を求める映画製作者やストーリーテラーに最適です。

機能比較と市場状況

AI動画メーカーの世界では、すべてのトップツールがテキストから動画への自動化を提供していますが、その強みはターゲットオーディエンスとユースケースによって異なります。AkoolとSynthesiaはビジネス、トレーニング、ブランドコンテンツでリードし、Akoolはワークフローの自動化とブランドコントロールに優れ、Synthesiaはアバターのリアリズムと言語サポートに優れています。RunwayとGoogle Veoは映画製作者やクリエイティブのニーズに応え、Runwayは高度な編集とクリエイティブな柔軟性を提供し、Veoは比類のないシネマティックビジュアルとネイティブオーディオを提供します。OpenAI Sora はラピッドプロトタイピングと実験的なビジュアルで際立っており、アーティストやデザイナーにとって理想的です。

競合他社のレビュー（TechRadar、Zapier、インフルエンサー・マーケティング・ハブ、G2、VentureBeat）では、使いやすさ、統合、スケーラビリティの重要性が強調されています。ただし、中小企業向けのアクセシビリティ、高度な統合、実用的なアドバイスにはまだギャップがあります。Akoolはエンタープライズ向け機能とワークフローの自動化に重点を置いてこれらのギャップの多くを解決し、RunwayとVeoはクリエイティブコントロールと映画品質の限界を押し広げています。

企業にとって、多くの場合、ブランドの一貫性、自動化、クリエイティブの柔軟性のバランスを取ることにかかっています。クリエイティブチームにとって、映画のクオリティと編集力は最優先事項です。AI 動画ツールが進化し続けるにつれて、プライバシー、コンプライアンス、アクセシビリティがますます重視される中で、ビジネス機能とクリエイティブ機能の融合がさらに進むことが予想されます。

ワークフローの統合、高度な API の使用法、または実際のケーススタディについて詳しくは、各プラットフォームのドキュメントとユーザーコミュニティをご覧ください。カスタマイズされた推奨事項を求めている場合は、スケーラブルなブランドコンテンツ、映画のようなストーリーテリング、迅速なクリエイティブプロトタイプ作成など、主なユースケースを検討し、ワークフローとビジネス目標に最も適したツールを選択してください。その他の無料オプションについては、 無料のAIビデオクリエーターのベストリスト 早期テストの情報提供に役立ちます。

よくあるご質問

テキストツールからの AI ビデオはどのように機能しますか?

テキストツールからの AI ビデオは、生成的な AI モデルを使用して、書かれたプロンプトやスクリプトをビデオコンテンツに変換します。これらのプラットフォームは、ユーザーの入力に基づいてビジュアル、アバター、場合によっては音声を生成することで、動画制作を自動化します。

ビジネスブランディングに最適なAIビデオツールはどれですか？

AkoolやSynthesiaなどのプラットフォームは、高度なブランド管理やアバターのカスタマイズが可能なため、複数の言語やチームで一貫性のあるブランドに合った動画コンテンツを必要とする企業に最適です。

これらのツールをクリエイティブな映画制作に使用できますか？

はい、RunwayやGoogle Veoなどのツールはクリエイティブなプロジェクト向けに設計されており、映画のような効果や高度な編集が可能です。ただし、ブランディングやワークフローの自動化など、ビジネスに焦点を当てた機能が欠けている可能性があります。

AIビデオジェネレーターの無料プランはありますか？

ほとんどの主要プラットフォームでは、無料試用版または限定無料プランが提供されており、通常は透かしが入り、エクスポートオプションが制限されています。有料プランにアップグレードすると、より多くの機能、より高い動画の上限、透かしのないエクスポートが可能になります。

これらのツールは複数の言語をサポートしていますか？

AkoolやSynthesiaなどの多くのAIビデオプラットフォームは、数十の言語とアクセントをサポートしています。これにより、世界中の視聴者向けにローカライズされたコンテンツを簡単に作成できます。