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Maxは最長210分／MaestraはLite180分・Basic360分・Premium900分（すべて月単位）／Mapifyは1,000万語まで対応。Tactiq/Komeは無料Web版では明示的な長さ上限未記載。Arting AIも公式に最大長は非公表です。",{"type":25,"tag":38,"props":2689,"children":2691},{"id":2690},"利用前のチェックポイントクレジット個人情報信頼性リスク",[2692],{"type":30,"value":2693},"利用前のチェックポイント：クレジット・個人情報・信頼性リスク",{"type":25,"tag":26,"props":2695,"children":2696},{},[2697,2699,2702],{"type":30,"value":2698},"● 処理失敗時のクレジット消費",{"type":25,"tag":516,"props":2700,"children":2701},{},[],{"type":30,"value":2703},"\nクレジット方式（コイン/トークン含む）のサービスでは、動画が年齢制限・非公開・削除等で失敗しても、クレジットが消費される場合があります。大量処理の前には返金／復元ポリシーも必ずチェックしましょう。",{"type":25,"tag":26,"props":2705,"children":2706},{},[2707,2709,2712,2714,2717],{"type":30,"value":2708},"● 無料トライアル時のカード登録と自動更新",{"type":25,"tag":516,"props":2710,"children":2711},{},[],{"type":30,"value":2713},"\nMapifyの3日無料体験は登録時に銀行カード必須です。トライアル後の自動課金移行有無は要事前確認＆カレンダーに解除リマインド推奨。",{"type":25,"tag":516,"props":2715,"children":2716},{},[],{"type":30,"value":2718},"\nカード情報が必要な無料枠は、解約意志確認の手順まで必ず抑えておきましょう。",{"type":25,"tag":26,"props":2720,"children":2721},{},[2722,2724,2727],{"type":30,"value":2723},"● 高機能ツールのブラウザ互換",{"type":25,"tag":516,"props":2725,"children":2726},{},[],{"type":30,"value":2728},"\n全ツールWeb型ですが、MaestraやMapifyの複雑UIは、Chrome/Firefox/Safari/Edge等で見え方や動作が異なる場合あり。所属組織端末や権限制限下のブラウザで使う場合、事前テストをおすすめします。",{"type":25,"tag":26,"props":2730,"children":2731},{},[2732,2734,2737],{"type":30,"value":2733},"● 無料枠の内容を要確認",{"type":25,"tag":516,"props":2735,"children":2736},{},[],{"type":30,"value":2738},"\nKomeは無料1回で生テキストのみ、AI要約・PDF書き出し等は有料。Arting AIは5回分はAI機能も使えますが、動画長ごとのクレジット消費量は事前表示されません。各サービスの無料枠が「どこまで含むか」を把握してから本番利用を。",{"type":25,"tag":26,"props":2740,"children":2741},{},[2742,2744,2747],{"type":30,"value":2743},"● 機密性の高い動画処理時のデータ扱い",{"type":25,"tag":516,"props":2745,"children":2746},{},[],{"type":30,"value":2748},"\n守秘性の必要なインタビューや未発表素材のアップロード時は、各サービスの個人情報・データ保存期間ポリシーまで確認必須。アカウントなしで使えるTactiq/Komeも、処理はサーバー側で実行＝個人認証の有無に関わらず動画自体はアップロードされます。",{"type":25,"tag":26,"props":2750,"children":2751},{},[2752,2754,2757],{"type":30,"value":2753},"● 字幕・キャプションソースの影響",{"type":25,"tag":516,"props":2755,"children":2756},{},[],{"type":30,"value":2758},"\n全サービス共通して、YouTube動画に人手による字幕がある場合の方が精度・品質ともに高くなります。自動生成字幕・地域訛／速口調・専門用語多めの動画はどのツールでも出力品質が下がりやすいです。あくまでもYouTube側の字幕「層」を各ツールが抜き出したりAI変換したりするイメージです。",{"type":25,"tag":26,"props":2760,"children":2761},{},[2762,2764,2767],{"type":30,"value":2763},"● 拡張機能の権限・共用PCでの注意点",{"type":25,"tag":516,"props":2765,"children":2766},{},[],{"type":30,"value":2768},"\nTactiq/Kome/Maestraのブラウザ拡張は、使用許可サイトのページ内容や閲覧状況にアクセス要求されます。IT管理下や共用端末ではインストール前に権限条件を要確認してください。",{"type":25,"tag":26,"props":2770,"children":2771},{},[2772],{"type":25,"tag":68,"props":2773,"children":2776},{"alt":2774,"src":2775},"9.webp","https://cdn.videoplus.ai/arting/cg/staticpage/image2video/best-youtube-transcript-generator/9.webp",[],{"type":25,"tag":26,"props":2778,"children":2779},{},[2780],{"type":30,"value":2781},"最初の3回はログイン不要・カード登録不要。1分以内でタイムスタンプ付き文字起こし＋要約・マインドマップも同セッションでOK。",{"type":25,"tag":26,"props":2783,"children":2784},{},[2785],{"type":25,"tag":1104,"props":2786,"children":2788},{"href":1106,"rel":2787},[1108],[2789],{"type":30,"value":2790},"Arting AIのYouTube文字起こしツールはこちら →",{"type":25,"tag":26,"props":2792,"children":2793},{},[2794],{"type":30,"value":2795},"定期的に動画を処理したい＆月額課金を避けてAIワークフローを始めたいなら、まずは匿名3回・出力内容をテスト→必要ならアカウント作成が◎。",{"type":25,"tag":26,"props":2797,"children":2798},{},[2799],{"type":30,"value":2800},"※掲載の価格・機能一覧は2026年4月時点の各社公開情報に基づき検証済み。無料枠条件・クレジット数など更新される場合があるので、利用前に公式価格ページ要確認。",{"type":25,"tag":26,"props":2802,"children":2803},{},[2804,2806],{"type":30,"value":2805},"関連記事: ",{"type":25,"tag":1104,"props":2807,"children":2810},{"href":2808,"rel":2809},"https://arting.ai/blog/top-ai-video-generator",[1108],[2811],{"type":30,"value":2812},"AI動画生成ツール2026年最新版・徹底比較",{"title":7,"searchDepth":2814,"depth":2814,"links":2815},2,[2816,2817,2818,2819,2820,2821,2822,2823,2824,2825,2826,2837],{"id":40,"depth":2814,"text":43},{"id":75,"depth":2814,"text":78},{"id":405,"depth":2814,"text":408},{"id":656,"depth":2814,"text":659},{"id":895,"depth":2814,"text":898},{"id":1160,"depth":2814,"text":1163},{"id":1399,"depth":2814,"text":1402},{"id":1648,"depth":2814,"text":1651},{"id":1899,"depth":2814,"text":1902},{"id":2426,"depth":2814,"text":2426},{"id":2585,"depth":2814,"text":2588,"children":2827},[2828,2830,2831,2832,2833,2834,2835,2836],{"id":2592,"depth":2829,"text":2595},3,{"id":2603,"depth":2829,"text":2606},{"id":2619,"depth":2829,"text":2622},{"id":2630,"depth":2829,"text":2633},{"id":2641,"depth":2829,"text":2644},{"id":2652,"depth":2829,"text":2655},{"id":2663,"depth":2829,"text":2666},{"id":2679,"depth":2829,"text":2682},{"id":2690,"depth":2814,"text":2693},"markdown","content:ja:blog:best-youtube-transcript-generator.md","content","ja/blog/best-youtube-transcript-generator.md","md",1776427303183]