強力な無料のタイムラインエディタと頑健な自動字幕機能を備えていますが、AIトーキングヘッドアバターへの特化度は低めです。
Captions は月間 698,558 訪問、前月比成長率 -12.5%、料金体系フリーミアムを記録しています。StreamGen は月間 23,292 訪問、成長率 -14.9%、料金体系フリーミアムを記録しています。

StreamGen is an AI clipping workspace for Twitch streamers that scans your VODs for highlight-worthy moments, turns them into vertical captioned shorts, and schedules them straight to TikTok, YouTube Shorts, and Instagram Reels — all from one dashboard.
| 項目 / 指標 | ![]() | |
|---|---|---|
| 公式ドメイン | captions.ai | streamgen.cc |
| 料金モデル | フリーミアム | フリーミアム |
| 月間訪問数 | 69.86万 (698,558) | 2.33万 (23,292) |
| 前月比トラフィック増減 | -10.01万 (-12.5%) | -4072 (-14.9%) |
| 主要市場とシェア | 🇺🇸 アメリカ合衆国 (17.2%) | 🇺🇸 アメリカ合衆国 (30.5%) |
| 月間ダイレクト訪問数 | 33.34万 | 9014 |
| ユーザー評価 | 4.2 | 4.1 |
| 対応プラットフォーム | ウェブサイト | ウェブサイト |
プロの編集者のように動画を仕上げてくれる AI
ビジュアルスタイルを選ぶと、シーン切り替え、ズーム、B-roll の重ね表示、音楽を自動で適用し、編集済みの動画を一度に出力します。
スタイル付きフォントの単語単位アニメーション字幕を生成し、100 言語以上への翻訳と字幕付けも行えます。
自分のデジタルツインを作成するか、用意されたアバターから選び、プロンプトで服装や背景を変えて同じ演者を別のテーマにも再利用できます。
簡単なテキスト指示で編集内容を指定できるため、タイムライン未経験者でも高度な編集が可能です。

StreamGen is an AI clipping workspace for Twitch streamers that scans your VODs for highlight-worthy moments, turns them into vertical captioned shorts, and schedules them straight to TikTok, YouTube Shorts, and Instagram Reels — all from one dashboard.
Scans your entire Twitch VOD — including 8+ hour streams — and ranks moments by energy level, chat reaction, and shareability.
Smart layouts keep facecam and gameplay in frame while you add animated captions, hooks, silence cuts, and word censoring.
Connect TikTok, YouTube Shorts, and Instagram Reels once, then queue clips and let them publish on a schedule, even mid-stream.
Reusable caption styles and effects in 90+ languages keep every short on-brand, with automatic or manual profanity filtering.
強力な無料のタイムラインエディタと頑健な自動字幕機能を備えていますが、AIトーキングヘッドアバターへの特化度は低めです。
Full desktop video editor pairing extensive AI tools with a traditional timeline, but requires software installation.
Full desktop video editor pairing extensive AI tools with a traditional timeline, but requires software installation.
強力な字幕・アバターツールを備えた包括的なブラウザベースの動画スイートですが、ヘビーユース時には割高になることがあります。
強力な字幕・アバターツールを備えた包括的なブラウザベースの動画スイートですが、ヘビーユース時には割高になることがあります。
Generates full marketing videos from prompts with multi-track timelines, but lacks Captions' specific talking-head polish.
Generates full marketing videos from prompts with multi-track timelines, but lacks Captions' specific talking-head polish.

特化型OpusClip is an AI video clipping and editing platform that turns long recordings, podcasts, webinars and livestreams into short vertical clips ready for TikTok, YouTube Shorts and Reels. Paste a link or upload footage and it finds the strongest moments, adds animated captions, reframes the subject and can schedule posts in one flow.
特化型OpusClip is an AI video clipping and editing platform that turns long recordings, podcasts, webinars and livestreams into short vertical clips ready for TikTok, YouTube Shorts and Reels. Paste a link or upload footage and it finds the strongest moments, adds animated captions, reframes the subject and can schedule posts in one flow.
特化型各ショットを計画・生成・編集するAIビデオエージェント

Vizard is an AI video editor and clipping tool that turns long-form videos, webinars, podcasts, and interviews into short, social-ready clips for TikTok, Instagram Reels, and YouTube Shorts. It auto-detects highlights, reframes to vertical, generates subtitles, and lets you edit by deleting transcript text.
Vizard is an AI video editor and clipping tool that turns long-form videos, webinars, podcasts, and interviews into short, social-ready clips for TikTok, Instagram Reels, and YouTube Shorts. It auto-detects highlights, reframes to vertical, generates subtitles, and lets you edit by deleting transcript text.

Submagic is an AI video editor for short-form content that automatically adds animated captions, b-roll, zooms, sound effects and music to raw footage, then lets you publish across TikTok, Instagram Reels, YouTube Shorts and more.
Submagic is an AI video editor for short-form content that automatically adds animated captions, b-roll, zooms, sound effects and music to raw footage, then lets you publish across TikTok, Instagram Reels, YouTube Shorts and more.

Ssemble is an AI clip maker that turns long videos into short vertical clips ready for TikTok, YouTube Shorts, Instagram Reels and X. Paste a link from YouTube, Twitch, Kick or Vimeo, or upload your own file, and it finds the strongest moments, adds captions, reframes for vertical, and can schedule the finished posts for you.
Ssemble is an AI clip maker that turns long videos into short vertical clips ready for TikTok, YouTube Shorts, Instagram Reels and X. Paste a link from YouTube, Twitch, Kick or Vimeo, or upload your own file, and it finds the strongest moments, adds captions, reframes for vertical, and can schedule the finished posts for you.

無料・オープンソースVmaker AI is an AI video creation and editing platform for recording screens, generating shorts from long videos, adding subtitles and turning text, audio or documents into avatar-led videos.
無料・オープンソースVmaker AI is an AI video creation and editing platform for recording screens, generating shorts from long videos, adding subtitles and turning text, audio or documents into avatar-led videos.
長尺動画をワンクリックでバイラルなTikTok・Reels・Shortsに
AIでTwitch・YouTube・Kickの配信をバズる縦型クリップに変換