JIZURA: a lyric-video generator app built with Opus 5.5, rendering kinetic Japanese text on a phone (X video)
852話(hakoniwa) (@8co28) · 2026-09-23 · ai-made · 433,303 views
Made by AI
Model: Claude Opus 5.5 · Series: Agent-built app (the video shows the result)
Evidence: X post (2026-09-23): 'Opus5.5（AI）で、超簡単に「文字PV風動画」を作れるジェネレーター『JIZURA 字面』を開発しました。スマホからも動かせます。（まだ公開前） / 歌詞を入れるだけ！タイミングは曲聴きながらボタンを押すだけ。詳細編集もできます。 / これは音無しです'
Human role: Creator developed the app with Opus 5.5 (not yet released at posting).
Pipeline: Opus 5.5 → web app that makes lyric videos → 1:46 demo
What's in the video
Description written by Gemini, which watched and listened to the whole video.
Summary
This video is a mobile screen capture demonstrating "JIZURA (字面)", an interactive lyric-video generator app built using Claude Opus 5.5, presented by creator 852話 (hakoniwa). The tool procedurally arranges and animates Japanese kinetic typography on an iPhone in real time, cycling through diverse aesthetic presets and motion parameters at the tap of a button.
What is shown
- JIZURA Mobile UI: Shows a touch-optimized web interface featuring top navigation buttons ("かんたん" / Simple, "詳細" / Details, "開く" / Open, "保存" / Save, "AE用に書き出し" / Export for After Effects), a playback timeline of 12.15 seconds, loop/shuffle toggles, parameter tracks, and a prominent "おまかせで作る" (Generate Random) button [00:00].
- Preset Variations & Real-Time Rendering:
- Crimson Signal × Glitch (クリムゾン・シグナル × グリッチ): Neon pink and crimson color scheme with heavy digital artifacting, scanlines, and rapid font slicing [00:00–00:12, 01:34–01:45].
- Dark HUD × All-in-One (ダークHUD × 全部入り): Dark sci-fi interface motif with radar circles, targeting reticles, coordinate ticks, and bold yellow/white kinetic typography [00:13–00:24].
- Blueprint × Pop (ブループリント × ポップ): High-contrast electric blue, white, and yellow graphic design with dynamic angled framing, bouncing text, and perspective waves [00:25–00:36].
- Dark HUD × Gentle/Calm (ダークHUD × しっとり): Minimalist dark HUD featuring subdued radial typographic tracks and slow drift motions [00:37–00:47, 01:23–01:33].
- Noir Chroma × Editorial (ノワール・クロマ × エディトリアル): High-fashion monochrome layout using editorial font hierarchies, typographic frames, and clean snap cuts [00:48–01:00].
- Specimen × Calm (スペシメン × しっとり): Typographic specimen poster style with subtle fade and drift behaviors [01:00–01:10].
- Noir Chroma × Emotional (ノワール・クロマ × エモーショナル): Multi-layered chromatic distortion, 3D extruded lettering, and rotational typography [01:11–01:22].
- Timeline Parameter Blocks: Displays real-time modular tags controlling layout (e.g.,
中央,縦敷き,円型,残像スタック), entrance (落下,ポップ,登録 ズーム), hold/idle (ドリフト,静止,保持 ジッター), exit (カット,爆散), and graphic ornaments (飾り枠,グリッド,装飾 スラッシュ).
Claims & numbers
- The timeline length for the demonstrated song segment is exactly 12.15 seconds [00:00].
- The UI notes that users can trigger generation either via the UI button or by pressing the "R" key on a keyboard [00:00].
- The application includes direct export compatibility for Adobe After Effects via the "AE用に書き出し" button [00:00].
Notable quotes
- "押すたびに、スタイル・雰囲気・動き・配色・構成がまるごと変わります。キーボードの [R] でも実行できます。" [00:00] (UI description text)
- "おまかせで作る" [00:00] (Main action button)
- "AE用に書き出し" [00:00] (Top navigation export action)
Assessment
A genuine, real-time screen recording of a functional web application running in a mobile browser. The video cleanly demonstrates interactive procedural generation of kinetic typography across multiple preset visual themes without deceptive editing.
Lyrics & themes
The audio snippet features a Japanese Vocaloid/J-pop style track exploring emotional deification, heartbreak, and disillusionment:
- "あなたを神格化してた" (I had deified you) [00:01]
- "本当に好きだった" (I truly loved you) [00:04]
- "そう思ってた" (Or so I thought) [00:06]
- "全肯定なんて安っぽい言葉じゃ語れないくらい" (So deeply that cheap words like 'unconditional validation' can't even describe it) [00:07–00:11]
Lore & references
- Vocaloid/MV Culture: The motion design directly channels modern Japanese "MV" (music video) kinetic typography trends popularized on Nico Nico Douga and YouTube.
- Claude Opus 5.5 App Generation: Developed during late September 2026 as showcase experiments where frontier coding models generate entire standalone, browser-based creative software tools with complex Canvas/WebGL engines.
Visual style & craft
- Rendering Engine: Procedural Canvas/WebGL typography rendered locally in a mobile browser, supporting real-time text transformation, warping, masking, and particle explosions.
- Graphic Design Elements: Incorporates authentic Japanese graphic design motifs, including technical telemetry (HUD coordinates, crosshairs), editorial print layout rules, vertical text writing (
縦書き), circular coordinate wrapping, and glitch chromatic displacement.
Described by gemini-3.8-flash on 2026-10-05 from the video's audio and frames.