Open Caption (Burn-In)

What is it?

Open captions are text permanently fused into the video image — "burned in." There's no toggle, no separate track: the words are pixels, as inseparable from the picture as a face or a logo. Where closed captions are an optional layer the player renders, open captions are part of the video file itself, identical for every viewer on every platform forever.

Practical example

Every captioned Reel and TikTok scrolling past you uses open captions: bold words punching onto the screen in the creator's chosen font, styled, positioned, animated — because (a) feeds autoplay muted and the text must be there unconditionally, and (b) most short-form platforms historically offered weak or no closed-caption support, so burning was the only reliable path. The same logic applies to ads ("this message must be readable, period") and to any video that will travel across platforms whose caption features differ: burned text survives every re-upload untouched.

Key things to know (non-technical)

• The trade in one line: control and universality, paid for with permanence — no turning off, no second language, no fixing a typo without re-rendering the video.
• Style becomes available: font, color, size, animation — open captions are designed, part of the visual identity, which closed captions (rendered plainly by the player) never are.
• The decision rule: viewer choice and multiple languages → closed; guaranteed visibility, styling, and cross-platform survival → open.
• Short-form social = open; long-form platforms with real CC support = closed; many productions do both (CC on the YouTube VOD, burned captions on its clips).

In Tupic Live

Open captions are the clip pipeline's job in Tupic Live: every exported Reel/Short gets bold, brand-styled burned-in captions automatically — while the long-form VOD keeps its toggleable CC track — the two caption philosophies each deployed exactly where they win.