# AI Subtitle Generator > An AI subtitle generator turns the speech in a video into timed subtitles in about 1–3 minutes, with no typing. Kenerate's version burns them into the picture as one MP4 at 720p or 1080p, in 10 styles, with Auto-detect or 10 spoken languages, for clips up to 4 minutes. It doesn't export SRT or VTT files. URL: https://kenerateai.com/ai-subtitle-generator Publisher: Kenerate AI (https://kenerateai.com) Last updated: 6 October 2026 ## Key facts - Output: One MP4, subtitles burned in - Styles: 10 - Spoken languages: Auto-detect + 10 - Clip limit: 4 min · 100 MB - Resolution: 720p or 1080p HD - Subtitle files: No SRT or VTT export - TikTok, Reels and Shorts (9:16) (Position: Middle): Style: Rizz or Glide Pop → 1080p HD · shadow Mid. Bold, word-highlight subtitles clear of the app's buttons. - YouTube and websites (16:9) (Position: Bottom): Style: Simple or Plain → 1080p HD · shadow Mid. Classic subtitles where viewers expect them. - Ads watched on mute (Position: Bottom or Middle): Style: Glass → 1080p HD · shadow Max on bright scenes. Readable over busy product shots. - Tutorials and screen recordings (Position: Top): Style: Simple or Terminal → 1080p HD · shadow Soft. Keeps controls and toolbars at the bottom visible. - Interviews with name titles (Position: Top): Style: Plain or Lowkey → 720p or 1080p · shadow Mid. Stays clear of lower-third name graphics. ## Steps 1. Upload the video — MP4, MOV or WebM up to 4 minutes and 100 MB; sign in with a verified email first. 2. Set the spoken language — Keep Auto-detect, or pin one of 10 languages for accents and mixed speech. 3. Choose the style and position — Simple at the bottom is the default; see the platform table for other picks. 4. Pick 720p or 1080p HD — 1080p keeps small styles sharp after a platform recompresses the upload. 5. Generate and check — About 1–3 minutes; compare Original and Captioned, then download the MP4. ## In depth ### Two kinds of subtitle generator File generators write the transcript into a subtitle file such as SRT or WebVTT, which a player shows on top of the video and the viewer can switch off [2][3]. Burned-in generators draw the text into every frame, so it's part of the picture: it can't be turned off, but it appears in every app, feed and player exactly as styled. Kenerate's generator is the burned-in kind. ### The four steps In Kenerate all four run in one job; you set the look and the spoken language, then download the result. - Recognise: speech recognition turns the audio into words [1]. - Split: the transcript is broken into short lines that fit on screen. - Time: each line is matched to when its words are spoken. - Draw: the lines are rendered in the chosen style, position and shadow. ### What decides accuracy Clear speech, little background music and one language at a time give the best transcripts. Strong accents and mixed-language speech are where pinning the spoken language helps most. Names, brands and jargon are the most common errors, so check them before you post. References: [1] Speech recognition — Wikipedia: https://en.wikipedia.org/wiki/Speech_recognition [2] SubRip (SRT) — Wikipedia: https://en.wikipedia.org/wiki/SubRip [3] WebVTT — Wikipedia: https://en.wikipedia.org/wiki/WebVTT ## FAQ Q: How does an AI subtitle generator work? A: It runs speech recognition on the audio, splits the transcript into short lines, times each line to the words and draws the lines onto the video. Kenerate's generator does all four steps in one run of about 1–3 minutes and returns a single MP4 with the subtitles burned in, at 720p or 1080p. Q: Can I download an SRT or VTT subtitle file? A: No. Kenerate's subtitle generator only burns subtitles into the video; it does not export SRT, VTT or any other subtitle file. If you need a file that viewers can switch on and off, or one you can edit and translate, use a tool that exports subtitle files. Q: Can I edit the subtitles after they're generated? A: Not inside the tool: there is no text or timing editor, because the words are drawn into the picture. To improve a run, lower background music, pin the spoken language and generate again. For hand-corrected subtitles, a subtitle-file workflow is the better fit. Q: Which languages does the AI subtitle generator support? A: Auto-detect plus 10 spoken languages: English (US), English (India), Spanish, French, German, Japanese, Chinese, Italian, Portuguese and Russian. Hindi is listed by the provider but is not offered yet, because test runs failed. Subtitles are written in the language that is spoken. Q: Can it make subtitles in another language? A: Not directly, because it doesn't translate. You can dub the video into another language with Kenerate's AI dubbing first, then run the dubbed video through the subtitle generator with that language pinned, as long as it's one of the 10 the subtitle tool lists. Q: How long can the video be? A: Up to 4 minutes and 100 MB per clip. For a longer video, split it into parts in an editor, subtitle each part, then join them again. Export every part at the same size so the joins stay clean. Q: Is the AI subtitle generator free? A: There is no subscription. It runs on credits, priced by the length of the clip, and new accounts get starter credits to try it on their own video. You need to sign in with a verified email before the first run. ## Related pages - Add subtitles to video: https://kenerateai.com/add-subtitles-to-video - Auto subtitle generator: https://kenerateai.com/auto-subtitle-generator - AI caption generator: https://kenerateai.com/ai-caption-generator - TikTok captions: https://kenerateai.com/tiktok-captions - Open captions: https://kenerateai.com/open-captions ## Sources - Kenerate Auto Subtitles (tool): https://kenerateai.com/app/tool/subtitles - Speech recognition — Wikipedia: https://en.wikipedia.org/wiki/Speech_recognition - SubRip (SRT) — Wikipedia: https://en.wikipedia.org/wiki/SubRip - WebVTT — Wikipedia: https://en.wikipedia.org/wiki/WebVTT - Subtitles — Wikipedia: https://en.wikipedia.org/wiki/Subtitles