Every SubGrab Limit: Video Length, File Size and Speakers
How long a video SubGrab can transcribe from a link or an upload, how big a file can be, how many speakers it labels, and what happens past each limit — all in one table.
Short answer
A link can be up to 10 hours long, and YouTube videos and Kick, SOOP and CHZZK streams up to 16 hours. An uploaded file can be up to 10 hours and 100 MB once your browser has compressed its audio. Speaker labels tell up to eight voices apart. Anything past a limit is refused before a credit is charged.
A link can be up to 10 hours long, and YouTube videos and Kick, SOOP and CHZZK streams up to 16 hours. An uploaded file can be up to 10 hours and 100 MB once your browser has compressed its audio. Speaker labels tell up to eight voices apart. Anything past a limit is refused before a credit is charged, and the message says which limit it hit.
Every Limit in One Table
| What | Limit | Past the limit |
|---|---|---|
| A video from a link | 10 hours | Refused before charging |
| YouTube videos or Kick, SOOP or CHZZK streams | 16 hours | Refused before charging |
| A transcript from a video's own captions | Any length, 1 credit | — |
| An uploaded file | 10 hours, 100 MB after compression | Refused before uploading |
| Upload in a browser that can't compress audio | About 50 minutes (100 MB of uncompressed audio) | Use a recent browser, or upload a shorter part |
| A recording from a browser tab | 60 minutes per recording | Recording stops and that part is transcribed |
| Speaker labels | Up to eight voices | No labels, and the add-on's credits come back |
| Jobs running at once | Two per account | Turned away, nothing charged; start it again when one finishes |
| AI transcriptions per hour | 15 per account, 10 from one internet connection | Try again later |
Links: 10 Hours, 16 for YouTube, Kick, SOOP and CHZZK
Most links can be up to 10 hours long. That covers a two-hour podcast, a full-day conference recording split into sessions, and almost every Twitch VOD, which is also capped at 10 hours.
Kick, SOOP and CHZZK are different: their replays are whole unedited broadcasts, and some run past 10 hours — the ones we had to turn away before November ran 10.8 to 12.6 hours. Those streams go up to 16 hours from the link. We raised their limit after timing a real 11.6-hour Kick stream on our own servers. YouTube followed on 7 November 2026, after we timed an 11.5-hour YouTube video the same way (it downloaded in under 3 minutes and was ready to transcribe in under 6), so a whole YouTube live-stream replay or a full conference day fits too. Twitch VODs stay at 10 hours. How to transcribe a full livestream VOD has the details and the costs.
Before you confirm, the quote shows the video's length and its price. A link past the limit stops there, with no charge.
Uploads: 10 Hours in a Browser That Compresses Audio
When you upload a file, your browser reads it on your own computer and compresses the audio before anything is sent. In a recent browser such as Chrome or Edge, that makes even a 10-hour recording small enough for the 100 MB limit. Every upload then stops at a card showing its name, length and price, so you confirm before anything is charged.
A browser that can't compress audio sends it uncompressed instead, and that reaches 100 MB at about 50 minutes. If an upload stops there, open SubGrab in a recent Chrome or Edge.
Recording From a Tab: 60 Minutes at a Time
When a platform won't let us fetch a video you can play yourself, the failed page offers to record it from a browser tab (desktop Chrome or Edge, signed in). It records in real time, up to 60 minutes per recording; for a longer video, record it in parts.
Speaker Labels: Up to Eight Voices
Speaker labels are an optional add-on on AI transcripts, 1 credit per started hour. The model behind them tells up to eight voices apart, and a voice needs a few seconds of speech to count as a speaker. If only one voice is heard, or the labelling fails, you get the transcript without labels and the add-on's credits come back.
What a Long Video Costs
AI transcription costs 1 credit per started hour of audio: 61 minutes is 2 credits, and a 16-hour video is 16. Speaker labels add 1 credit per started hour on top. A transcript taken from a video's own captions is 1 credit whatever its length. A credit costs $0.22 to $1.33 depending on the pack, less on a first purchase, which adds bonus credits, and credits never expire. If a job fails, its credits are refunded automatically.
Two Jobs at a Time
Each account can run two transcriptions at once. A third is turned away, with nothing charged, until one of them finishes. There is also a limit of 15 AI transcriptions an hour per account, and 10 from one internet connection, so a shared network can hit it first.
Frequently asked
What is the longest video SubGrab can transcribe?
YouTube videos and Kick, SOOP and CHZZK streams of up to 16 hours, from their links. Every other link, Twitch VODs included, can be up to 10 hours, and so can an uploaded file.
What happens if a video is longer than the limit?
The quote says so and nothing is charged. To transcribe part of it, save that part as a file and upload it; SubGrab has no way to pick a section of a link.
Why does my upload stop at about 50 minutes?
Your browser couldn't compress the audio, so it sent uncompressed audio, which reaches the 100 MB limit at about 50 minutes. A recent browser such as Chrome or Edge compresses it first, and then a recording of up to 10 hours fits.
Does a long video cost more?
Yes, by the hour: AI transcription is 1 credit per started hour of audio, so a 16-hour video is 16 credits. A transcript taken from a video's own captions is 1 credit whatever its length.