SummaStream
Frequently asked questions
Short answers to the questions people ask most about SummaStream — what it summarizes, which links and formats it supports, and what happens to your input.
What is SummaStream?
SummaStream is an AI-powered summarization tool that helps you turn supported videos, audio recordings, URLs, long text, PDFs, and DOC/DOCX files into concise summaries, key points, detailed notes, transcripts, and action items.
What's the best AI video summarizer tool?
SummaStream is designed to summarize supported videos and audio recordings with AI. You can upload a supported video or audio file, or use a supported URL, and generate a transcript and structured summary without manually watching or listening to the entire recording.
How to use YouTube video summarizer?
To summarize a supported YouTube video with SummaStream, paste the YouTube video URL into the URL input and start the summarization process. SummaStream uses the available transcript for supported YouTube videos and then generates an AI-powered summary, key points, notes, and other available insights.
How can I upload a video to summarize?
Select the video upload option in SummaStream, choose a supported video file from your device, and start the summarization process. SummaStream processes the video, generates a transcript, and creates an AI-powered summary and structured notes.
Which URLs can I paste?
SummaStream supports the URL types and providers that are currently implemented by the application. Supported public URLs can be processed according to their available transcript or media access. Private, login-required, restricted, DRM-protected, or inaccessible URLs may not be supported. When a URL cannot be accessed, uploading the video or audio file directly is the recommended alternative.
Do I need an account or a subscription?
No. SummaStream works without an account, a sign-in or a payment. Processing runs on the transcription and language-model credentials this deployment is configured with.
What can I summarize with SummaStream?
SummaStream accepts four kinds of input: audio and video files (MP3, WAV, M4A, AAC, OGG, MP4, MOV, WebM), supported URLs such as YouTube videos with public captions, long pasted text, and PDF, DOCX or DOC documents.
How does SummaStream summarize a video?
You upload a supported video or paste a supported link, and SummaStream extracts the audio track, transcribes it with timestamps, and summarizes the transcript into structured output — a summary, key points, detailed notes, action items, decisions and open questions. The summary is generated only from that transcript.
Can SummaStream summarize long videos?
Yes. Long recordings are split into overlapping sections that are summarized individually and then combined into one coherent result, so a multi-hour meeting is not flattened into a single paragraph.
Can I summarize a long text with AI?
Yes. Paste long text into the text input, within the limit this deployment advertises, and SummaStream splits it into overlapping sections, summarizes each one, and combines them into a single summary with notes and key points.
Can I summarize PDF and DOCX files?
Yes. SummaStream reads PDF, DOCX and DOC files and summarizes their text exactly like any other input. DOC is best-effort — if a .doc cannot be read we say so. Scanned or image-only PDFs have no text to read, and the app tells you when that happens.
Which URLs can I paste into SummaStream?
SummaStream currently supports YouTube links, processed from the video's publicly available captions. Private, login-required, restricted, DRM-protected or inaccessible URLs are not supported — upload the video or audio file directly instead.
Can SummaStream generate a video transcript?
Yes. Every recording produces a full transcript. When the transcription provider returns timestamps, they are included so the transcript can be searched, and the transcript is included in both the TXT and PDF exports.
Can SummaStream summarize meetings and lectures?
Yes. SummaStream has dedicated summary styles for meetings, lectures, interviews and customer calls. Meetings capture decisions, action items with owners and deadlines, and open questions; lectures keep concepts, definitions and worked examples in teaching order.
Can I download my AI summary as a PDF or TXT file?
Yes. The results page offers both TXT and PDF downloads that contain the summary, key points, detailed notes, action items, decisions and the full transcript.
Does SummaStream support multiple languages?
SummaStream can process recordings in the languages its configured transcription provider understands — the default endpoint detects the recording's language automatically, and the summary is generated from that transcript. The SummaStream interface itself is available in eight languages.
Is SummaStream free to use?
No account and no payment are required. Availability and limits depend on the deployment, which runs on whichever transcription and language-model credentials its operator has configured.
Are my uploaded files stored?
No. Uploaded recordings are held in the server’s memory only while they are being processed, are never written to disk, and are never served from a public URL. The transcript and summary stay retrievable for up to an hour so you can read or export them, then they are dropped. You can delete a result at any time from its page. Nothing is kept as a permanent record.
Can I summarize a YouTube video without watching it?
Yes. Paste a YouTube link and SummaStream reads the video’s public captions, then generates the summary, key points, notes and other available insights — there is no download and nothing to export first. Videos without public captions can be uploaded directly instead.
What happens if a URL cannot be accessed?
SummaStream returns a clear error explaining why — the link may be private, login-required, DRM-protected, removed, region-locked or temporarily unavailable. The recommended option is to download the recording and upload the file directly, which no longer depends on the link being public.
What video and audio formats are supported?
Uploads: audio in MP3, WAV, M4A, AAC and OGG, and video in MP4, MOV and WebM. Documents: PDF, DOCX and DOC. Files are validated by their actual contents — not just their filename — and are capped at the size limits this deployment advertises.