Reduz · Head-to-head
Glasp YouTube Summary vs Reduz: fast video summaries or broader BYOK workflow?
By 
ReduzUpdated May 11, 2026Side-by-side comparison
Glasp YouTube Summary is a popular YouTube-only summarizer. Its meaningful strength is that the basic flow works with no sign-up required, and users pick the model (ChatGPT, Claude, Gemini, Mistral). Reduz keeps the no-signup ease for the your own AI key path and extends to PDFs, articles, webpages, transcripts, and selected text. Reduz also adds local history that survives switching browsers, exports to Markdown / PDF / DOCX, and 100 free monthly hosted credits without a card. Pick by whether YouTube is the entire job.
Quick verdict
Feature comparison
The categories below cover what most readers compare when deciding between Reduz and Glasp YouTube Summary — source coverage, privacy approach, your own AI key support, history and exports, and price.
| Category | Reduz | Glasp YouTube Summary |
|---|---|---|
| YouTube workflow | Transcript-based summaries with timestamped moments and local history. | Fast YouTube transcript summaries. |
| Beyond YouTube | PDFs, articles, webpages, selected text, and transcripts. | YouTube-centered summary workflow. |
| AI path | Hosted Free or Your own AI key with direct from your browser provider requests. | Server-proxied summary workflow. |
| Exports | Markdown, PDF, DOCX, JSON, and ZIP export paths. | Video-summary focused output. |
Output fit
Anya watches a conference talk on YouTube, then needs to summarize the speaker's linked PDF paper and the cited research article for a follow-up brief. Same research thread, three source types.
What Reduz produces
- YouTube transcript summary with clickable timestamps — same in-tab flow as Glasp, no signup required.
- PDF paper summarized from the open Chrome tab without uploading the file anywhere.
- Research article summarized inline using the same extension and the same provider key.
- All three summaries saved to local storage history, searchable later, exportable.
- BYOK direct from your browser to Anthropic Claude or OpenAI when you bring your own AI key, no Reduz account.
What Glasp YouTube Summary produces
- YouTube transcript summary with model choice (ChatGPT, Claude, Gemini, Mistral) — fast, no signup.
- No PDF support in the extension: Anya needs a second tool for the paper.
- No article support: a third tool or copy-paste into a chat interface.
- No local-extension history that survives reinstalls — the Glasp web app adds highlighting but is a separate product.
- Free for the YouTube path; Glasp web app upsells highlighting and learning workflows.
Privacy and architecture
No-signup YouTube relay vs no-signup direct from your browser BYOK
Glasp YouTube Summary's no-signup default is genuinely good for privacy approach compared with most YouTube summarizers — but the transcript still goes through Glasp's backend to the model you select. The Glasp ecosystem (separate web app) encourages public highlighting and a learning-network profile, which is opt-in but worth knowing if you only want the extension. Reduz preserves the no-signup default when you bring your own AI key and goes further: in Your own AI key, source text goes direct from your browser from your tab to the AI provider you chose using your own API key, with no Reduz server in the middle and no Reduz account required. Hosted Free is a separate mode (100 monthly credits, installation identifier for quota only, no card). Summary history is in a your device on your device; optional zero-knowledge encrypted cloud backup is on-device encrypted before upload. click-only permission, no analytics, no telemetry.
Frequently asked questions
Does Reduz require signup the way Glasp's web app does?
No. Reduz bring your own AI key works without any Reduz account — install, paste your AI provider API key, summarize. A Reduz account is only needed for Hosted Free credit tracking (separate from BYOK) and optional encrypted cloud backup.
Can I use my own ChatGPT or Claude key with Reduz like Glasp's model picker?
Yes — and the distinction matters. Glasp's model picker chooses which model Glasp's backend uses; the request still routes through Glasp. Reduz bring your own AI key uses your own API key for OpenAI, Anthropic, Google Gemini, DeepSeek, or xAI Grok, and the request goes direct from your browser to the provider with no Reduz server in the middle.
Does Reduz handle YouTube as well as Glasp?
Reduz reads YouTube transcripts the same way (extension reads the active video) and supports timestamps, transcript export, and saved Moments. Glasp's YouTube-only focus produces a polished panel that some users prefer for video-only workflows. Reduz adds multi-source coverage and local history on top.
Why compare Reduz with a YouTube-only summary tool?
Many Reduz users come from a YouTube-only summarizer when their workflow expands to PDFs, articles, or webpages. The compare page documents what changes in that transition — the YouTube workflow itself stays familiar, more sources get covered, and BYOK becomes a default option.
Is Reduz free?
Yes. Reduz includes 100 free credits a month. Using your own AI key removes the credit limit.
Do I need an account?
Not when you use your own AI key. An account is only needed for free credits, paid plans, or cloud backup.
Where is my data stored?
Summary history is stored in your browser. Cloud backup is opt-in and encrypted on your device before upload.
Which AI providers does Reduz support?
Reduz supports OpenAI, Anthropic Claude, Google Gemini, DeepSeek, and xAI Grok. You can also use free credits without setting up an AI account.