Free trial
5 days free with a card on file and $0 charged today. Cancelling before day 5 costs nothing, and the trial is described as the full product. A first feed can also be built free with no account.
Learn moreSummary Box
An agent that reads your feeds as you and hands back what matters.
Beginner
What is Summary Box?
Summary Box is an AI summarizer tool. A Chrome extension that sends an agent through your logged-in feeds and returns a ranked digest with a reason on every card. It covers YouTube, Reddit, X, LinkedIn, Hacker News and Substack, learns preferences with visible receipts, and adds a concierge for research with clickable citations.
Summary Box is a browser-based agent that reads the feeds you already follow and returns a short digest of what is worth opening. It works inside a Chrome window on your own machine, logged in with your own sessions, so it reaches YouTube, Reddit, X, LinkedIn, Hacker News and Substack content that sits behind a login. Cloud summarizers stall at that wall; this one does not, because it never leaves your browser. In practice you click the extension icon and a panel slides out. Each card carries a one-line reason for why it made the cut, whether the item is original testing, a comment-backed consensus or a repeat of a claim you already read. A roundup stitches the same story together across sources, so you can drop the rehash without losing the thread. A concierge layer proposes errands scoped from your profile and feeds, and you can highlight any page or link, right click, and ask for a compressed answer with citations that light up their source. The trial build includes article and PDF summaries and YouTube breakdowns with timestamps. Personalization is the piece that separates it from a generic news reader. The agent learns from what you read, skip, save, ask and revisit, and every inference shows its receipt, so a wrong assumption can be corrected in one place and the digest, openers and chat all adjust. Banking and brokerage tabs are permanently off-limits, and the agent window is visible and labeled while it runs. It is aimed at people who follow more sources than they can realistically read: researchers, newsletter writers, analysts and anyone whose useful feeds are locked behind accounts. The closest alternatives are AI browser assistants and read-later summarizers, which tend to handle single pages rather than a ranked multi-source digest with stated reasons. Pricing is one plan, $12 monthly or $9 monthly billed yearly, with a 5-day trial and a free first feed that needs no account.
How do you use Summary Box?
1Install the Chrome extension
Add Summary Box from the Chrome Web Store. The first feed can be built without creating an account, which makes it easy to judge output before paying.2Build your first feed
Point the agent at the platforms you actually use, such as YouTube, Reddit, X, LinkedIn, Hacker News or Substack. The agent opens them in a window on your machine, signed in as you.3Read the digest
Click the icon and review the cards. Each one carries a short reason explaining why it was flagged as worth your time, so you can accept or dismiss the judgment.4Correct the profile
Open the personal profile panel and review what the agent has inferred. Every preference lists its source, and editing one fact sharpens the digest, openers and chat together.5Try a concierge errand
Pick a suggested errand or ask your own question. Highlight text on any page and right click to research it, with citations that link back to the source.6Start the trial if it earns it
The 5-day trial puts a card on file at $0 today and converts to the plan unless cancelled before day 5. Billing is monthly or yearly at $9 per month billed annually.
Pros and cons
Pros
- Reads feeds behind logins because the agent runs in your own browser with your sessionsAI
- Every digest card states a one-line reason, and each personalization inference shows its sourceAI
- Covers six named platforms at once and deliberately caps how much any single one contributesAI
- Banking and brokerage sites are permanently excluded, and agent windows stay visible and labeledAI
- Free first feed with no account, plus a 5-day trial described as the full productAI
Cons
- No Firefox or Safari build listed, so the tool is tied to Chrome and Chromium browsersAI
- One flat plan with no team or multi-seat option and no API for piping digests elsewhereAI
- Reading happens through your logged-in sessions, so the agent's access is broad even with financial sites blockedAI
- Quality depends on how much history you feed it; a fresh profile will produce generic rankings at firstAI
- Runs on your machine and opens feeds side by side, which costs local resources compared with cloud summarizersAI
How much does Summary Box cost?
Pricing
One plan only: $12 per month, or $9 per month when billed $108 yearly (three months free). The plan includes the digest, ghost browser, openers, topic feeds, chat with receipts and priority support. A 5-day trial starts at $0 today with a card on file.
Learn moreSupport
Priority support is listed as part of the single paid plan. The homepage does not describe support channels or response times.
Integrations
Works with YouTube, Reddit, X, LinkedIn, Hacker News and Substack through your existing logged-in browser sessions. No separate account connections are needed.
Features
An agent reads your logged-in feeds across six platforms and returns a ranked digest with a one-line reason per card, plus cross-source roundups and topic feeds. Also includes a concierge with pre-scoped errands, right-click research on any selection, page, article and PDF summaries, YouTube breakdowns with timestamps, receipts on answers, adjustable agent windows and permanently blocked financial sites.
Frequently asked questions about Summary Box
How much does Summary Box cost?
One plan only: $12 per month, or $9 per month when billed $108 yearly (three months free). The plan includes the digest, ghost browser, openers, topic feeds, chat with receipts and priority support. A 5-day trial starts at $0 today with a card on file.Does Summary Box offer a free trial?
5 days free with a card on file and $0 charged today. Cancelling before day 5 costs nothing, and the trial is described as the full product. A first feed can also be built free with no account.How do you use Summary Box?
The walkthrough on this page covers 6 steps: 1. Install the Chrome extension 2. Build your first feed 3. Read the digest 4. Correct the profile 5. Try a concierge errand 6. Start the trial if it earns it.What platforms does Summary Box support?
Summary Box is available on Browser extension.What does Summary Box integrate with?
Works with YouTube, Reddit, X, LinkedIn, Hacker News and Substack through your existing logged-in browser sessions. No separate account connections are needed.What are the limitations of Summary Box?
No Firefox or Safari build listed, so the tool is tied to Chrome and Chromium browsers. One flat plan with no team or multi-seat option and no API for piping digests elsewhere. Reading happens through your logged-in sessions, so the agent's access is broad even with financial sites blocked.
Status
StatusActive
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Added10/21/2026
Platforms
Browser extension
Pricing
FreeFree TrialSubscription
