AI Summarizer

Sassbook is a suite of AI writing tools built around a text summarizer, with an AI writer, a story writer, a paraphraser and a headline generator sharing the same account and interface. The summarizer produces abstractive summaries, rewriting the source in new wording the way a person would, rather than only lifting sentences out of it. Text can be pasted in or uploaded as a file, and the summarizer and paraphraser both accept documents. It suits students, researchers, editors and marketing teams who need to condense long material, rephrase it, or produce several variations of a line quickly. Capacity is set by plan rather than by a daily quota, and none of the tiers limits how many summaries you can run per day. The free tier handles up to 5,000 words, around ten pages, per summary or paraphrase. Paid tiers raise that to 10,000 words, around twenty pages, add control over generation length for the writer, and return more candidate variants per run, up to ten for the headline generator and the paraphraser. Four plans are published in the application. Free costs nothing and covers a basic feature set. Standard is $39 per month, or $390 per year, which works out at $32.50 per month on annual billing, and includes API credit. Premium is $59 per month, or $590 per year, $49.16 per month on annual billing, and adds the largest content limits and full control over generation. A Developer API plan is $25 per month for standard access to the Sassbook API. Note that the site renders entirely in the browser, so the pricing page shows nothing without JavaScript enabled.