How to summarize a long text with AI (step by step in Sintesy)

You have a long text in front of you on screen. An article, a report, a technical document, a transcript someone sent you. You want the essentials — and the almost automatic answer is to open ChatGPT and paste.

It works. A decent summary comes out in 30 seconds. The problem is the next day: the summary has become just one more conversation in your history, with no clear title, no structure, and no connection to anything else you’ve studied or decided. To find it again, you scroll up through the chat — or it’s simply gone.

This post shows the alternative path: paste (or type) the text once into Sintesy and get a structured summary, mind map, and checklist — organized, named, and searchable later. A real step-by-step, based on the flow that already exists in the product.

What the “Create note” flow is

Inside Sintesy, the New menu has an option called Create note. It opens a blank text editor — with formatting for headings, lists, and highlights.

The idea is simple: the note is your input text. You paste the content (or write from scratch, or dictate your ideas). When you click generate, Sintesy processes that text and returns an organized synthesis — the same structure it creates from audio, meetings, and videos.

In practice, it’s “paste into ChatGPT” with three differences:

1. The output isn’t a loose paragraph. You get a summary with headings, a mind map, and a checklist — each one in its own tab.
2. The material stays saved. The note becomes an item in your knowledge base, with a name, a folder, and search.
3. You can talk to the text later. Sintesy’s chat answers questions about the material, without you having to paste anything again.

Step by step: from long text to organized summary

1. Open the “New” menu and choose “Create note”

On the dashboard, the New button opens the list of content types. Choose Create note. This creates a blank note and opens the editor.

2. Paste or write the text

Paste the long text into the editor. If you want, tidy it up first: a title at the top, sections separated. It’s not required — Sintesy handles the structure on its own — but a somewhat organized text produces a cleaner synthesis.

Practical tip: if the text came from a PDF or a website, you can paste only the parts that interest you. The note is yours — edit it freely before generating.

3. Click generate

With the text in place, trigger the generation. Sintesy processes the content and creates the synthesis — in seconds, not minutes. You can follow the status, and when it finishes, the material opens on the synthesis page.

4. Navigate the synthesis tabs

Depending on the content, you get:

• Summary — the condensed text with headings and sections, ready to reread or export.
• Transcription — the original text preserved, so you can check any detail.
• Mind map — the structure of the content in visual nodes, to understand the hierarchy of the ideas at a glance.
• Checklist — the actionable points of the text, in boxes you tick off as you execute.

5. Organize and consult later

The synthesis lives in your knowledge base. From there on:

• Rename and organize into folders — “Articles read”, “Projects”, “Study”.
• Pin the syntheses you consult every week.
• Ask the chat — “which risks were flagged?”, “summarize section 3” — without pasting the text again.
• Generate a new summary if you want a different version of the structuring.

When using text makes sense (and when it doesn’t)

The note flow shines when the material is already born as text: articles, reports, transcripts you already have, course handouts, long emails.

If the material is still audio or video, don’t transcribe it by hand first — Sintesy already does that at the input. Paste the YouTube URL directly, import the WhatsApp audio, or record the meeting with the bot. The note is the entry point for text that’s already ready.

Free or Pro?

On the free plan you create notes and generate syntheses as usual — the content preview is limited. Pro (R$39,90/month, or R$12,49/month on the annual plan) unlocks the full content, PDF/DOCX export, and sharing by link. To test the flow, free is enough.

Frequently asked questions

Can you summarize a very long text, thousands of words? Yes. Paste the entire text into the note. If the text is extremely long, splitting it into two notes (by chapter or section) produces cleaner summaries.

Is the original text lost after generating the summary? No. The transcription tab preserves the original text of the note, and you can generate a new summary as many times as you want.

Can I export the summary? Yes. On Pro, the synthesis exports as PDF or DOCX — useful for handing the material over to someone else.

What if I got the text wrong after generating? You go back to the note, fix it, and generate a new summary. The synthesis is regenerated from the current text.

Conclusion

Summarizing text with AI isn’t the problem — keeping the result is. Pasting into ChatGPT delivers today’s summary; Sintesy’s note flow delivers today’s summary, mind map, and checklist organized in your knowledge base, ready to consult and talk about tomorrow.

Open the New menu on the dashboard, choose Create note, and paste the text that’s been waiting for weeks. In seconds you have the essentials — and you keep having it afterwards.