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What it can do
Hand over the long job. It works to the end.
An AI agent for long documents: reads everything, plans, splits the work, checks itself, and shows you where it is.
Work with long documents
Example: check every citation in a thesis, build the reference list
What do you do?
- Read the outline, count 59 headings
- Find (Author, year): 85 citations
- Check chapters 1–2 (citations 1–40)
- Check chapter 3 (citations 41–85)
- Suggest fixes for wrong sources
- Build the APA 7 reference list
Real interface from LOSAN chat
Click a citation, see the exact sentence in the source
Example: an essay citing a 127-page textbook: click "p. 29" and the PDF opens on that page, the quoted sentence highlighted
Check every source in one click instead of flipping pages.
Click a citation ↓
Each outcome of an experiment is assigned a number, by definition "a quantity that takes one and only one value with a definite probability"
Customer arrivals per hour can be modelled with a Poisson distribution, where λ is the average number of customers
2.1 Random variables
Definition 2.1. A random variable is a quantity that, in each outcome of an experiment, takes one and only one of its possible values, each with a definite probability.
Edit without breaking the format
Example: revise a 40-page report, the Word file keeps its contents table, tables and footnotes
The project has completed approximately around 80% of the total workload as per the plan that was set out.
The project has completed 80% of the planned workload.
✓ Kept: contents table · 6 tables · 23 footnotes
Write from scratch, with structure
Example: essays, business plans, service contracts: a short form, an outline you approve, then the draft
- 1. Executive summary
- 2. Market analysis
- 2.1 Target customers
- 2.2 Competitors within 1 km
- 3. Financial plan
- 4. Risks
Understand a whole project
Coming soonExample: files that reference each other, and which documents contradict which
Vietnamese law lookup
Coming soonExample: point straight to the article in force, click to open the original text
Why it can handle long work
Plans first
Reads the outline, splits the job into steps, writes them in its notebook. You see which step it is on.
Splits the work
Long parts go to sub-agents reading in parallel; only the findings come back.
Doesn't lose track
However long the chat gets, the notebook keeps what is done and what is left.
Pick the model right in chat: MiniMax, DeepSeek, Qwen, Claude, GPT, Gemini.
Get more done with AI
Try AI writing, chat & learning — no credit card needed
- 1 million token context window — feed entire books, theses & long documents
- Exam season: 1 exam a day · 1 practice or mock attempt a day
- Chat with basic model
- Draft emails, posts & short content
- Scan & extract up to 20 pages per PDF (OCR)
- Create unlimited projects
- Access Character & Prompt library
Quick Q&A, studying & workflows up to 10 pages (12h reset, basic model)
- Write long-form: blog posts, essays & full translations (5-10 pages)
- 1 million token context window — feed entire books, theses & long documents
- Everything in Free
- Image generation & visualisation: diagrams, charts, illustrations — within your plan allowance
- Unlock all workflows & apps
- Scan & extract up to 100 pages per PDF (OCR)
- Generate meeting minutes from audio or live recording
- Exam season: exams up to 50 questions · files up to 100 pages, incl. photos and scans · 20 practice or mock attempts a day · remembers mistakes, similar questions
For professionals & power users — large documents, top models, priority speed
- Write & process in-depth documents: theses, reports, contracts, technical specs
- 1 million token context window — process entire books, contracts & technical documents
- Everything in Free
- Image generation & visualisation: diagrams, charts, illustrations — high resolution, larger allowance
- Unlock all workflows & apps, incl. meeting minutes from audio
- Access to the most powerful AI models
- Scan & extract up to 500 pages per PDF (OCR)
- Priority speed during peak hours
- Exam season: exams of any length, no question cap · files up to 500 pages, the whole syllabus · unlimited practice and mock attempts · remembers mistakes, similar questions
*Usage limits apply. Prices and plans are subject to change at Troisinh's discretion.