# Ask AI

> Ask AI about one paper or the lab's whole repository, with citations down to the section; private conversation history per person, rate limits and a cost cap.

Ask AI is a chat widget available on every page. Ask about one specific paper or the lab's whole repository; answers come with citations so you can verify them. Every answer is labelled as AI and is only a suggestion.

## Open Ask AI

- `⌘J` / `Ctrl+J` on any page, **Hỏi AI** (Ask AI) in the sidebar, or the round button at the bottom right.
- The **Hỏi AI về bài này** (Ask AI about this paper) button in the Documents tab opens the widget scoped to the paper you are viewing.
- On a phone the widget opens full screen. The **Phóng to thành trang** (Expand to page) button opens the conversation at `/app/ask/<id>`.

![Ask AI widget opened from a work page, with suggested questions](../../../../assets/shots/hoi-ai-mo.webp)

## Scope

The **Phạm vi hỏi** (Scope) control in the composer:

| Scope | Searches |
| --- | --- |
| **Bài này** (This paper) | The full text of the work you are viewing (for example `ISL-2026-0259 · R0`) |
| **Cả kho** (Whole repository) | The works you are allowed to see; permissions are filtered **before** searching, so the AI never sees papers you cannot access |

Answers carry citation chips such as `§4.1`; click one to open that work in the work window.

![An answer with section citations](../../../../assets/shots/hoi-ai.webp)

## Conversations

- Conversations are **private to you**: not even the lab head can read someone else's. The list on the left supports search, rename and delete; titles are set from the first question.
- Answers stream in; **Dừng** (Stop) keeps what has arrived. Each answer has **Sao chép** (Copy) and **Tạo lại** (Regenerate); the last question has **Sửa câu hỏi** (Edit question).
- A conversation scoped to one paper is hidden if you no longer have access to that work.

![Ask AI page with the conversation list](../../../../assets/shots/hoi-ai-trang.webp)

## Limits

- A paper must be **indexed** first: this runs automatically once the version has its required files. Right after an upload, wait for the worker to finish before asking.
- AI must be configured in [Settings → AI](/en/huong-dan/cai-dat/#ai). If not, you get `ai_not_configured`; when the cost cap is reached you get `ai_budget_exceeded` right in the conversation, never a made-up answer.
- Each account can ask at most **20 questions per hour**.