# QuizPilot

Canonical page: https://quizpilot.link/en/

QuizPilot is a Chrome extension: an AI study helper for practice questions on the web. On a practice, homework or self-test page it reads the questions, suggests an answer with a confidence score for each, and then ticks or fills them in (one-click undo, never submits) or only marks them on the page.

## What it does
- Question types: single choice, multiple answer, true/false, fill-in, short answer, and questions with pictures. When the page text is incomplete or a question is an image or canvas, a screenshot goes to a multimodal model.
- Sites: not tied to particular websites. It infers questions, options and answer controls from the page structure, so most online practice, question bank and quiz pages work as they are. An unusual layout can be learned once from a screenshot.
- Ways to run it: "Solve this page" (fills answers, one-click undo), "Assist" (only marks the suggested answer), "Continuous" (one-question-per-page quizzes: answers and moves on, stops at the last question), select an area, right-click menu, keyboard shortcuts (Alt+Shift+1–4; Control+Shift on Mac).
- Languages: English, Chinese, Japanese and Korean interface.

## Free mode and Paid mode
- Free mode: bring your own model API key (Jev via OpenRouter or TypeSafe, or any OpenAI-compatible service, local models included). The key stays in the browser; questions go straight to that provider, never through QuizPilot's servers.
- Paid mode: sign in with email or Google and pay per answered question. Two answer modes, switchable in the popup:
  - Fast (each answered question counts as 1): multiple-choice and true/false questions go to TypeSafe's Jev decision model; fill-in, short answer and picture questions to a multimodal model. Optional low-confidence review re-checks unsure answers.
  - Accurate (each answered question counts as 10): every question goes to an advanced AI model that reasons before answering. Slower, more accurate on hard multi-step questions.
- Details: [Pricing](https://quizpilot.link/pricing.md)

## Measured accuracy
On the developer's own 30 multi-step reasoning questions, Fast got 26–27 right and Accurate all 30. On 60 basic questions Jev got 59. Every true/false and multiple-select answer from Jev was right; its misses were single-choice questions needing multi-step arithmetic. Full write-up: [How we use Jev](https://quizpilot.link/blog/jev.md).

## Privacy
The extension reads the current page only when the user clicks its button, uses the right-click menu or presses a shortcut, never in the background. Paid mode passes questions through QuizPilot's server to the model and does not keep questions, screenshots or answers. Policy: https://quizpilot.link/en/privacy

## Requirements and install
- Desktop Google Chrome 116 or later on Windows, macOS or Linux.
- Install: [Chrome Web Store](https://chromewebstore.google.com/detail/quizpilot/gloldlbaimjdhcpgpcdcihcekfclgeha)

## Open source
The extension and model adapters are open source under the AGPL-3.0: https://github.com/jelly-ham/quizpilot-extension. The Paid mode backend is not.

## Responsible use
A study aid for practice, homework and self-tests where such tools are allowed. Not for exams or assessments that prohibit them; it never submits answers.

## More
- [Pricing](https://quizpilot.link/pricing.md)
- [FAQ](https://quizpilot.link/faq.md)
- [中文介绍](https://quizpilot.link/zh.md)
- [How we use Jev (benchmark)](https://quizpilot.link/blog/jev.md)
- Contact: support@quizpilot.link