How to use the next-generation spaced repetition algorithm FSRS on Anki?

L.M.Sherlock · December 30, 2023, 12:52pm

Just follow the tutorial:

open-spaced-repetition/fsrs4anki/blob/main/docs/tutorial.md

中文版请见：[Anki 新算法 FSRS 配置指南](https://zhuanlan.zhihu.com/p/664758200)

# Table of contents
- [The Ultra Short Version](the-ultra-short-version)
- [Step 1: Enable the built-in FSRS Scheduler](#step-1-enable-the-built-in-fsrs-scheduler)
- [Step 2: Configure FSRS settings](#step-2-configure-fsrs-settings)
- [Step 3: Find optimal parameters](#step-3-find-optimal-parameters)
- [Step 4: (optional) Evaluate the parameters](#step-4-optional-evaluate-the-parameters)
- [Step 5: (optional) Compute optimal retention](#step-5-optional-compute-optimal-retention)
- [Step 6: (optional) Custom Scheduling](#step-6-optional-custom-scheduling)
- [FAQ](#faq)

## The Ultra Short Version

Are you busy and have no time to waste? Here's a summary of the guide.

1) Go to deck options and enable FSRS under "Advanced", at the bottom of the deck options window.
2) Ensure that all your learning and re-learning steps are shorter than `1d` and that all steps can be completed on the same day.
3) Click the "Optimize" button under the "Optimize FSRS parameters" section. The optimal parameters will replace the default parameters automatically. Parameters are preset-specific. If an error message pops up, it means you have less than 1000 reviews across all cards that this preset is applied to. In that case, just use the default parameters; it's still better than using the legacy SM-2 algorithm.
4) Choose a value of desired retention: the proportion of cards recalled successfully when they are due. **This is the most important setting in FSRS. Higher retention leads to shorter intervals and more reviews per day.** 80-95% is reasonable, 90% should work fine for most people.

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If the tutorial doesn’t answer your questions, it means it depends on your personal cases.

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How to use the next-generation spaced repetition algorithm FSRS on Anki?

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