Gyrall drafts cards and board-style questions from your lectures, PDFs, and the deck you’ve carried for years — then a second model family re-answers every item blind and drops whatever it can’t verify. Underneath: real FSRS-5, your .apkg progress intact.
No credit card · ~300 AI cards a month, free
Fig. 1 · Every piece is there. Structure is the only tell.
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Making the cards became the degree.
Ask a med student where the week went and the honest answer is formatting. Retyping a lecture into cards. Hunting the version of a fact that’s actually high-yield. And the AI generators that promised to help invent facts, butcher the neuroanatomy, and miss the clinical point. The material isn’t missing. It’s scattered, and none of it talks to each other.
Fig. 1 · Every piece is there. Structure is the only tell.
Bring your material.
Text, a PDF, a diagram, a YouTube lecture. Or the Anki (.apkg) deck you already trust: media, cloze, and :: tags intact.
Cards drafted from your sources.
AI drafts cards in every format you use — basic, reverse, cloze, image-occlusion — each auto-sorted into a :: tag hierarchy and carrying a link back to the passage it came from.
Cards cite their source passage: click the citation and the exact sentence lights up in the PDF you uploaded, so you check the claim in one tap. And from there, everything you keep drops into a real FSRS-5 schedule — study, cram, drill MCQs, or listen; Gyrall decides what’s due and when.
Which β-blockers have trial-proven mortality benefit in chronic heart failure?
Carvedilol · bisoprolol · metoprolol succinate
Fig. 2 · A card and its receipt. Tap Source; the sentence lights up in the PDF you uploaded.
Drafted by one model. Examined by another family.
A fast model drafts cards and board-style questions from your material, each pinned to the sentence it came from. An independent model family then re-answers every question, blind, before it sees the draft’s key, and checks every card against its quoted source. Every item gets a verdict; flagged items go up to a stronger reviewer, and whatever can’t be saved is dropped, not shipped.
Runs on Focus Flow and Vignette Forge: every card and question, item by item.
- 01Frank–Starling law · preload and stroke volumeverified
- 02Optimal sarcomere length ≈ 2.2 μmverified
- 03Actin–myosin cross-bridge overlapverified
- 04End-diastolic volume as preloadverified
- 05Ventricular output matched beat-to-beatflagged → rewritten
- 06Series coupling of the two ventriclesverified
- 07Fluid bolus and transient stroke volumeverified
- 08Descending limb in the failing ventricleverified
- 09Intrinsic autoregulation of the heartverified
- 10Contractility held constant on the curvedropped
- 11Venous return sets the pumped volumeverified
- 12Preload stretch vs. inotropyverified
Fig. 3 · The verification log. What fails is dropped, not shipped. Counts are illustrative.
The schedule survives exam week.
Genuine FSRS-5 per card — stability, difficulty, power-law retrievability — and your .apkg imports with media, cloze, :: tags, and progress intact. The part that matters is what doesn’t break: cram the night before and tomorrow’s queue stays sane. Spread a 900-card backlog and your retention numbers don’t move, because moving a due date never rewrites your review history.
Your review queue, day by day.
Steady state. Stress it below.
Fig. 4 · Stress it. The schedule holds. Real FSRS-5 underneath.
Two ways to prove you actually know it.
Read a chunk. Prove it. Move on.
Slice a PDF into ~600-word chunks; read, drill the cards it just made, and answer MCQs on the last chunk while it’s warm. Coverage climbs; every card you keep lands in a real FSRS deck.
Banks that explain every wrong answer.
A board-style MCQ bank for any deck on a frontier model. Each question says why the right answer is right and each distractor wrong — a separate bank that never touches your schedule.
Solved by shape
Same pieces. Nothing added. Only arranged — sourced, cross-examined, and dropped into a schedule that holds.
Also in the boxocclusionhierarchical :: tagsstudy-by-tagcram & backlog modesAudio Loop (11 voices)analytics + AI coachunlisted & published sharingExplore
Free is the product. Pro is the power move.
Free
Everything to build the habit.
- Unlimited decks & cards
- The full FSRS-5 engine
- Anki (.apkg) import
- Analytics + AI coach, weekly
- Unlisted & published sharing
- ~300 AI cards a month
Gyrall Pro
Everything in Free, plus:
or $249/yr, save $99
- Focus Flow: read-and-prove sessions
- Vignette Forge: board-style MCQ banks
- 7,000 AI credits a month (~$7 of model cost)
- AI coach, daily
- Audio Loop & occlusion at Pro volume
The first 100 monthly members pay $19/mo; the first 50 annual pay $149/yr, locked for as long as you stay subscribed.
No free trial. The free tier isn’t a teaser: it’s the whole product, minus the Pro power tools.
Instant access after signup · Cancel anytime · Secure checkout via Dodo Payments · Refund policy
Bring a PDF. Import a deck. Watch it take shape.
No card. No trial. ~300 AI cards a month, on the house.