// Brevitas — three signature animations // A: Compression Sequence · B: Pipeline Reduction · C: Thesis Sequence const { useState: useStateA, useEffect: useEffectA, useRef: useRefA, useCallback: useCallbackA } = React; // ============================================================ // A — Compression Sequence // ============================================================ // Natural paragraph → compressed form. Kept words highlight; dropped words ghost out. const COMPRESSION_WORDS = [ // [word, kept] ['The', false], ['architecture', true], ['should', false], ['follow', false], ['a', false], ['three-layer', true], ['pattern', true], ['comprising', false], ['a', false], ['presentation', true], ['layer,', false], ['a', false], ['business', true], ['logic', true], ['layer,', false], ['and', false], ['a', false], ['persistence', true], ['layer.', false], ['The', false], ['presentation', true], ['layer', false], ['handles', false], ['user-facing', true], ['concerns', false], ['and', false], ['renders', false], ['the', false], ['UI', true], ['based', false], ['on', false], ['props', false], ['passed', false], ['down', false], ['from', false], ['the', false], ['business', true], ['logic', true], ['layer.', false], ['The', false], ['business', false], ['logic', false], ['layer', false], ['encapsulates', false], ['domain', true], ['operations', true], ['and', false], ['should', false], ['be', false], ['written', false], ['in', false], ['pure', true], ['functions', true], ['where', false], ['possible.', false], ['The', false], ['persistence', true], ['layer', false], ['mediates', false], ['reads', true], ['and', false], ['writes', true], ['against', false], ['the', false], ['database.', true], ]; function CompressionSequence() { const [phase, setPhase] = useStateA('idle'); // idle, typing, hold, dropout, done const [visibleCount, setVisibleCount] = useStateA(0); const [tokens, setTokens] = useStateA(1000); const [key, setKey] = useStateA(0); const [ref, inView] = useInView({ threshold: 0.35 }); const reduced = useReducedMotion(); useEffectA(() => { if (!inView) return; if (reduced) { setPhase('done'); setVisibleCount(COMPRESSION_WORDS.length); setTokens(300); return; } let timers = []; setPhase('typing'); // Type all words in quickly (800ms total) const total = COMPRESSION_WORDS.length; for (let i = 1; i <= total; i++) { timers.push(setTimeout(() => setVisibleCount(i), (i / total) * 900 + 100)); } timers.push(setTimeout(() => setPhase('hold'), 1200)); timers.push(setTimeout(() => setPhase('dropout'), 2000)); // Animate token counter down timers.push(setTimeout(() => { const t0 = performance.now(); const tick = (now) => { const p = Math.min(1, (now - t0) / 1400); const eased = p < 0.5 ? 2*p*p : 1 - Math.pow(-2*p+2,2)/2; setTokens(Math.round(1000 - 700 * eased)); if (p < 1) requestAnimationFrame(tick); }; requestAnimationFrame(tick); }, 2000)); timers.push(setTimeout(() => setPhase('done'), 3500)); return () => timers.forEach(clearTimeout); }, [inView, key, reduced]); const replay = () => { setVisibleCount(0); setTokens(1000); setPhase('idle'); setKey(k => k+1); }; const isAfter = phase === 'dropout' || phase === 'done'; return (
{isAfter ? 'COMPRESSED' : 'AGENT 1 OUTPUT'}
{tokens.toLocaleString()} tokens
{isAfter && (
−70%
)}
{COMPRESSION_WORDS.map(([w, kept], i) => { const visible = i < visibleCount; const dropout = isAfter && !kept; const highlight = isAfter && kept; return ( {w} ); })}
inter-agent.compress()
); } // ============================================================ // B — Pipeline Reduction (THE hero animation) // ============================================================ function PipelineReduction({ compact = false, loop = true }) { const [ref, inView] = useInView({ threshold: 0.25 }); const reduced = useReducedMotion(); const [stage, setStage] = useStateA(0); // stages: 0 idle, 1 A1 active, 2 after A1 arrows, 3 A2 active + arrows, 4 A3 active, 5 totals, 6 resolution const [baselineTokens, setBaselineTokens] = useStateA(0); const [optimizedTokens, setOptimizedTokens] = useStateA(0); const [resolveIn, setResolveIn] = useStateA(false); const [statA, setStatA] = useStateA(0); const [statB, setStatB] = useStateA(0); const [statC, setStatC] = useStateA(0); const [cycle, setCycle] = useStateA(0); useEffectA(() => { if (!inView) return; if (reduced) { setStage(5); setBaselineTokens(2924); setOptimizedTokens(1188); setResolveIn(true); setStatA(59.4); setStatB(46.9); setStatC(99); return; } let timers = []; setStage(0); setBaselineTokens(0); setOptimizedTokens(0); setResolveIn(false); setStatA(0); setStatB(0); setStatC(0); timers.push(setTimeout(() => setStage(1), 500)); timers.push(setTimeout(() => { setStage(2); // tick tokens const t0 = performance.now(); const tick = (now) => { const p = Math.min(1, (now - t0) / 900); setBaselineTokens(Math.round(1000 * p)); setOptimizedTokens(Math.round(300 * p)); if (p < 1) requestAnimationFrame(tick); }; requestAnimationFrame(tick); }, 900)); timers.push(setTimeout(() => { setStage(3); const t0 = performance.now(); const tick = (now) => { const p = Math.min(1, (now - t0) / 900); setBaselineTokens(Math.round(1000 + 500 * p)); setOptimizedTokens(Math.round(300 + 450 * p)); if (p < 1) requestAnimationFrame(tick); }; requestAnimationFrame(tick); }, 1800)); timers.push(setTimeout(() => { setStage(4); const t0 = performance.now(); const tick = (now) => { const p = Math.min(1, (now - t0) / 900); setBaselineTokens(Math.round(1500 + 1424 * p)); setOptimizedTokens(Math.round(750 + 438 * p)); if (p < 1) requestAnimationFrame(tick); }; requestAnimationFrame(tick); }, 2700)); timers.push(setTimeout(() => setStage(5), 3600)); timers.push(setTimeout(() => { setResolveIn(true); const t0 = performance.now(); const tick = (now) => { const p = Math.min(1, (now - t0) / 900); const e = p < 0.5 ? 2*p*p : 1 - Math.pow(-2*p+2,2)/2; setStatA(+(59.4 * e).toFixed(1)); setStatB(+(46.9 * e).toFixed(1)); setStatC(Math.round(99 * e)); if (p < 1) requestAnimationFrame(tick); }; requestAnimationFrame(tick); }, 4400)); if (loop) { timers.push(setTimeout(() => setCycle(c => c+1), 12000)); } return () => timers.forEach(clearTimeout); }, [inView, cycle, reduced, loop]); const stageActive = (n) => stage >= n; const AgentBox = ({ label, sublabel, active, side }) => (
{sublabel}
{label}
); const BrevitasBox = ({ visible, active }) => (
BREVITAS LAYER
compress · reference · delta
); // Arrow: side 'left' is oxblood/thick, 'right' is signal/thin const Arrow = ({ side, thick = false, visible, label }) => { const color = side === 'left' ? 'var(--oxblood)' : 'var(--signal)'; const width = side === 'left' ? (thick ? 6 : 3) : 2; return (
▼
{label && (
{label}
)}
); }; return (
{/* Main split */}
{/* LEFT: baseline */}
BASELINE PIPELINE
how every team builds this today
= 1 && stage <= 2)} /> = 2} visible={stage >= 2} label={stage >= 2 ? '1,000 tok' : ''} /> = 3} visible={stage >= 3} label={stage >= 3 ? '1,500 tok' : ''} />
CUMULATIVE
▶ {baselineTokens.toLocaleString()} tokens
{/* Divider */}
{/* RIGHT: with brevitas */}
WITH BREVITAS
the same task, optimized
= 2} label={stage >= 2 ? '300 tok · compressed' : ''} /> = 2} active={stage === 2} /> = 2} /> = 3} label={stage >= 3 ? '450 tok · delta' : ''} /> = 3} active={stage === 3} /> = 3} />
CUMULATIVE
▶ {optimizedTokens.toLocaleString()} tokens
{/* Resolution frame */} {resolveIn && !compact && (
–{statA.toFixed(1)}%
tokens saved
–{statB.toFixed(1)}%
cost saved
{statC}%
quality parity
AgentBench task · real API calls · real token counts
)}
); } // ============================================================ // C — Thesis Sequence // ============================================================ function ThesisSequence() { const [ref, inView] = useInView({ threshold: 0.3 }); const reduced = useReducedMotion(); const [s, setS] = useStateA(0); // 0..5 useEffectA(() => { if (!inView) return; if (reduced) { setS(5); return; } const ts = [ setTimeout(() => setS(1), 500), setTimeout(() => setS(2), 1400), setTimeout(() => setS(3), 2500), setTimeout(() => setS(4), 3600), setTimeout(() => setS(5), 4200), ]; return () => ts.forEach(clearTimeout); }, [inView, reduced]); const Line = ({ visible, children, caption, captionVisible, emphasis = false }) => (
{children}
{caption && (
{caption}
)}
); return (
= 1 ? 1 : 0, transition: 'opacity 400ms', marginBottom: 'clamp(48px, 7vh, 80px)', display: 'flex', flexDirection: 'column', alignItems: 'center', }}>
THE STATE OF THE STACK — 2026
= 1} captionVisible={s >= 1} caption="// gpt-4.turbo · one model · one call"> The 2023 default was a single prompt. = 2} captionVisible={s >= 2} caption="// orchestrators · 5 to 50 inter-agent calls per task"> The 2026 default is a pipeline of agents.
= 3 ? 1 : 0, transition: 'opacity 400ms', marginBottom: 22, fontSize: 13, }} > ────────── and no one optimized ──────────
= 4 ? 1 : 0, transform: s >= 4 ? 'translateY(0)' : 'translateY(16px)', transition: 'opacity 900ms var(--ease-out-soft), transform 900ms var(--ease-out-soft)', color: 'var(--fg)', textWrap: 'balance', }} > what flows between them.
= 4 ? 1 : 0, transition: 'opacity 400ms 400ms', }} > // until now
= 5 ? 1 : 0, transition: 'opacity 500ms', marginTop: 24, }}> See how →
); } Object.assign(window, { CompressionSequence, PipelineReduction, ThesisSequence, });