"use client"; import { useState, useEffect } from "react"; import { Bar, BarChart, CartesianGrid, ResponsiveContainer, Tooltip, XAxis, YAxis, Legend, LabelList, } from "recharts"; import { BenchmarkResult, Metric } from "./types"; import { calculateStats } from "./utils"; import prettyMs from "pretty-ms"; import Image from "next/image"; import { BENCHMARK_GRID_INTERVAL_SECONDS, BENCHMARK_CHART_HEIGHT_PX, BENCHMARK_BAR_SIZE_PX, BENCHMARK_BAR_GAP_PX, BENCHMARK_ANIMATION_DURATION_MS, BENCHMARK_CONTROL_COLOR, BENCHMARK_TREATMENT_COLOR, BENCHMARK_LIVE_COUNTER_INTERVAL_MS, } from "@/constants"; const formatMetricValue = ( value: number, unit: string, decimals: number = 2, ): string => { if (unit === "$") return `$${value.toFixed(decimals)}`; if (unit === "ms") return `${(value / 1000).toFixed(decimals)}s`; return value.toFixed(decimals); }; interface BenchmarkChartsProps { results: BenchmarkResult[]; } interface CustomTooltipProps { active?: boolean; payload?: Array<{ name: string; value: number; fill: string; payload: { ControlRaw: number; TreatmentRaw: number; unit: string; }; }>; label?: string; } const CustomTooltip = ({ active, payload, label }: CustomTooltipProps) => { if (active && payload && payload.length) { const tooltipData = payload[0].payload; return (

{label}

{payload.map((payloadEntry) => { const isControl = payloadEntry.name === "Control"; const rawValue = isControl ? tooltipData.ControlRaw : tooltipData.TreatmentRaw; const unit = tooltipData.unit; const formattedValue = typeof rawValue === "number" ? formatMetricValue(rawValue, unit) : rawValue; return (

{payloadEntry.name}: {formattedValue} ({payloadEntry.value.toFixed(0)}%)

); })}

); } return null; }; CustomTooltip.displayName = "CustomTooltip"; interface AnimatedBarProps { targetSeconds: number; maxSeconds: number; color: string; label: string; } const AnimatedBar = ({ targetSeconds, maxSeconds, color, label, }: AnimatedBarProps) => { const targetWidth = (targetSeconds / maxSeconds) * 100; const animationDuration = targetSeconds; return (

{label}

); }; AnimatedBar.displayName = "AnimatedBar"; export const BenchmarkChartsTweet = ({ results }: BenchmarkChartsProps) => { const controlResults = results.filter((result) => result.type === "control"); const treatmentResults = results.filter( (result) => result.type === "treatment", ); if (controlResults.length === 0 || treatmentResults.length === 0) { return null; } const controlStats = calculateStats(controlResults); const treatmentStats = calculateStats(treatmentResults); const controlTotalCost = controlResults.reduce( (sum, result) => sum + result.costUsd, 0, ); const treatmentTotalCost = treatmentResults.reduce( (sum, result) => sum + result.costUsd, 0, ); const controlDurationSec = controlStats.avgDuration / 1000; const treatmentDurationSec = treatmentStats.avgDuration / 1000; const maxSeconds = Math.ceil(controlDurationSec / BENCHMARK_GRID_INTERVAL_SECONDS) * BENCHMARK_GRID_INTERVAL_SECONDS; const gridLines = Array.from( { length: maxSeconds / BENCHMARK_GRID_INTERVAL_SECONDS + 1 }, (_, i) => i * BENCHMARK_GRID_INTERVAL_SECONDS, ); const durationSpeedup = ( controlStats.avgDuration / treatmentStats.avgDuration ).toFixed(0); const costChange = Math.abs( ((treatmentTotalCost - controlTotalCost) / controlTotalCost) * 100, ).toFixed(0); return (

{gridLines.map((seconds) => (

))}

Claude Code + React Grab

Claude Code

{gridLines.map((seconds) => ( {seconds}s ))}

Above: avg time for Claude Code to complete 20 UI tasks on a{" "} shadcn/ui {" "} dashboard.{" "} More info .

); }; BenchmarkChartsTweet.displayName = "BenchmarkChartsTweet"; interface AnimatedBarTreatmentProps { targetSeconds: number; maxSeconds: number; color: string; durationLabel: string; durationSpeedup: string; costLabel: string; costChange: string; } const AnimatedBarTreatment = ({ targetSeconds, maxSeconds, color, durationLabel, durationSpeedup, costLabel, costChange, }: AnimatedBarTreatmentProps) => { const targetWidth = (targetSeconds / maxSeconds) * 100; const animationDuration = targetSeconds; return ( <>

{durationLabel} {durationSpeedup}× faster ({costLabel} ↓{costChange}%) ); }; AnimatedBarTreatment.displayName = "AnimatedBarTreatment"; interface LiveCounterProps { targetSeconds: number; maxSeconds: number; } const LiveCounter = ({ targetSeconds, maxSeconds }: LiveCounterProps) => { const [elapsedSeconds, setElapsedSeconds] = useState(0); useEffect(() => { const startTime = Date.now(); const interval = setInterval(() => { const elapsed = (Date.now() - startTime) / 1000; if (elapsed >= targetSeconds) { setElapsedSeconds(targetSeconds); clearInterval(interval); } else { setElapsedSeconds(elapsed); } }, BENCHMARK_LIVE_COUNTER_INTERVAL_MS); return () => clearInterval(interval); }, [targetSeconds]); const currentWidth = (elapsedSeconds / maxSeconds) * 100; return (

{elapsedSeconds.toFixed(1)}s

); }; LiveCounter.displayName = "LiveCounter"; export const BenchmarkCharts = ({ results }: BenchmarkChartsProps) => { const controlResults = results.filter((result) => result.type === "control"); const treatmentResults = results.filter( (result) => result.type === "treatment", ); if (controlResults.length === 0 || treatmentResults.length === 0) { return null; } const controlStats = calculateStats(controlResults); const treatmentStats = calculateStats(treatmentResults); const controlTotalCost = controlResults.reduce( (sum, result) => sum + result.costUsd, 0, ); const treatmentTotalCost = treatmentResults.reduce( (sum, result) => sum + result.costUsd, 0, ); const rawData = [ { name: "Avg Duration", Control: controlStats.avgDuration, Treatment: treatmentStats.avgDuration, better: "lower", unit: "ms", }, { name: "Total Cost", Control: controlTotalCost, Treatment: treatmentTotalCost, better: "lower", unit: "$", }, { name: "Avg Tool Calls", Control: controlStats.avgToolCalls, Treatment: treatmentStats.avgToolCalls, better: "lower", unit: "", }, ]; const metrics: Metric[] = [ { name: "Average Duration", control: prettyMs(controlStats.avgDuration), treatment: prettyMs(treatmentStats.avgDuration), isImprovement: treatmentStats.avgDuration <= controlStats.avgDuration, change: `${Math.abs(((treatmentStats.avgDuration - controlStats.avgDuration) / controlStats.avgDuration) * 100).toFixed(1)}%`, }, { name: "Total Cost", control: `$${controlTotalCost.toFixed(2)}`, treatment: `$${treatmentTotalCost.toFixed(2)}`, isImprovement: treatmentTotalCost <= controlTotalCost, change: `${Math.abs(((treatmentTotalCost - controlTotalCost) / controlTotalCost) * 100).toFixed(1)}%`, }, { name: "Avg Tool Calls", control: controlStats.avgToolCalls.toFixed(1), treatment: treatmentStats.avgToolCalls.toFixed(1), isImprovement: treatmentStats.avgToolCalls <= controlStats.avgToolCalls, change: `${Math.abs(((treatmentStats.avgToolCalls - controlStats.avgToolCalls) / controlStats.avgToolCalls) * 100).toFixed(1)}%`, }, ]; const chartData = rawData.map((metric) => ({ name: metric.name, Control: 100, Treatment: (metric.Treatment / metric.Control) * 100, ControlRaw: metric.Control, TreatmentRaw: metric.Treatment, unit: metric.unit, controlDisplay: formatMetricValue(metric.Control, metric.unit), treatmentDisplay: formatMetricValue(metric.Treatment, metric.unit), })); return (

Normalized to Control = 100%

} cursor={{ fill: "rgba(255,255,255,0.05)" }} /> (

{payload?.map((legendEntry) => (

{legendEntry.value === "React Grab" ? (

{legendEntry.value}

) : ( {legendEntry.value} )}

))}

)} />

{metrics.map((metric) => ( ))}

Metric	Control	React Grab
{metric.name}	{metric.control}	{metric.treatment} {metric.isImprovement ? "↓" : "↑"} {metric.change}

); }; BenchmarkCharts.displayName = "BenchmarkCharts";