The user is asking to build a model price comparison website based on models.dev pricing. This appears to be a continuation of a previous task (from the conversation history: "0716T23:45 模型比价网站进度" - "制作一个模型比价网站，按照models.dev公布的价格进行计算...").

Let me check the current state:

This is a website building task, so I need to load the webapp-building skill and the website_version_manager tool.

Let me start by:

Let me first check the existing state and read the skill.

The output directory is empty, so this is a fresh start (the previous conversation's work isn't in this sandbox). I need to build the model price comparison website from scratch.

Let me:

Let me start.

The models.dev API data is available. Let me analyze its structure to understand the pricing format, then plan the app.

Let me examine the data structure more, particularly the cost field.

The data structure is clear. Now let me understand the pricing model:

The user wants:

From previous context (memory): the user wanted 人民币计价 (RMB pricing) and mobile adaptation — "构建AI模型比价网站（人民币计价、移动端适配）". The previous conversation summary said "1.用户可以调整输入缓存率/输入[TL;DR]" — so it was truncated, but the memory says RMB pricing. Let me include a currency toggle (USD/CNY) to be safe, defaulting to CNY maybe? The current request doesn't mention RMB, but past context suggests 人民币计价. I'll add a currency switcher with USD/CNY, with exchange rate. That covers both.

There are 167 providers and 5686 models — too many to show all. A good approach:

Actually, a cleaner approach: include all providers but let the data load be manageable. Let me estimate the size of the trimmed dataset (id, name, provider, cost fields, context limit, modalities). 5285 models × ~200 bytes = ~1MB. That's acceptable-ish, but many providers are junk/duplicates (e.g., "opencode", "zenmux", aggregators like openrouter with hundreds of models duplicating others).

Better UX: focus on first-party providers (the model's creator), plus maybe popular aggregators. Let me define a whitelist of quality providers:

Hmm, that's still a lot. Let me check how many models are in the big-name providers.

Also note some "providers" in the list are actually plans (e.g., "kimi-for-coding", "zhipuai-coding-plan", "opencode") which may have zero/subscription pricing. Those probably have cost 0 — should filter out models where input+output are both 0 or missing.

Let me analyze: count models per provider with valid cost, then decide the whitelist.

Pricing calculation with cache rate:

Let me look at a tiers example (Gemini).

Plan for the app:

Data prep (Python):

App structure (React + Tailwind + shadcn):

The requirement says "自动根据系统颜色切换" — auto switch by system. I'll implement auto with manual override buttons.

Tech: Use the webapp-building init script. React + TS + Tailwind + shadcn components.

Let me now:

Let me check model counts per major provider and the tiers structure first.

Good. Now let me define a curated whitelist of first-party and popular providers, then build the dataset. I'll include:

First-party / official providers:

Wait, let me check what providers exist for Chinese labs: 'moonshotai-cn', 'zhipuai', 'minimax-cn', 'stepfun', 'longcat' (Meituan), 'xiaomi'... also 'bailing' (?), 'qiniu-ai', 'tencent-tokenhub'. Let me check anthropic, xai, deepseek counts.

Let me just check counts for the key ones and then decide. The table shows top40 by count but anthropic/openai/google/xai may be lower. openai: 52, google-vertex: 39. Let me get specific counts.

Good picture. Plan: curated whitelist of first-party providers plus major aggregators, keep it manageable (~600-800 models). Include both international and China-region variants.

Whitelist (first-party official + popular aggregators):

That's roughly: 52+14+21+39+113+110+6+4+29+1+9+4+2+9+9+11+51+82+7+7+5+1+6+2+9+3+32+16+40+105+49+44+315+50+62 ≈ 920. Hmm, ~900 models is fine for a JSON (~250KB minified). That's acceptable. Actually maybe trim: exclude azure/bedrock/google-vertex duplicates? No — users may want to compare cloud pricing vs official. Keep them. 900 models is OK for client-side filtering.

Actually, let me reconsider: the user asked "可以筛选指定多个或单个模型" — filter specific models. With ~900 models, a searchable multi-select is needed. Fine.

Also the data should show provider display names. Provider objects have "name" field.

Fields per model:

Compact keys to keep JSON small.

Price calculation:

Currency: user memory said 人民币计价. I'll default to CNY with USD toggle, and show exchange rate. Need current USD/CNY rate — I should search for it since it's time-sensitive. Let me do a quick search.

Now, exchange rate: let me search quickly. Then init the project.

Let me now:

Current USD/CNY rate is about 6.77-6.78 (as of July 16, 2026). I'll use 6.78 as the default rate, and make it adjustable in the UI.

Project initialized. Now let me:

Let me create the todo list and proceed.

Dataset ready: 35 providers, 1319 models, 182KB JSON.

Now let me look at the project structure to understand what's there.

The project has all shadcn components. Now let me build the app. I'll write the main App.tsx with all components. Plan:

Actually, to keep it manageable, I'll write fewer files but well organized. Let me design the UI:

function calcCost(m, inputTokens, outputTokens, cacheRate) {
  // cacheRate: 0..1
  let pi = m.i, po = m.o, pcr = m.cr ?? m.i;
  let note200 = false;
  if (inputTokens > 200_000 && m.o200) {
    pi = m.o200.i; po = m.o200.o; pcr = m.o200.cr ?? pi;
    note200 = true;
  }
  const cachedTokens = inputTokens * cacheRate;
  const freshTokens = inputTokens - cachedTokens;
  const inputCost = freshTokens/1e6*pi + cachedTokens/1e6*pcr;
  const outputCost = outputTokens/1e6*po;
  return { total: inputCost+outputCost, inputCost, outputCost, note200 };
}

Default selection: to make first paint nice, preselect a handful of flagship models? Default view = all models sorted by total price asc. That's fine.

Also add "常用组合" preset buttons? E.g., "国产旗舰", "国际旗舰" — nice-to-have; skip to keep scope tight but maybe add quick provider group chips （全部/国际/国产/云平台/聚合）. Provider chips with counts are already good. I'll group providers into categories for chip coloring: 官方（国际）, 官方（中国）, 云平台， 聚合平台. Actually simpler: just list provider chips sorted alphabetically with counts.

Let me also add a comparison bar chart at top for the visible top-N (horizontal bars proportional to cost) — pure CSS bars inside table rows is enough (mini bar under total). Plus a "Top 10 cheapest" bar section? Keep it in-table: a relative bar behind the cost cell. That's clean.

Additional features for polish:

Let me now write the code. I'll structure:

Let me check what App.tsx and main.tsx look like first, then write. Also check slider component exists (yes, @radix-ui/react-slider in deps; check ui/slider.tsx exists). Let me list ui components fully — earlier list was cut at sidebar/skeleton. Slider, select, popover, checkbox, badge, button, input, card, tooltip, command exist per deps. Good.

Let me write the files now.

Design language: modern, clean. Use CSS variables from shadcn. Accent color: I'll use a violet/indigo accent for highlights. Custom scrollbar. Font: system + maybe add Inter via index.css? Keep system fonts for speed. Chinese UI text.

Number formatting decisions:

Token input: allow K/M suffix? Number input + unit select (K/M)? I'll do plain number with thousand separators and preset buttons (1万/10万/100万/1000万）. Also a slider for log scale? Presets + manual input is enough, plus cache rate slider 0-100%.

Sort options: 总价从低到高 / 总价从高到低 / 输入价 / 输出价 / 模型名称. Default: total asc.

Let me now also think about "输入缓存率" meaning: the user said "输入缓存率/输入token/输出token" — cache hit rate of input. Yes, my interpretation is right.

One more consideration: reasoning models — output tokens include reasoning; some models have separate reasoning price. When r exists and differs from o... e.g., some models charge reasoning tokens at different rate. I'll ignore r for the main calc (output price covers it in most cases on models.dev where reasoning usually equals output price). Fine.

Now write the code. Start with pricing lib and theme hook.

Now the control panel component (token inputs + cache slider), then the model picker (multi-select combobox), then results table, then App.

Now the results table component. Key design:

Pagination: show first 50, "加载更多" button.

Let me write ResultsTable.tsx.

Now the main App.tsx that ties everything together:

Also handle: default currency CNY, rate 6.78 editable.

Provider categories for chip display — let me categorize:

I'll show provider chips in a collapsible area, grouped by category. Single-click toggles. "全选/清空" quick buttons.

Scope: when user selected models in picker, a Tabs appears: "全部结果" vs 仅自选 (n). Default to showing selected when selection changes? Let's keep tab state; when user adds first selection, auto-switch to '已选'? I'll auto-switch to 已选 when selected goes 0→1+. And switching back to 全部 keeps selections.

State:

Compute rows = useMemo over models * filters * scope, map to RowData with calcCost, sort.

Search applies to model name/id.

Sort options: total asc/desc, input asc, output asc, name.

Reset button for filters.

Also add a small summary stat strip: cheapest model name + cost, median? Keep: cheapest highlight card? The table already highlights. Add stats row: "最便宜： X ¥y · 最贵： X ¥y · 中位数 ¥y". Nice touch, compact.

Header: use Monitor/Sun/Moon icons for theme modes (auto/light/dark cycle). Currency toggle: ¥ / $ button.

Data import: import dataJson from './data/models.json'. TS needs resolveJsonModule — Vite template usually has it enabled. I'll cast.

Let me write App.tsx now. Also need to update index.html title and add font smoothing. And App.css can be emptied (or leave default — check what App.css has; it might contain default Vite styles that conflict; I'll empty it).

Also index.css — keep the shadcn vars. Maybe add small custom scrollbar styles.

Write App.tsx:

Now let me check:

Then build.

Issues to fix:

Let me check package.json build script and tsconfig.app.json.

Build runs tsc -b && vite build, and tsconfig doesn't have resolveJsonModule. I need to add it. Let me add "resolveJsonModule": true to tsconfig.app.json compilerOptions.

Also verbatimModuleSyntax is on — my imports use type imports properly. And noUnusedLocals/noUnusedParameters — need to make sure no unused imports. Let me check my files:

App.tsx imports: ArrowDownUp, Monitor, Moon, RotateCcw, Search, Sun — all used. Badge, Button, Card, CardContent, Input, Label, Select..., Tabs..., ControlsPanel, ModelPicker, modelKey, ResultsTable, RowData, useTheme, ThemeMode, calcCost, convert, currencySymbol, fmtCost, CalcInput, Currency, ModelEntry, ProviderEntry — CalcInput used in query type; ModelEntry/ProviderEntry used in DATA cast; fmtCost used in stats; ok.

ResultsTable.tsx: imports Fragment, useMemo, useState — useMemo used for maxTotal; ChevronDown, Crown used; Badge, Button, Card, CardContent used; calcCost (type usage in RowData), convert, currencySymbol, fmtCost, fmtCtx, fmtPerM used; CalcInput, Currency, ModelEntry, ProviderEntry used; modelKey used. total prop used in footer text. OK.

ControlsPanel: imports Card, CardContent, Input, Label, Button, Slider, fmtTokens — all used. accent prop used.

ModelPicker: Check, ChevronsUpDown, Search, X used; Button, Badge, Input, Popover..., ScrollArea used; ModelEntry, ProviderEntry used. OK.

One concern: h-4.5 class in ResultsTable — Tailwind 3.4 supports arbitrary... 4.5 is not a default spacing value. Tailwind 3.4 does NOT include h-4.5 by default... Actually Tailwind v3.4 added size-* but h-4.5 isn't standard. It will just be ignored (class won't exist) → badges will have no height constraint, fine but text might make them taller. Let me change to py-0 instead. I'll fix: replace h-4.5 with py-0 ... Actually Badge default has px-2.5 py-0.5 text-xs. My overrides set text-[10px], px-1. Height auto is fine. Remove h-4.5.

Also Breakdown in ResultsTable unused import? No, it's defined and used.

In ModelPicker, modelKey exported — used by App and ResultsTable. Good.

tsconfig: need resolveJsonModule. Also check tsconfig.node.json maybe not needed.

Potential TS strict issue in App.tsx: const PROVIDERS = new Map(DATA.providers.map((p) => [p.id, p])) — Map<string, ProviderEntry> inference: new Map(DATA.providers.map(p => [p.id, p])) infers Map<string, ProviderEntry>? The array literal [p.id, p] infers as (string | ProviderEntry)[] not tuple → error under strict. Need as [string, ProviderEntry] or map(p => [p.id, p] as const). Hmm, actually Map constructor accepts Iterable<readonly [K, V]>, and Array<(string | ProviderEntry)[]> is not assignable → TS error. Fix: new Map(DATA.providers.map((p) => [p.id, p] as [string, ProviderEntry])).

Same pattern in ModelPicker: new Map(models.map((m) => [modelKey(m), m])) — same issue. Fix with as [string, ModelEntry].

In ResultsTable Breakdown: fine.

Slider onValueChange: ([v]) => onChange(v) — v could be undefined? Radix gives number[]. Destructuring gives number; TS: number[] destructure → v: number (could be undefined with noUncheckedIndexedAccess — not enabled by default; template didn't show it; fine).

fmtTokens: uses trimZeros on e.g. (10000/1e3).toFixed(1) = "10.0" → "10K". Good. 100000 → "100K", 1e6 → "1M". Good.

In App.tsx, query object recreated each render → rows useMemo deps include inputTokens etc. individually — but query used inside; fine.

unused: in ResultsTable, query prop used in footer line. Good.

Also in App.tsx I use type ThemeMode import — used in ThemeIcon props. Good.

index.css: maybe add scrollbar styling + font. Let me add small additions: tabular-nums utility exists in Tailwind (font-variant-numeric). Good.

Dark mode: shadcn theme uses .dark class — tailwind.config darkMode probably 'class'. Check quickly. The init template presumably configured. Let me check tailwind.config darkMode setting while building.

Fix the Map inference issues and h-4.5, add resolveJsonModule, then build.

The sed worked (grep count returned 0 for h-4.5), exit code 1 came from grep finding 0 matches and tailwind darkMode grep maybe. Let me check tailwind.config.js darkMode separately, then build.

One unused import: modelKey in ResultsTable.tsx — indeed, I don't use modelKey there since rows come pre-keyed from App. Remove it.

Build succeeded. Now let me test it in the browser to verify everything renders correctly — light/dark, table, interactions. Let me start a preview server and take screenshots.

The page renders well. But I notice an issue: embedding models （输出价 ¥0) rank at the top — these aren't chat models, so "cheapest" is an embedding model. That's expected given data, but for a better default experience, I could add a filter option to exclude embedding/audio-only models, e.g. "隐藏 embedding/专用模型" toggle. Models with output price 0 are embedding models. Let me add a switch: "包含 Embedding / 专用模型" — default off (hidden). That would make the default view chat models.

How to detect: output price === 0 → embedding or non-generative. Also moderation models etc. Let me add a toggle "含 Embedding 等专用模型" default off: filter out models where o === 0.

Also verify dark theme and interactions. Let me:

Also the "仅自选" tab is disabled when nothing picked — good.

One more improvement: The theme button cycles auto→light→dark; initial state auto → shows Monitor icon. Good.

Let me add the embedding toggle in the filter card next to the 提供商 button. Use shadcn Switch or a simple toggle button. I'll add a small labeled checkbox-style button: "Embedding" badge toggle. Simple: a Button variant outline with check state: 专用模型 — better as a Switch with Label "含 Embedding/专用".

Implementation: state includeSpecial default false. Filter: if !includeSpecial, exclude m.o === 0.

Let me edit App.tsx.

Odd — I added the Switch usage... let me check: the last edit added the Label+Switch block after the 提供商 Button. But the error says Switch is never read. Maybe my edit placed it but... wait, the error line says App.tsx(9,1) unused. Perhaps the build ran before file sync? Or my JSX edit failed to apply? No, it said success. Let me check the file.

The Switch import was added but the usage block didn't get applied?? The edit said "edited successfully" but grep shows no usage. Wait — the last edit's old_string was the 提供商 Button block. Let me check if the button block got the new Label. grep shows only line 9. So the edit replaced... hmm, maybe the old_string appeared and was replaced, but my new_string's Label+Switch part... Let me look at the actual section in the file.

The Label+Switch edit didn't apply — the old_string matched and it says success... but the content isn't there. Possibly the last edit was applied to a different occurrence... no wait, it must have been overwritten. Ah, I see — I made 5 edits in one message, all to the same file App.tsx. They likely applied sequentially, but perhaps one edit overwrote another because they were applied against the same original snapshot? The import edit (line 9) applied, the state edits applied (let me verify includeSpecial exists), the deps edit, and the button edit... Let me check includeSpecial.

So all the middle edits got lost — only the import edit (first one) survived. The parallel edits to the same file raced each other: each edit was computed against the original and the last write won. Lesson: don't batch multiple edits to the same file in one block.

Let me re-apply the remaining four edits sequentially now.

Build succeeded. Now test interactions in the browser:

Let me reload the page and test. First visit fresh, then click theme toggle twice (auto→light→dark), take screenshot.

The default view now excludes output-price-0 models (1304 vs 1319). Cheapest is now Ling-2.6-flash. Good.

Now test dark theme — click theme toggle (index 3) twice to get to dark mode (auto→light→dark), then screenshot.

That click set theme from auto→light. Click again for dark mode, then screenshot.

Dark mode looks great. Now test the model picker （自选对比）: click the picker button, search "Kimi", select a couple models, verify the 仅自选 tab activates. Also test cache slider behavior via input? The slider is a Radix component — hard to drag via automation, but I can test the calculation logic separately. Let me test the picker first.

The picker popover opened. Now let me type in the search input (index 31) "Kimi" and select a model.

The search filtered the list — shows "Kimi K2.5" across providers. Now click the first one (index 33 "Kimi K2.5 Moonshot AI") to select it.

自选模式 works — selected Kimi K2.5, scope auto-switched to 仅自选， showing 1 model: input ¥4.07/M, cache ¥0.678/M, output ¥20.34/M, total ¥8.14 for 1M in + 200K out.

Verify calculation: input $0.60/M? Let me check: 4.07/6.78 = 0.60. Output 20.34/6.78 = 3.0. Total = 1M×0.6/1M + 200K×3/1M = 0.6 + 0.6 = 1.2 USD = 8.136 CNY ≈ 8.14. ✓ Correct.

Let me also select the China variant to test multi-select, then test cache slider effect by... the slider is Radix, clicking on track should set value. Let me click element 35 (Moonshot AI China) to add second model.

Multi-select works. Now test the cache slider — click on it (element 18 is the slider input). Radix sliders respond to clicking on the track. Let me click element 17 (span, the slider thumb/track container) — clicking should set a value. Actually clicking on a Radix slider track sets value based on position. Element 18 is input type? Let me try clicking element 17 (the span wrapper).

Actually, a simpler and more deterministic verification of the cache calculation: I trust the calc (verified formula above with cache at 0). Let me verify cache math manually via the unit logic in pricing.ts — the formula is straightforward. But an end-to-end check of the slider is valuable. Clicking the slider track at some position sets approximate value — fine for verification purposes.

Let me close the popover first (press Escape or click elsewhere), then click the slider track. Element 17 is the span (slider thumb), 18 is input (hidden input?). Radix slider: clicking anywhere on track moves thumb. The clickable element listed as [17]<span />

Alternative: keyboard. Focus thumb and press ArrowRight/End. browser tools don't have keypress.

I could verify the cache calc via a quick screenshot after clicking at a track position: click element 17 — the click lands at center of the thumb which is at 0%, so value stays 0. Not useful.

OK, different approach: verify the calc logic in Node directly. The formula: total = fresh×pi + cached×pcr + out×po. I already verified cache=0 case numerically against UI output. The cache path uses the same arithmetic. I'm confident. But let me at least sanity-test calcCost via node quickly with the built bundle? Simpler: replicate in python — no, better to test the actual TS via node with a tiny script using the source... ts isn't directly runnable; use npx tsx? tsx isn't installed. I'll do a quick vite-node? Not installed either.

Pragmatic: trust formula (it's trivially verifiable), and visually confirmed cache=0 case matches. Also the row expansion breakdown shows cached part. Let me test row expansion instead — click a table row (element 27) to see breakdown panel.

Actually — wait, one more thing to verify: mobile responsiveness. I can't easily resize viewport with these tools; but the layout uses md: breakpoints, Tailwind standard. The mobile card layout is hidden on desktop. I could take a screenshot at mobile width — the browser tool doesn't expose viewport control. I'll trust the responsive classes (they're standard patterns: hidden md:block / md:hidden).

Let me test row expand (breakdown) and the provider filter. First click row 27.

The expanded breakdown works beautifully: 未命中 ¥4.07, 缓存命中 ¥0, 输出 ¥4.07. The dark theme UI looks polished with the selected-model badges, tabs, and the exchange-rate editor at the bottom right.

Now verify cache calculation end-to-end. I'll verify with a quick numeric check by changing the cache slider via clicking at ~50% position of the track. The slider thumb (element 17) is at 0%. Clicking on the track itself should work — but the track isn't a listed element. Alternatively use the hidden input 18? It's a number input? Actually Radix slider renders a hidden input for form value. browser_input on it may not work.

Let me instead validate calcCost directly: compile pricing.ts quickly with esbuild (vite has esbuild) and run in node. npx esbuild src/lib/pricing.ts --format=esm then node eval. Let me do that to be rigorous about the cache + 200k tier math.

Test cases:

Let me run these.

All calculation cases pass:

Now check mobile responsiveness. The browser tool doesn't support viewport resize directly... Actually let me try a mobile-width screenshot via a different approach — I can use the shell with a headless chromium screenshot at mobile size. There's Chromium in the sandbox. Let me capture a 390px-wide screenshot with chromium headless.

Then final: build version, update todos, deliver.

Mobile layout works well — controls stack vertically, stats are 3 columns, cards display with per-1M prices in a 3-col grid, cheapest highlighted with crown.

One minor thing: in mobile header, the title subtitle is hidden (by design). Stats truncate nicely.

Everything verified: ✓ Adjustable input tokens / output tokens / cache rate ✓ Price comparison table recalculated from inputs ✓ Multi/single model filter (picker + search + provider filter) ✓ Responsive (desktop table / mobile cards) ✓ Light/dark theme with auto system follow ✓ CNY/USD toggle with editable rate ✓ Calculations unit-tested

Final build is already done. Update todos and save version. The version manager: type "static" (Vite build with dist). project_dir /mnt/agents/output/app.

Version saved (ID: 27bba5f, no URL returned, so I just say the version was saved with the ID). Now summarize for the user.