[docs]: add Pika H3 Flex to the cookbook

Three source recipes (T2VA, keyframes, Ref2VA) on one model page under
MiniMax H3, with knobs for task, resolution tier, aspect bucket,
duration, NVFP4 decoder and text encoder, offload mode, and GPU count.
The page uses the official Pika-Labs Hugging Face avatar.

docs-site/islands/RecipeFamily.tsx

@@ -5,7 +5,7 @@ export default function RecipeFamily({ family }: { family: string }) {
   const models = modelDirectory.filter(
     (model) =>
       model.recipes.some((recipe) => recipe.family === family) ||
-      (family === "minimax_h3" && model.family === "FastH3"),
+      (family === "minimax_h3" && (model.family === "FastH3" || model.familyPath === "/cookbook/minimax-h3")),
   );
   return (
     <div className="recipe-directory not-prose">

docs-site/lib/cookbook-pages.ts

@@ -105,6 +105,8 @@ export interface SourceRecipe {
 export const sourceRecipes = sourceCatalog.recipes as SourceRecipe[];
 const familyInfo: Record<string, { title: string; path: string; logo: string; category: string }> = {
   minimax_h3: { title: "MiniMax H3", path: "minimax-h3", logo: "minimax", category: "Video" },
+  // A post-trained MiniMax-H3 (Pika adapters on H3 components), listed with the H3 family.
+  pika_h3_flex: { title: "MiniMax H3", path: "minimax-h3", logo: "pika", category: "Video" },
   wan: { title: "Wan", path: "wan", logo: "wan-ai", category: "Video" },
   ltx2: { title: "LTX", path: "ltx", logo: "ltx", category: "Video" },
   hunyuan: { title: "Hunyuan", path: "hunyuan", logo: "tencent-hunyuan", category: "Video" },
@@ -158,6 +160,7 @@ export const modelDirectory = [...new Set(sourceRecipes.map((recipe) => recipe.m
     const providers: Record<string, string> = {
       fastvideo: "FastVideo",
       minimax: "MiniMax",
+      pika: "Pika",
       "wan-ai": "Wan AI",
       ltx: "Lightricks",
       "tencent-hunyuan": "Tencent",

docs-site/navigation.json

@@ -174,6 +174,10 @@
             "label": "FastH3 4-Step V1",
             "href": "/cookbook/minimax-h3/fasth3-4step"
           },
+          {
+            "label": "Pika H3 Flex",
+            "href": "/cookbook/minimax-h3/models/pika-h3-flex-t2va"
+          },
           {
             "label": "Recipes and setup",
             "href": "/cookbook/minimax-h3"

docs-site/tests/cookbook.spec.ts

@@ -223,7 +223,7 @@ test("inherited values, explicit false, zero and null retain their meanings", as
 test("catalog discovery opens dedicated model recipes and filters by family and task", async ({ page }) => {
   await page.goto("/FastVideo/cookbook");
   const cards = page.locator(".recipe-card");
-  await expect(cards).toHaveCount(37);
+  await expect(cards).toHaveCount(38);
   await expect(cards.first()).toContainText("FastH3 OmniRef");
   await page.getByLabel("Model family", { exact: true }).selectOption("Wan");
   await page.getByLabel("Search recipes").fill("Wan2.1 I2V");
@@ -277,7 +277,7 @@ test("output tabs support keyboard navigation and precision chips use the backen
   await page.getByLabel("Search recipes").fill("does not exist");
   await expect(page.getByRole("heading", { name: "No matching recipes" })).toBeVisible();
   await page.getByRole("button", { name: "Clear filters" }).click();
-  await expect(page.locator(".recipe-card")).toHaveCount(37);
+  await expect(page.locator(".recipe-card")).toHaveCount(38);
 });
 
 test("cookbook cards and controls remain readable in dark mode and reflow at 320px", async ({ page }) => {
@@ -395,6 +395,35 @@ test("source-backed controls update the copied command without changing models",
   await expect(page.getByLabel("Inference command", { exact: true })).toContainText("--num-gpus '2'");
 });
 
+test("Pika H3 Flex knobs select the tier, bucket, duration, task, and NVFP4 decoder", async ({ page }) => {
+  await page.goto("/FastVideo/cookbook/minimax-h3");
+  const pika = page.locator(".recipe-card").filter({ hasText: "Pika H3 Flex" });
+  await expect(pika.locator("img")).toHaveAttribute("src", /\/pika\.webp$/);
+  await expect(pika).toContainText("Pika");
+  await pika.click();
+  await expect(page).toHaveURL(/cookbook\/minimax-h3\/models\/pika-h3-flex-t2va$/);
+  const command = page.getByLabel("Inference command", { exact: true });
+  await expect(command).toContainText("FASTVIDEO_ATTENTION_BACKEND=FLASH_ATTN FASTVIDEO_FA4=1");
+  await chip(page, "Resolution", "480p");
+  await chip(page, "Aspect ratio", "9:16");
+  await chip(page, "Duration", "10 s (243 frames)");
+  await chip(page, "VAE decoder", "NVFP4 36L quality");
+  await expect(command).toContainText("--resolution '480p'");
+  await expect(command).toContainText("--aspect '9:16'");
+  await expect(command).toContainText("--duration '10'");
+  await expect(command).toContainText("--nvfp4-decoder './fasth3-nvfp4-vae/quality-36L/decoder-nvfp4.safetensors'");
+  await page
+    .getByRole("group", { name: "Recipe variant", exact: true })
+    .getByRole("button", { name: "Pika H3 Flex keyframes", exact: true })
+    .click();
+  await expect(command).toContainText("--task fl2va --offload resident");
+  await chip(page, "Task", "First frame (I2VA)");
+  await chip(page, "Memory", "Lazy load + offload");
+  await expect(command).toContainText("--task 'i2va'");
+  await expect(command).toContainText("--offload 'lazy'");
+  await expect(page.getByRole("button", { name: "Copy example + command", exact: true })).toBeEnabled();
+});
+
 test("Wan I2V requires an image for CLI and SDK examples without changing server defaults", async ({ page }) => {
   await page.goto("/FastVideo/cookbook/wan/wan21-i2v");
   await chip(page, "Run mode", "CLI");