diff --git a/.changeset/fn-8636-card-cost-badge-dash.md b/.changeset/fn-8636-card-cost-badge-dash.md
new file mode 100644
index 0000000000..a554c84c6d
--- /dev/null
+++ b/.changeset/fn-8636-card-cost-badge-dash.md
@@ -0,0 +1,7 @@
+---
+"@runfusion/fusion": patch
+---
+
+summary: Hide unavailable cost badges on board task cards.
+category: fix
+dev: Board cards now omit unavailable costs while detail and analytics surfaces retain the guess-free sentinel.
diff --git a/packages/dashboard/app/components/TaskCard.tsx b/packages/dashboard/app/components/TaskCard.tsx
index 381d4bc993..a336883801 100644
--- a/packages/dashboard/app/components/TaskCard.tsx
+++ b/packages/dashboard/app/components/TaskCard.tsx
@@ -1158,13 +1158,15 @@ function TaskCardComponent({
   const retryWarningThreshold = useRetryWarning();
   const costBadge = useCostBadge();
   /*
-  FNXC:TaskCardCostBadge 2026-07-11-12:20:
-  The optional spend chip sits beside execution time but stays fully absent unless the default-off setting is enabled and the task has positive token usage. Use the shared read-time taskTokenCost helper so unpriced models show the guess-free “—” sentinel instead of a fabricated $0.
+  FNXC:TaskCardCostBadge 2026-07-31-23:39:
+  Board cards must omit the optional spend chip entirely when the derived cost is unavailable, avoiding a dash-only badge or empty Promote row. Detail and analytics surfaces retain formatCost's guess-free “—” sentinel rather than fabricating a $0 value.
   */
   const cardCost = costBadge.enabled && hasTaskCost(task as TaskDetail)
     ? taskTotalCost(task as TaskDetail, costBadge.pricingOverrides)
     : null;
-  const cardCostLabel = cardCost ? formatCost(cardCost.usd, cardCost.unavailable) : null;
+  const cardCostLabel = cardCost && !cardCost.unavailable && cardCost.usd !== null
+    ? formatCost(cardCost.usd, false)
+    : null;
 
   // Touch gesture detection refs
   const touchStartPosRef = useRef<{ x: number; y: number; time: number } | null>(null);
diff --git a/packages/dashboard/app/components/__tests__/TaskCard.cost-badge.test.tsx b/packages/dashboard/app/components/__tests__/TaskCard.cost-badge.test.tsx
index 50d8f7040c..744f5ce015 100644
--- a/packages/dashboard/app/components/__tests__/TaskCard.cost-badge.test.tsx
+++ b/packages/dashboard/app/components/__tests__/TaskCard.cost-badge.test.tsx
@@ -108,33 +108,74 @@ describe("TaskCard cost badge", () => {
     expect(badges[0]?.closest(".card-footer-row-right")).not.toBeNull();
   });
 
-  it("keeps unpriced usage guess-free and renders once below Promote", () => {
-    const { container } = render(
-      <CostBadgeProvider value={{ enabled: true }}>
-        <TaskCard
-          task={taskWithUsage({
-            tokenUsage: {
-              ...taskWithUsage().tokenUsage!,
-              modelProvider: "unknown",
-              modelId: "no-price",
-              perModel: [
-                { modelProvider: "openai", modelId: "gpt-5-mini", inputTokens: 1_000_000, outputTokens: 0, cachedTokens: 0, cacheWriteTokens: 0, totalTokens: 1_000_000 },
-                { modelProvider: "unknown", modelId: "no-price", inputTokens: 1, outputTokens: 0, cachedTokens: 0, cacheWriteTokens: 0, totalTokens: 1 },
-              ],
-            },
-          })}
-          onOpenDetail={noop}
-          addToast={noop}
-          onPromote={vi.fn().mockResolvedValue(undefined)}
-        />
-      </CostBadgeProvider>,
-    );
+  it.each([1280, 390])("omits unavailable cost chips and their shells at %ipx with or without Promote", (width) => {
+    const originalWidth = window.innerWidth;
+    Object.defineProperty(window, "innerWidth", { configurable: true, value: width });
 
-    const badges = container.querySelectorAll(".card-cost-indicator");
-    expect(badges).toHaveLength(1);
-    expect(badges[0]?.textContent).toBe("—");
-    expect(badges[0]?.closest(".card-promote-cost-row")).not.toBeNull();
-    expect(badges[0]?.closest(".card-footer-row-right")).toBeNull();
+    try {
+      const unavailableWithoutPromote = render(
+        <CostBadgeProvider value={{ enabled: true }}>
+          <TaskCard
+            task={taskWithUsage({
+              tokenUsage: { ...taskWithUsage().tokenUsage!, modelProvider: "unknown", modelId: "no-price" },
+            })}
+            onOpenDetail={noop}
+            addToast={noop}
+          />
+        </CostBadgeProvider>,
+      );
+      expect(unavailableWithoutPromote.container.querySelector(".card-cost-indicator")).toBeNull();
+      expect(unavailableWithoutPromote.container.querySelector(".card-cost-indicator[aria-label]")).toBeNull();
+      expect(unavailableWithoutPromote.container.querySelector(".card-promote-cost-row")).toBeNull();
+      unavailableWithoutPromote.unmount();
+
+      const unavailableWithPromote = render(
+        <CostBadgeProvider value={{ enabled: true }}>
+          <TaskCard
+            task={taskWithUsage({
+              tokenUsage: {
+                ...taskWithUsage().tokenUsage!,
+                modelProvider: "unknown",
+                modelId: "no-price",
+                perModel: [
+                  { modelProvider: "openai", modelId: "gpt-5-mini", inputTokens: 1_000_000, outputTokens: 0, cachedTokens: 0, cacheWriteTokens: 0, totalTokens: 1_000_000 },
+                  { modelProvider: "unknown", modelId: "no-price", inputTokens: 1, outputTokens: 0, cachedTokens: 0, cacheWriteTokens: 0, totalTokens: 1 },
+                ],
+              },
+            })}
+            onOpenDetail={noop}
+            addToast={noop}
+            onPromote={vi.fn().mockResolvedValue(undefined)}
+          />
+        </CostBadgeProvider>,
+      );
+      expect(unavailableWithPromote.container.querySelector(".card-cost-indicator")).toBeNull();
+      expect(unavailableWithPromote.container.querySelector(".card-cost-indicator[aria-label]")).toBeNull();
+      expect(unavailableWithPromote.container.querySelector(".card-promote-cost-row")).toBeNull();
+      unavailableWithPromote.unmount();
+
+      const pricedWithoutPromote = render(
+        <CostBadgeProvider value={{ enabled: true }}>
+          <TaskCard task={taskWithUsage()} onOpenDetail={noop} addToast={noop} />
+        </CostBadgeProvider>,
+      );
+      const footerBadge = pricedWithoutPromote.container.querySelectorAll(".card-cost-indicator");
+      expect(footerBadge).toHaveLength(1);
+      expect(footerBadge[0]?.textContent).toContain("$");
+      pricedWithoutPromote.unmount();
+
+      const pricedWithPromote = render(
+        <CostBadgeProvider value={{ enabled: true }}>
+          <TaskCard task={taskWithUsage()} onOpenDetail={noop} addToast={noop} onPromote={vi.fn().mockResolvedValue(undefined)} />
+        </CostBadgeProvider>,
+      );
+      const promoteBadge = pricedWithPromote.container.querySelectorAll(".card-cost-indicator");
+      expect(promoteBadge).toHaveLength(1);
+      expect(promoteBadge[0]?.textContent).toContain("$");
+      expect(promoteBadge[0]?.closest(".card-promote-cost-row")).not.toBeNull();
+    } finally {
+      Object.defineProperty(window, "innerWidth", { configurable: true, value: originalWidth });
+    }
   });
 
   it("keeps the shared card cost chip visible at the mobile breakpoint", () => {
diff --git a/packages/dashboard/app/components/__tests__/TaskCard.test.tsx b/packages/dashboard/app/components/__tests__/TaskCard.test.tsx
index 0fcbd36fcd..a7a8e99fe5 100644
--- a/packages/dashboard/app/components/__tests__/TaskCard.test.tsx
+++ b/packages/dashboard/app/components/__tests__/TaskCard.test.tsx
@@ -6617,7 +6617,7 @@ describe("TaskCard", () => {
     expect(container.querySelector(".card-footer-row")).toBeNull();
   });
 
-  it("places the unavailable cost sentinel inside todo meta without adding an icon", () => {
+  it("omits an unavailable cost chip and its footer shell", () => {
     const { container } = render(
       <CostBadgeProvider value={{ enabled: true }}>
         <TaskCard
@@ -6642,14 +6642,10 @@ describe("TaskCard", () => {
       </CostBadgeProvider>,
     );
 
-    const costBadge = container.querySelector(".card-cost-indicator") as HTMLElement | null;
-    expect(costBadge).not.toBeNull();
-    expect(costBadge?.textContent).toContain("—");
-    expect(costBadge?.querySelector("svg")).toBeNull();
-    expect(costBadge?.getAttribute("aria-label")).toBe("Estimated cost —");
-    expect(costBadge?.getAttribute("title")).toBe("Estimated cost —");
-    expect(costBadge?.closest(".card-meta")).toBe(container.querySelector(".card-meta"));
-    expect(costBadge?.closest(".card-footer-row")).toBeNull();
+    expect(container.querySelector(".card-cost-indicator")).toBeNull();
+    expect(container.querySelector(".card-cost-indicator[aria-label]")).toBeNull();
+    expect(container.querySelector(".card-promote-cost-row")).toBeNull();
+    expect(container.querySelector(".card-footer-row-right")).toBeNull();
     expect(container.querySelector(".card-footer-row")).toBeNull();
   });