diff --git a/ui/litellm-dashboard/src/components/UsagePage/components/KeyModelUsageView.test.tsx b/ui/litellm-dashboard/src/components/UsagePage/components/KeyModelUsageView.test.tsx
new file mode 100644
index 0000000000..61968294e1
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+++ b/ui/litellm-dashboard/src/components/UsagePage/components/KeyModelUsageView.test.tsx
@@ -0,0 +1,298 @@
+import { render, screen } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { describe, expect, it } from "vitest";
+import KeyModelUsageView from "./KeyModelUsageView";
+import { TopModelData } from "../types";
+
+describe("KeyModelUsageView", () => {
+  const mockTopModels: TopModelData[] = [
+    {
+      model: "gpt-4",
+      spend: 150.5,
+      requests: 105,
+      successful_requests: 100,
+      failed_requests: 5,
+      tokens: 50000,
+    },
+    {
+      model: "gpt-3.5-turbo",
+      spend: 75.25,
+      requests: 200,
+      successful_requests: 195,
+      failed_requests: 5,
+      tokens: 100000,
+    },
+  ];
+
+  it("should render", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByText("Model Usage")).toBeInTheDocument();
+  });
+
+  it("should return null when topModels is empty", () => {
+    const { container } = render(<KeyModelUsageView topModels={[]} />);
+    expect(container.firstChild).toBeNull();
+  });
+
+  it("should display Model Usage title", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByText("Model Usage")).toBeInTheDocument();
+  });
+
+  it("should display Table view button", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByRole("button", { name: "Table" })).toBeInTheDocument();
+  });
+
+  it("should display Chart view button", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByRole("button", { name: "Chart" })).toBeInTheDocument();
+  });
+
+  it("should default to table view", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    const tableButton = screen.getByRole("button", { name: "Table" });
+    expect(tableButton).toHaveClass("bg-blue-100");
+  });
+
+  it("should display all table column headers", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByText("Model")).toBeInTheDocument();
+    expect(screen.getByText("Spend (USD)")).toBeInTheDocument();
+    expect(screen.getByText("Successful")).toBeInTheDocument();
+    expect(screen.getByText("Failed")).toBeInTheDocument();
+    expect(screen.getByText("Tokens")).toBeInTheDocument();
+  });
+
+  it("should display model data in table view", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByText("gpt-4")).toBeInTheDocument();
+    expect(screen.getByText("gpt-3.5-turbo")).toBeInTheDocument();
+    expect(screen.getByText("$150.50")).toBeInTheDocument();
+    expect(screen.getByText("$75.25")).toBeInTheDocument();
+  });
+
+  it("should format spend values with two decimal places", () => {
+    const modelsWithDecimalSpend: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 123.456,
+        requests: 10,
+        successful_requests: 10,
+        failed_requests: 0,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithDecimalSpend} />);
+    expect(screen.getByText("$123.46")).toBeInTheDocument();
+  });
+
+  it("should format large spend values with commas", () => {
+    const modelsWithLargeSpend: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 1234567.89,
+        requests: 10,
+        successful_requests: 10,
+        failed_requests: 0,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithLargeSpend} />);
+    expect(screen.getByText("$1,234,567.89")).toBeInTheDocument();
+  });
+
+  it("should display successful requests with green styling", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    const successfulElements = screen.getAllByText("100");
+    const greenElement = successfulElements.find((el) => el.closest("span")?.classList.contains("text-green-600"));
+    expect(greenElement).toBeDefined();
+  });
+
+  it("should display failed requests with red styling", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    const failedElements = screen.getAllByText("5");
+    const redElement = failedElements.find((el) => el.closest("span")?.classList.contains("text-red-600"));
+    expect(redElement).toBeDefined();
+  });
+
+  it("should format token numbers with commas", () => {
+    const modelsWithLargeTokens: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 100,
+        requests: 10,
+        successful_requests: 10,
+        failed_requests: 0,
+        tokens: 1234567,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithLargeTokens} />);
+    expect(screen.getByText("1,234,567")).toBeInTheDocument();
+  });
+
+  it("should display dash for missing model value", () => {
+    const modelsWithMissingModel: TopModelData[] = [
+      {
+        model: "",
+        spend: 100,
+        requests: 10,
+        successful_requests: 10,
+        failed_requests: 0,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithMissingModel} />);
+    expect(screen.getByText("-")).toBeInTheDocument();
+  });
+
+  it("should display zero values correctly", () => {
+    const modelsWithZeros: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 0,
+        requests: 0,
+        successful_requests: 0,
+        failed_requests: 0,
+        tokens: 0,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithZeros} />);
+    expect(screen.getByText("$0.00")).toBeInTheDocument();
+    expect(screen.getAllByText("0").length).toBeGreaterThan(0);
+  });
+
+  it("should switch to chart view when chart button is clicked", async () => {
+    const user = userEvent.setup();
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+
+    const chartButton = screen.getByRole("button", { name: "Chart" });
+    await user.click(chartButton);
+
+    expect(chartButton).toHaveClass("bg-blue-100");
+    const tableButton = screen.getByRole("button", { name: "Table" });
+    expect(tableButton).not.toHaveClass("bg-blue-100");
+  });
+
+  it("should switch back to table view when table button is clicked", async () => {
+    const user = userEvent.setup();
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+
+    const chartButton = screen.getByRole("button", { name: "Chart" });
+    const tableButton = screen.getByRole("button", { name: "Table" });
+
+    await user.click(chartButton);
+    await user.click(tableButton);
+
+    expect(tableButton).toHaveClass("bg-blue-100");
+    expect(chartButton).not.toHaveClass("bg-blue-100");
+  });
+
+  it("should display chart when chart view is selected", async () => {
+    const user = userEvent.setup();
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+
+    const chartButton = screen.getByRole("button", { name: "Chart" });
+    await user.click(chartButton);
+
+    expect(screen.queryByText("Model")).not.toBeInTheDocument();
+  });
+
+  it("should display table when table view is selected", () => {
+    render(<KeyModelUsageView topModels={mockTopModels} />);
+    expect(screen.getByText("Model")).toBeInTheDocument();
+    expect(screen.getByText("gpt-4")).toBeInTheDocument();
+  });
+
+  it("should handle multiple model entries", () => {
+    const manyModels: TopModelData[] = Array.from({ length: 10 }, (_, i) => ({
+      model: `model-${i + 1}`,
+      spend: 100 + i,
+      requests: 50 + i,
+      successful_requests: 45 + i,
+      failed_requests: 5,
+      tokens: 10000 + i * 1000,
+    }));
+
+    render(<KeyModelUsageView topModels={manyModels} />);
+    expect(screen.getByText("model-1")).toBeInTheDocument();
+    expect(screen.getByText("model-10")).toBeInTheDocument();
+  });
+
+  it("should format successful requests with toLocaleString", () => {
+    const modelsWithLargeNumbers: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 100,
+        requests: 1000,
+        successful_requests: 999999,
+        failed_requests: 1,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithLargeNumbers} />);
+    expect(screen.getByText("999,999")).toBeInTheDocument();
+  });
+
+  it("should format failed requests with toLocaleString", () => {
+    const modelsWithLargeNumbers: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 100,
+        requests: 1000,
+        successful_requests: 1,
+        failed_requests: 999999,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithLargeNumbers} />);
+    expect(screen.getByText("999,999")).toBeInTheDocument();
+  });
+
+  it("should display zero for missing successful_requests", () => {
+    const modelsWithMissingFields: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 100,
+        requests: 10,
+        successful_requests: undefined as any,
+        failed_requests: 0,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithMissingFields} />);
+    const zeroElements = screen.getAllByText("0");
+    const successfulZero = zeroElements.find((el) => el.closest("span")?.classList.contains("text-green-600"));
+    expect(successfulZero).toBeDefined();
+  });
+
+  it("should display zero for missing failed_requests", () => {
+    const modelsWithMissingFields: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 100,
+        requests: 10,
+        successful_requests: 10,
+        failed_requests: undefined as any,
+        tokens: 1000,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithMissingFields} />);
+    expect(screen.getAllByText("0").length).toBeGreaterThan(0);
+  });
+
+  it("should display zero for missing tokens", () => {
+    const modelsWithMissingFields: TopModelData[] = [
+      {
+        model: "test-model",
+        spend: 100,
+        requests: 10,
+        successful_requests: 10,
+        failed_requests: 0,
+        tokens: undefined as any,
+      },
+    ];
+    render(<KeyModelUsageView topModels={modelsWithMissingFields} />);
+    expect(screen.getAllByText("0").length).toBeGreaterThan(0);
+  });
+});