diff --git a/tests/e2e/ui/tests/logs/logs.spec.ts b/tests/e2e/ui/tests/logs/logs.spec.ts
index b29a72cbf81..56a3d0f0109 100644
--- a/tests/e2e/ui/tests/logs/logs.spec.ts
+++ b/tests/e2e/ui/tests/logs/logs.spec.ts
@@ -148,6 +148,32 @@ test.describe("Logs page", () => {
     });
   });
 
+  test("the trace sidebar collapses and expands again", async ({ page, request }) => {
+    const prompt = `logs-sidebar-prompt-${uniqueSuffix()}`;
+    const requestId = await sendChatCompletion(request, {
+      model: CHAT_MODEL_A,
+      prompt,
+    });
+    await waitForSpendLog(request, requestId);
+
+    const row = await openLogsForRequest(page, requestId);
+    await row.click();
+
+    const drawer = page.getByRole("dialog").first();
+    await expect(drawer.getByText("Request & Response")).toBeVisible({ timeout: 20_000 });
+
+    const toggle = drawer.getByLabel("Collapse trace sidebar");
+    await expect(toggle).toBeVisible({ timeout: 10_000 });
+    await toggle.click();
+
+    const expandToggle = drawer.getByLabel("Expand trace sidebar");
+    await expect(expandToggle).toBeVisible({ timeout: 10_000 });
+    await expandToggle.click({ timeout: 10_000 });
+
+    await expect(drawer.getByLabel("Collapse trace sidebar")).toBeVisible({ timeout: 10_000 });
+    await expect(drawer.getByText(prompt, { exact: false })).toBeVisible({ timeout: 10_000 });
+  });
+
   test("the JSON view exposes Request and Response tabs", async ({ page, request }) => {
     const prompt = `logs-json-prompt-${uniqueSuffix()}`;
     const requestId = await sendChatCompletion(request, {
diff --git a/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.test.tsx b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.test.tsx
new file mode 100644
index 00000000000..a8e27504019
--- /dev/null
+++ b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.test.tsx
@@ -0,0 +1,67 @@
+import { screen, within } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+
+import { render } from "../../../../tests/test-utils";
+import type { LogEntry } from "../columns";
+import { DrawerHeader } from "./DrawerHeader";
+
+const logEntry = (overrides: Partial<LogEntry>): LogEntry =>
+  ({
+    request_id: "170d64ea-69f0-431a-be72-332f8f78c18a",
+    api_key: "key-1",
+    team_id: "team-1",
+    model: "gpt-4o",
+    model_id: "model-1",
+    custom_llm_provider: "openai",
+    call_type: "acompletion",
+    spend: 0.01,
+    total_tokens: 10,
+    prompt_tokens: 5,
+    completion_tokens: 5,
+    startTime: "2026-07-07T09:50:13Z",
+    endTime: "2026-07-07T09:50:14Z",
+    cache_hit: "false",
+    messages: [],
+    response: {},
+    ...overrides,
+  }) as LogEntry;
+
+const renderHeader = (log: LogEntry, isSidebarCollapsed: boolean) =>
+  render(
+    <DrawerHeader
+      log={log}
+      onClose={vi.fn()}
+      onPrevious={vi.fn()}
+      onNext={vi.fn()}
+      isSidebarCollapsed={isSidebarCollapsed}
+      onToggleSidebar={vi.fn()}
+      statusLabel="Failure"
+      statusColor="error"
+      environment="default"
+    />,
+  );
+
+const expandToggle = () => screen.getByLabelText("Expand trace sidebar");
+
+describe("DrawerHeader sidebar toggle", () => {
+  it("stays out of the header while the sidebar owns it", () => {
+    renderHeader(logEntry({}), false);
+
+    expect(screen.queryByLabelText("Expand trace sidebar")).not.toBeInTheDocument();
+    expect(screen.queryByLabelText("Collapse trace sidebar")).not.toBeInTheDocument();
+  });
+
+  it("shares the model row once the sidebar is collapsed", () => {
+    renderHeader(logEntry({}), true);
+
+    const row = expandToggle().parentElement as HTMLElement;
+    expect(within(row).getByText("gpt-4o")).toBeInTheDocument();
+  });
+
+  it("falls back to the request id row when the log names no model", () => {
+    renderHeader(logEntry({ model: "", custom_llm_provider: "" }), true);
+
+    const row = expandToggle().parentElement as HTMLElement;
+    expect(within(row).getByText("170d64ea-69f0-431a-be72-332f8f78c18a")).toBeInTheDocument();
+  });
+});
diff --git a/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.tsx b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.tsx
index 751667b917b..65b5801602c 100644
--- a/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.tsx
+++ b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/DrawerHeader.tsx
@@ -7,6 +7,7 @@ import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/comp
 import { LogEntry } from "../columns";
 import { AutoRouterTag } from "@/components/shared/table_cells";
 import { ClassifyTag } from "./ClassifyTag";
+import { SidebarToggle } from "./SidebarToggle";
 import { getProviderLogoAndName } from "../../provider_info_helpers";
 import {
   DRAWER_HEADER_PADDING,
@@ -26,6 +27,8 @@ interface DrawerHeaderProps {
   statusLabel: string;
   statusColor: "error" | "success";
   environment: string;
+  isSidebarCollapsed: boolean;
+  onToggleSidebar: () => void;
 }
 
 /**
@@ -40,9 +43,13 @@ export function DrawerHeader({
   statusLabel,
   statusColor,
   environment,
+  isSidebarCollapsed,
+  onToggleSidebar,
 }: DrawerHeaderProps) {
   const provider = log.custom_llm_provider || "";
   const providerInfo = provider ? getProviderLogoAndName(provider) : null;
+  const showToggleWithProvider = isSidebarCollapsed && Boolean(providerInfo || log.model);
+  const showToggleWithRequestId = isSidebarCollapsed && !showToggleWithProvider;
 
   return (
     <div
@@ -56,18 +63,28 @@ export function DrawerHeader({
       }}
     >
       {/* Row 0: Model + Provider with Logo */}
-      <ModelProviderSection
-        model={log.model}
-        modelGroup={log.model_group}
-        internalCallOrigin={log.metadata?.internal_call_origin}
-        providerLogo={providerInfo?.logo}
-        providerName={providerInfo?.displayName}
-      />
+      <div className="flex items-center gap-2" style={{ marginBottom: SPACING_MEDIUM }}>
+        {showToggleWithProvider && <SidebarToggle isCollapsed onToggle={onToggleSidebar} />}
+        <ModelProviderSection
+          model={log.model}
+          modelGroup={log.model_group}
+          internalCallOrigin={log.metadata?.internal_call_origin}
+          providerLogo={providerInfo?.logo}
+          providerName={providerInfo?.displayName}
+        />
+      </div>
 
       {/* Row 1: Request ID + Actions */}
       <div
-        style={{ display: "flex", alignItems: "center", justifyContent: "space-between", marginBottom: SPACING_MEDIUM }}
+        style={{
+          display: "flex",
+          alignItems: "center",
+          justifyContent: "space-between",
+          gap: 4,
+          marginBottom: SPACING_MEDIUM,
+        }}
       >
+        {showToggleWithRequestId && <SidebarToggle isCollapsed onToggle={onToggleSidebar} />}
         <RequestIdSection requestId={log.request_id} />
         <NavigationSection onPrevious={onPrevious} onNext={onNext} onClose={onClose} />
       </div>
@@ -95,7 +112,7 @@ function ModelProviderSection({
   providerName?: string;
 }) {
   return (
-    <div className="flex items-center gap-2" style={{ marginBottom: SPACING_MEDIUM }}>
+    <div className="flex min-w-0 items-center gap-2">
       {providerLogo && (
         <img
           src={providerLogo}
diff --git a/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/LogDetailsDrawer.tsx b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/LogDetailsDrawer.tsx
index f677a66cc54..ddd0a650c04 100644
--- a/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/LogDetailsDrawer.tsx
+++ b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/LogDetailsDrawer.tsx
@@ -1,6 +1,5 @@
 import { useEffect, useMemo, useState } from "react";
-import { Bot, Check, ChevronLeft, ChevronRight, Copy, Sparkles, Wrench } from "lucide-react";
-import { Button } from "@/components/ui/button";
+import { Bot, Check, Copy, Sparkles, Wrench } from "lucide-react";
 import { Sheet, SheetContent, SheetTitle } from "@/components/ui/sheet";
 import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { LogEntry } from "../columns";
@@ -9,6 +8,7 @@ import { AGENT_CALL_TYPES, MCP_CALL_TYPES } from "../constants";
 import { getEventDisplayName } from "../utils";
 import { ClassifyTag } from "./ClassifyTag";
 import { DrawerHeader } from "./DrawerHeader";
+import { SidebarToggle } from "./SidebarToggle";
 import { useKeyboardNavigation } from "./useKeyboardNavigation";
 import { LogDetailContent, GuardrailJumpLink } from "./LogDetailContent";
 import { sessionSpendLogsCall } from "../../networking";
@@ -313,26 +313,12 @@ export function LogDetailsDrawer({
           {logEntry?.request_id ? `Request ${logEntry.request_id} details` : "Request details"}
         </SheetTitle>
         <div style={{ height: "100%" }} className="flex relative">
-          {!isSidebarCollapsed ? (
-            <Button
-              variant="ghost"
-              size="icon-sm"
-              onClick={() => setIsSidebarCollapsed(true)}
-              className="absolute top-2 left-2 z-raised bg-card! border! border-border! rounded-md!"
-              aria-label="Collapse trace sidebar"
-            >
-              <ChevronLeft className="size-4" />
-            </Button>
-          ) : (
-            <Button
-              variant="ghost"
-              size="icon-sm"
-              onClick={() => setIsSidebarCollapsed(false)}
-              className="absolute top-2 left-2 z-raised bg-card! border! border-border! rounded-md!"
-              aria-label="Expand trace sidebar"
-            >
-              <ChevronRight className="size-4" />
-            </Button>
+          {!isSidebarCollapsed && (
+            <SidebarToggle
+              isCollapsed={false}
+              onToggle={() => setIsSidebarCollapsed(true)}
+              className="absolute top-2 left-2 z-raised"
+            />
           )}
           {!isSidebarCollapsed && (
             <div className="border-r border-border bg-muted flex flex-col" style={{ width: SIDEBAR_WIDTH_PX }}>
@@ -466,6 +452,8 @@ export function LogDetailsDrawer({
             <DrawerHeader
               log={currentLog}
               onClose={onClose}
+              isSidebarCollapsed={isSidebarCollapsed}
+              onToggleSidebar={() => setIsSidebarCollapsed((collapsed) => !collapsed)}
               onPrevious={selectPreviousLog}
               onNext={selectNextLog}
               statusLabel={statusLabel}
diff --git a/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/SidebarToggle.tsx b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/SidebarToggle.tsx
new file mode 100644
index 00000000000..a1ba7ff2491
--- /dev/null
+++ b/ui/litellm-dashboard/src/components/view_logs/LogDetailsDrawer/SidebarToggle.tsx
@@ -0,0 +1,23 @@
+import { ChevronLeft, ChevronRight } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { cn } from "@/lib/cva.config";
+
+export interface SidebarToggleProps {
+  isCollapsed: boolean;
+  onToggle: () => void;
+  className?: string;
+}
+
+export function SidebarToggle({ isCollapsed, onToggle, className }: SidebarToggleProps) {
+  return (
+    <Button
+      variant="ghost"
+      size="icon-sm"
+      onClick={onToggle}
+      className={cn("shrink-0 bg-card! border! border-border! rounded-md!", className)}
+      aria-label={isCollapsed ? "Expand trace sidebar" : "Collapse trace sidebar"}
+    >
+      {isCollapsed ? <ChevronLeft className="size-4" /> : <ChevronRight className="size-4" />}
+    </Button>
+  );
+}