diff --git a/src/core/Cline.ts b/src/core/Cline.ts
index f85bf18..82a4314 100644
--- a/src/core/Cline.ts
+++ b/src/core/Cline.ts
@@ -3043,7 +3043,11 @@ export class Cline {
 
 		// Add context tokens information
 		const { contextTokens } = getApiMetrics(this.clineMessages)
-		details += `\n\n# Current Context Size (Tokens)\n${contextTokens ? contextTokens.toLocaleString() : "(Not available)"}`
+		const modelInfo = this.api.getModel().info
+		const contextWindow = modelInfo.contextWindow
+		const contextPercentage =
+			contextTokens && contextWindow ? Math.round((contextTokens / contextWindow) * 100) : undefined
+		details += `\n\n# Current Context Size (Tokens)\n${contextTokens ? `${contextTokens.toLocaleString()} (${contextPercentage}%)` : "(Not available)"}`
 
 		// Add current mode and any mode-specific warnings
 		const { mode, customModes } = (await this.providerRef.deref()?.getState()) ?? {}
diff --git a/webview-ui/src/components/chat/TaskHeader.tsx b/webview-ui/src/components/chat/TaskHeader.tsx
index 52b3756..f51bf13 100644
--- a/webview-ui/src/components/chat/TaskHeader.tsx
+++ b/webview-ui/src/components/chat/TaskHeader.tsx
@@ -7,6 +7,7 @@ import { vscode } from "../../utils/vscode"
 import Thumbnails from "../common/Thumbnails"
 import { mentionRegexGlobal } from "../../../../src/shared/context-mentions"
 import { formatLargeNumber } from "../../utils/format"
+import { normalizeApiConfiguration } from "../settings/ApiOptions"
 
 interface TaskHeaderProps {
 	task: ClineMessage
@@ -32,11 +33,14 @@ const TaskHeader: React.FC<TaskHeaderProps> = ({
 	onClose,
 }) => {
 	const { apiConfiguration } = useExtensionState()
+	const { selectedModelInfo } = useMemo(() => normalizeApiConfiguration(apiConfiguration), [apiConfiguration])
 	const [isTaskExpanded, setIsTaskExpanded] = useState(true)
 	const [isTextExpanded, setIsTextExpanded] = useState(false)
 	const [showSeeMore, setShowSeeMore] = useState(false)
 	const textContainerRef = useRef<HTMLDivElement>(null)
 	const textRef = useRef<HTMLDivElement>(null)
+	const contextWindow = selectedModelInfo?.contextWindow || 1
+	const contextPercentage = Math.round((contextTokens / contextWindow) * 100)
 
 	/*
 	When dealing with event listeners in React components that depend on state variables, we face a challenge. We want our listener to always use the most up-to-date version of a callback function that relies on current state, but we don't want to constantly add and remove event listeners as that function updates. This scenario often arises with resize listeners or other window events. Simply adding the listener in a useEffect with an empty dependency array risks using stale state, while including the callback in the dependencies can lead to unnecessary re-registrations of the listener. There are react hook libraries that provide a elegant solution to this problem by utilizing the useRef hook to maintain a reference to the latest callback function without triggering re-renders or effect re-runs. This approach ensures that our event listener always has access to the most current state while minimizing performance overhead and potential memory leaks from multiple listener registrations. 
@@ -277,7 +281,9 @@ const TaskHeader: React.FC<TaskHeaderProps> = ({
 							<div style={{ display: "flex", alignItems: "center", gap: "4px", flexWrap: "wrap" }}>
 								<span style={{ fontWeight: "bold" }}>Context:</span>
 								<span style={{ display: "flex", alignItems: "center", gap: "3px" }}>
-									{contextTokens ? formatLargeNumber(contextTokens) : '-'}
+									{contextTokens
+										? `${formatLargeNumber(contextTokens)} (${contextPercentage}%)`
+										: "-"}
 								</span>
 							</div>