Sonic -> Grok Code Fast

packages/types/src/providers/roo.ts

@@ -1,19 +1,19 @@
 import type { ModelInfo } from "../model.js"
 
 // Roo provider with single model
-export type RooModelId = "roo/sonic"
+export type RooModelId = "xai/grok-code-fast-1"
 
-export const rooDefaultModelId: RooModelId = "roo/sonic"
+export const rooDefaultModelId: RooModelId = "xai/grok-code-fast-1"
 
 export const rooModels = {
-	"roo/sonic": {
+	"xai/grok-code-fast-1": {
 		maxTokens: 16_384,
 		contextWindow: 262_144,
 		supportsImages: false,
 		supportsPromptCache: true,
 		inputPrice: 0,
 		outputPrice: 0,
 		description:
-			"A stealth reasoning model that is blazing fast and excels at agentic coding, accessible for free through Roo Code Cloud for a limited time. (Note: prompts and completions are logged by the model creator and used to improve the model.)",
+			"A reasoning model that is blazing fast and excels at agentic coding, accessible for free through Roo Code Cloud for a limited time. (Note: the free prompts and completions are logged by xAI and used to improve the model.)",
 	},
 } as const satisfies Record<string, ModelInfo>

packages/types/src/providers/xai.ts

@@ -3,9 +3,20 @@ import type { ModelInfo } from "../model.js"
 // https://docs.x.ai/docs/api-reference
 export type XAIModelId = keyof typeof xaiModels
 
-export const xaiDefaultModelId: XAIModelId = "grok-4"
+export const xaiDefaultModelId: XAIModelId = "grok-code-fast-1"
 
 export const xaiModels = {
+	"grok-code-fast-1": {
+		maxTokens: 16_384,
+		contextWindow: 262_144,
+		supportsImages: false,
+		supportsPromptCache: true,
+		inputPrice: 0.2,
+		outputPrice: 1.5,
+		cacheWritesPrice: 0.02,
+		cacheReadsPrice: 0.02,
+		description: "xAI's Grok Code Fast model with 256K context window",
+	},
 	"grok-4": {
 		maxTokens: 8192,
 		contextWindow: 256000,

packages/types/src/single-file-read-models.ts

@@ -4,29 +4,11 @@
  * instead of the more complex multi-file args format
  */
 
-// List of model IDs (or patterns) that should use single file reads only
-export const SINGLE_FILE_READ_MODELS = new Set<string>(["roo/sonic"])
-
 /**
  * Check if a model should use single file read format
  * @param modelId The model ID to check
  * @returns true if the model should use single file reads
  */
 export function shouldUseSingleFileRead(modelId: string): boolean {
-	// Direct match
-	if (SINGLE_FILE_READ_MODELS.has(modelId)) {
-		return true
-	}
-
-	// Pattern matching for model families
-	// Check if model ID starts with any configured pattern
-	// Using Array.from for compatibility with older TypeScript targets
-	const patterns = Array.from(SINGLE_FILE_READ_MODELS)
-	for (const pattern of patterns) {
-		if (pattern.endsWith("*") && modelId.startsWith(pattern.slice(0, -1))) {
-			return true
-		}
-	}
-
-	return false
+	return modelId.includes("grok-code-fast-1")
 }

src/api/providers/__tests__/roo.spec.ts

@@ -115,7 +115,7 @@ describe("RooHandler", () => {
 
 	beforeEach(() => {
 		mockOptions = {
-			apiModelId: "roo/sonic",
+			apiModelId: "xai/grok-code-fast-1",
 		}
 		// Set up CloudService mocks for successful authentication
 		mockHasInstanceFn.mockReturnValue(true)
@@ -313,8 +313,8 @@ describe("RooHandler", () => {
 			const modelInfo = handler.getModel()
 			expect(modelInfo.id).toBe(mockOptions.apiModelId)
 			expect(modelInfo.info).toBeDefined()
-			// roo/sonic is a valid model in rooModels
-			expect(modelInfo.info).toBe(rooModels["roo/sonic"])
+			// xai/grok-code-fast-1 is a valid model in rooModels
+			expect(modelInfo.info).toBe(rooModels["xai/grok-code-fast-1"])
 		})
 
 		it("should return default model when no model specified", () => {

src/core/webview/ClineProvider.ts

@@ -120,7 +120,7 @@ export class ClineProvider
 
 	public isViewLaunched = false
 	public settingsImportedAt?: number
-	public readonly latestAnnouncementId = "aug-20-2025-stealth-model" // Update for stealth model announcement
+	public readonly latestAnnouncementId = "aug-25-2025-grok-code-fast" // Update for Grok Code Fast announcement
 	public readonly providerSettingsManager: ProviderSettingsManager
 	public readonly customModesManager: CustomModesManager
 

webview-ui/src/components/chat/Announcement.tsx

@@ -42,29 +42,65 @@ const Announcement = ({ hideAnnouncement }: AnnouncementProps) => {
 					<DialogTitle>{t("chat:announcement.title", { version: Package.version })}</DialogTitle>
 				</DialogHeader>
 				<div>
-					<ul className="space-y-2">
-						<li>
-							•{" "}
+					<div className="space-y-2">
+						<div>
 							<Trans
 								i18nKey="chat:announcement.stealthModel.feature"
 								components={{
 									bold: <b />,
+									code: <code className="px-1 py-0.5 bg-gray-100 dark:bg-gray-800 rounded" />,
 								}}
 							/>
-						</li>
-					</ul>
+						</div>
+					</div>
 
-					<p className="text-xs text-muted-foreground mt-2">{t("chat:announcement.stealthModel.note")}</p>
+					<div className="mt-4">
+						<Trans
+							i18nKey="chat:announcement.stealthModel.note"
+							components={{
+								bold: <b />,
+								code: <code className="px-1 py-0.5 bg-gray-100 dark:bg-gray-800 rounded" />,
+							}}
+						/>
+					</div>
 
 					<div className="mt-4">
 						{!cloudIsAuthenticated ? (
-							<Button
-								onClick={() => {
-									vscode.postMessage({ type: "rooCloudSignIn" })
-								}}
-								className="w-full">
-								{t("chat:announcement.stealthModel.connectButton")}
-							</Button>
+							<div className="space-y-3">
+								<div className="text-sm w-full">
+									<Trans
+										i18nKey="chat:announcement.stealthModel.selectModel"
+										components={{
+											code: <code className="px-1 py-0.5 bg-gray-100 dark:bg-gray-800 rounded" />,
+											settingsLink: (
+												<VSCodeLink
+													href="#"
+													onClick={(e) => {
+														e.preventDefault()
+														setOpen(false)
+														hideAnnouncement()
+														window.postMessage(
+															{
+																type: "action",
+																action: "settingsButtonClicked",
+																values: { section: "provider" },
+															},
+															"*",
+														)
+													}}
+												/>
+											),
+										}}
+									/>
+								</div>
+								<Button
+									onClick={() => {
+										vscode.postMessage({ type: "rooCloudSignIn" })
+									}}
+									className="w-full">
+									{t("chat:announcement.stealthModel.connectButton")}
+								</Button>
+							</div>
 						) : (
 							<div className="text-sm w-full">
 								<Trans

webview-ui/src/components/chat/__tests__/Announcement.spec.tsx

@@ -25,10 +25,10 @@ vi.mock("@src/i18n/TranslationContext", () => ({
 				return `🎉 Roo Code ${options?.version} Released`
 			}
 			if (key === "chat:announcement.stealthModel.feature") {
-				return "Stealth reasoning model with advanced capabilities"
+				return "The Sonic stealth model is now Grok Code Fast!"
 			}
 			if (key === "chat:announcement.stealthModel.note") {
-				return "Note: This is an experimental feature"
+				return "As a thank you for all the helpful feedback about Sonic, you'll also continue to have free access to the grok-code-fast-1 model for another week through the Roo Code Cloud provider."
 			}
 			if (key === "chat:announcement.stealthModel.connectButton") {
 				return "Connect to Roo Code Cloud"
@@ -43,10 +43,23 @@ vi.mock("@src/i18n/TranslationContext", () => ({
 vi.mock("react-i18next", () => ({
 	Trans: ({ i18nKey, children }: { i18nKey?: string; children: React.ReactNode }) => {
 		if (i18nKey === "chat:announcement.stealthModel.feature") {
-			return <>Stealth reasoning model with advanced capabilities</>
+			return (
+				<>
+					The Sonic stealth model is now Grok Code Fast! The fast reasoning model is now available as
+					grok-code-fast-1 under the &ldquo;xAI (Grok)&rdquo; provider.
+				</>
+			)
 		}
 		if (i18nKey === "chat:announcement.stealthModel.selectModel") {
-			return <>Please select the roo/sonic model in settings</>
+			return <>Visit Settings to get started</>
+		}
+		if (i18nKey === "chat:announcement.stealthModel.note") {
+			return (
+				<>
+					As a thank you for all the helpful feedback about Sonic, you&rsquo;ll also continue to have free
+					access to the grok-code-fast-1 model for another week through the Roo Code Cloud provider.
+				</>
+			)
 		}
 		return <>{children}</>
 	},
@@ -77,11 +90,11 @@ describe("Announcement", () => {
 		// Check if the mocked version number is present in the title
 		expect(screen.getByText(`🎉 Roo Code ${expectedVersion} Released`)).toBeInTheDocument()
 
-		// Check if the stealth model feature is displayed (using partial match due to bullet point)
-		expect(screen.getByText(/Stealth reasoning model with advanced capabilities/)).toBeInTheDocument()
+		// Check if the Grok Code Fast feature is displayed
+		expect(screen.getByText(/The Sonic stealth model is now Grok Code Fast!/)).toBeInTheDocument()
 
 		// Check if the note is displayed
-		expect(screen.getByText("Note: This is an experimental feature")).toBeInTheDocument()
+		expect(screen.getByText(/As a thank you for all the helpful feedback about Sonic/)).toBeInTheDocument()
 
 		// Check if the connect button is displayed (since cloudIsAuthenticated is false in the mock)
 		expect(screen.getByText("Connect to Roo Code Cloud")).toBeInTheDocument()

webview-ui/src/components/ui/hooks/useSelectedModel.ts

@@ -308,9 +308,21 @@ function getSelectedModel({
 			return { id, info }
 		}
 		case "roo": {
-			const id = apiConfiguration.apiModelId ?? rooDefaultModelId
-			const info = rooModels[id as keyof typeof rooModels]
-			return { id, info }
+			const requestedId = apiConfiguration.apiModelId
+
+			// Check if the requested model exists in rooModels
+			if (requestedId && rooModels[requestedId as keyof typeof rooModels]) {
+				return {
+					id: requestedId,
+					info: rooModels[requestedId as keyof typeof rooModels],
+				}
+			}
+
+			// Fallback to default model if requested model doesn't exist or is not specified
+			return {
+				id: rooDefaultModelId,
+				info: rooModels[rooDefaultModelId as keyof typeof rooModels],
+			}
 		}
 		case "qwen-code": {
 			const id = apiConfiguration.apiModelId ?? qwenCodeDefaultModelId

webview-ui/src/i18n/locales/en/chat.json

@@ -275,10 +275,10 @@
 	"announcement": {
 		"title": "🎉 Roo Code {{version}} Released",
 		"stealthModel": {
-			"feature": "<bold>Limited-time FREE stealth model</bold> - A blazing fast reasoning model that excels at agentic coding with a 262k context window, available through Roo Code Cloud.",
-			"note": "(Note: prompts and completions are logged by the model creator to improve the model)",
+			"feature": "The Sonic stealth model is now <bold>Grok Code Fast</bold>! This high-performance reasoning model is available as <code>grok-code-fast-1</code> under the <bold>xAI (Grok)</bold> provider.",
+			"note": "As a thank you for all the helpful feedback on Sonic, xAI is extending free access to <code>grok-code-fast-1</code> for another week through the <bold>Roo Code Cloud</bold> provider.",
 			"connectButton": "Connect to Roo Code Cloud",
-			"selectModel": "Select <code>roo/sonic</code> from the Roo Code Cloud provider in<br/><settingsLink>Settings</settingsLink> to get started"
+			"selectModel": "Visit <settingsLink>Settings</settingsLink> to update your provider configuration."
 		}
 	},
 	"reasoning": {