refactor: update Claude model identifiers to use new naming convention

Author: daniel-lxs

packages/types/src/providers/anthropic.ts

@@ -6,7 +6,7 @@ export type AnthropicModelId = keyof typeof anthropicModels
 export const anthropicDefaultModelId: AnthropicModelId = "claude-sonnet-4-20250514"
 
 export const anthropicModels = {
-	"claude-sonnet-4-5-20250514": {
+	"claude-4.5-sonnet": {
 		maxTokens: 64_000, // Overridden to 8k if `enableReasoningEffort` is false.
 		contextWindow: 200_000, // Default 200K, extendable to 1M with beta flag 'context-1m-2025-08-07'
 		supportsImages: true,

packages/types/src/providers/bedrock.ts

@@ -67,7 +67,7 @@ export const bedrockModels = {
 		maxCachePoints: 1,
 		cachableFields: ["system"],
 	},
-	"anthropic.claude-sonnet-4-5-20250514-v1:0": {
+	"anthropic.claude-4.5-sonnet-v1:0": {
 		maxTokens: 8192,
 		contextWindow: 200_000,
 		supportsImages: true,

packages/types/src/providers/claude-code.ts

@@ -40,8 +40,8 @@ export function getClaudeCodeModelId(baseModelId: ClaudeCodeModelId, useVertex =
 }
 
 export const claudeCodeModels = {
-	"claude-sonnet-4-5-20250514": {
-		...anthropicModels["claude-sonnet-4-5-20250514"],
+	"claude-4.5-sonnet": {
+		...anthropicModels["claude-4.5-sonnet"],
 		supportsImages: false,
 		supportsPromptCache: true, // Claude Code does report cache tokens
 		supportsReasoningEffort: false,

packages/types/src/providers/vertex.ts

@@ -163,7 +163,7 @@ export const vertexModels = {
 		inputPrice: 1.25,
 		outputPrice: 5,
 	},
-	"claude-sonnet-4-5@20250514": {
+	"claude-4.5-sonnet": {
 		maxTokens: 8192,
 		contextWindow: 200_000,
 		supportsImages: true,

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

@@ -268,10 +268,10 @@ describe("AnthropicHandler", () => {
 		it("should handle Claude 4.5 Sonnet model correctly", () => {
 			const handler = new AnthropicHandler({
 				apiKey: "test-api-key",
-				apiModelId: "claude-sonnet-4-5-20250514",
+				apiModelId: "claude-4.5-sonnet",
 			})
 			const model = handler.getModel()
-			expect(model.id).toBe("claude-sonnet-4-5-20250514")
+			expect(model.id).toBe("claude-4.5-sonnet")
 			expect(model.info.maxTokens).toBe(64000)
 			expect(model.info.contextWindow).toBe(200000)
 			expect(model.info.supportsReasoningBudget).toBe(true)
@@ -280,7 +280,7 @@ describe("AnthropicHandler", () => {
 		it("should enable 1M context for Claude 4.5 Sonnet when beta flag is set", () => {
 			const handler = new AnthropicHandler({
 				apiKey: "test-api-key",
-				apiModelId: "claude-sonnet-4-5-20250514",
+				apiModelId: "claude-4.5-sonnet",
 				anthropicBeta1MContext: true,
 			})
 			const model = handler.getModel()

src/api/providers/anthropic.ts

@@ -47,14 +47,14 @@ export class AnthropicHandler extends BaseProvider implements SingleCompletionHa
 
 		// Add 1M context beta flag if enabled for Claude Sonnet 4 and 4.5
 		if (
-			(modelId === "claude-sonnet-4-20250514" || modelId === "claude-sonnet-4-5-20250514") &&
+			(modelId === "claude-sonnet-4-20250514" || modelId === "claude-4.5-sonnet") &&
 			this.options.anthropicBeta1MContext
 		) {
 			betas.push("context-1m-2025-08-07")
 		}
 
 		switch (modelId) {
-			case "claude-sonnet-4-5-20250514":
+			case "claude-4.5-sonnet":
 			case "claude-sonnet-4-20250514":
 			case "claude-opus-4-1-20250805":
 			case "claude-opus-4-20250514":
@@ -114,7 +114,7 @@ export class AnthropicHandler extends BaseProvider implements SingleCompletionHa
 
 						// Then check for models that support prompt caching
 						switch (modelId) {
-							case "claude-sonnet-4-5-20250514":
+							case "claude-4.5-sonnet":
 							case "claude-sonnet-4-20250514":
 							case "claude-opus-4-1-20250805":
 							case "claude-opus-4-20250514":
@@ -249,10 +249,7 @@ export class AnthropicHandler extends BaseProvider implements SingleCompletionHa
 		let info: ModelInfo = anthropicModels[id]
 
 		// If 1M context beta is enabled for Claude Sonnet 4 or 4.5, update the model info
-		if (
-			(id === "claude-sonnet-4-20250514" || id === "claude-sonnet-4-5-20250514") &&
-			this.options.anthropicBeta1MContext
-		) {
+		if ((id === "claude-sonnet-4-20250514" || id === "claude-4.5-sonnet") && this.options.anthropicBeta1MContext) {
 			// Use the tier pricing for 1M context
 			const tier = info.tiers?.[0]
 			if (tier) {

webview-ui/src/components/settings/providers/Anthropic.tsx

@@ -23,7 +23,7 @@ export const Anthropic = ({ apiConfiguration, setApiConfigurationField }: Anthro
 
 	// Check if the current model supports 1M context beta
 	const supports1MContextBeta =
-		selectedModel?.id === "claude-sonnet-4-20250514" || selectedModel?.id === "claude-sonnet-4-5-20250514"
+		selectedModel?.id === "claude-sonnet-4-20250514" || selectedModel?.id === "claude-4.5-sonnet"
 
 	const handleInputChange = useCallback(
 		<K extends keyof ProviderSettings, E>(