diff --git a/packages/types/src/providers/openrouter.ts b/packages/types/src/providers/openrouter.ts
index b908f08f2d..dde6730e52 100644
--- a/packages/types/src/providers/openrouter.ts
+++ b/packages/types/src/providers/openrouter.ts
@@ -38,7 +38,7 @@ export const OPEN_ROUTER_PROMPT_CACHING_MODELS = new Set([
 	"anthropic/claude-3.7-sonnet:beta",
 	"anthropic/claude-3.7-sonnet:thinking",
 	"anthropic/claude-sonnet-4",
-	"anthropic/claude-4.5-sonnet",
+	"anthropic/claude-sonnet-4.5",
 	"anthropic/claude-opus-4",
 	"anthropic/claude-opus-4.1",
 	"google/gemini-2.5-flash-preview",
@@ -60,7 +60,7 @@ export const OPEN_ROUTER_COMPUTER_USE_MODELS = new Set([
 	"anthropic/claude-3.7-sonnet:beta",
 	"anthropic/claude-3.7-sonnet:thinking",
 	"anthropic/claude-sonnet-4",
-	"anthropic/claude-4.5-sonnet",
+	"anthropic/claude-sonnet-4.5",
 	"anthropic/claude-opus-4",
 	"anthropic/claude-opus-4.1",
 ])
@@ -83,7 +83,7 @@ export const OPEN_ROUTER_REASONING_BUDGET_MODELS = new Set([
 	"anthropic/claude-opus-4",
 	"anthropic/claude-opus-4.1",
 	"anthropic/claude-sonnet-4",
-	"anthropic/claude-4.5-sonnet",
+	"anthropic/claude-sonnet-4.5",
 	"google/gemini-2.5-pro-preview",
 	"google/gemini-2.5-pro",
 	"google/gemini-2.5-flash-preview-05-20",
diff --git a/src/api/providers/fetchers/__tests__/openrouter.spec.ts b/src/api/providers/fetchers/__tests__/openrouter.spec.ts
index 3517c2be8c..c538095822 100644
--- a/src/api/providers/fetchers/__tests__/openrouter.spec.ts
+++ b/src/api/providers/fetchers/__tests__/openrouter.spec.ts
@@ -34,7 +34,7 @@ describe("OpenRouter API", () => {
 				"google/gemini-2.5-flash", // OpenRouter doesn't report this as supporting prompt caching
 				"google/gemini-2.5-flash-lite-preview-06-17", // OpenRouter doesn't report this as supporting prompt caching
 				"anthropic/claude-opus-4.1", // Not yet available in OpenRouter API
-				"anthropic/claude-4.5-sonnet", // Not yet available in OpenRouter API
+				"anthropic/claude-sonnet-4.5", // Not yet available in OpenRouter API
 			])
 
 			const ourCachingModels = Array.from(OPEN_ROUTER_PROMPT_CACHING_MODELS).filter(
@@ -53,7 +53,7 @@ describe("OpenRouter API", () => {
 
 			const excludedComputerUseModels = new Set([
 				"anthropic/claude-opus-4.1", // Not yet available in OpenRouter API
-				"anthropic/claude-4.5-sonnet", // Not yet available in OpenRouter API
+				"anthropic/claude-sonnet-4.5", // Not yet available in OpenRouter API
 			])
 
 			const expectedComputerUseModels = Array.from(OPEN_ROUTER_COMPUTER_USE_MODELS)
@@ -136,7 +136,7 @@ describe("OpenRouter API", () => {
 				"google/gemini-2.5-flash-lite-preview-06-17",
 				"google/gemini-2.5-pro",
 				"anthropic/claude-opus-4.1", // Not yet available in OpenRouter API
-				"anthropic/claude-4.5-sonnet", // Not yet available in OpenRouter API
+				"anthropic/claude-sonnet-4.5", // Not yet available in OpenRouter API
 			])
 
 			const expectedReasoningBudgetModels = Array.from(OPEN_ROUTER_REASONING_BUDGET_MODELS)