diff --git a/packages/types/src/providers/zai.ts b/packages/types/src/providers/zai.ts
index 3dcc352b1d0..e21fcc698bf 100644
--- a/packages/types/src/providers/zai.ts
+++ b/packages/types/src/providers/zai.ts
@@ -17,7 +17,6 @@ export const internationalZAiModels = {
 		supportsImages: false,
 		supportsPromptCache: true,
 		supportsNativeTools: true,
-		supportsReasoningBinary: true,
 		inputPrice: 0.6,
 		outputPrice: 2.2,
 		cacheWritesPrice: 0,
@@ -94,7 +93,6 @@ export const internationalZAiModels = {
 		supportsImages: false,
 		supportsPromptCache: true,
 		supportsNativeTools: true,
-		supportsReasoningBinary: true,
 		inputPrice: 0.6,
 		outputPrice: 2.2,
 		cacheWritesPrice: 0,
@@ -125,7 +123,6 @@ export const mainlandZAiModels = {
 		supportsImages: false,
 		supportsPromptCache: true,
 		supportsNativeTools: true,
-		supportsReasoningBinary: true,
 		inputPrice: 0.29,
 		outputPrice: 1.14,
 		cacheWritesPrice: 0,
@@ -202,7 +199,6 @@ export const mainlandZAiModels = {
 		supportsImages: false,
 		supportsPromptCache: true,
 		supportsNativeTools: true,
-		supportsReasoningBinary: true,
 		inputPrice: 0.29,
 		outputPrice: 1.14,
 		cacheWritesPrice: 0,
diff --git a/src/api/providers/__tests__/zai.spec.ts b/src/api/providers/__tests__/zai.spec.ts
index b292b486136..083fdc13ef8 100644
--- a/src/api/providers/__tests__/zai.spec.ts
+++ b/src/api/providers/__tests__/zai.spec.ts
@@ -295,143 +295,5 @@ describe("ZAiHandler", () => {
 				undefined,
 			)
 		})
-
-		describe("Reasoning functionality", () => {
-			it("should include thinking parameter when enableReasoningEffort is true and model supports reasoning in createMessage", async () => {
-				const handlerWithReasoning = new ZAiHandler({
-					apiModelId: "glm-4.6", // GLM-4.6 has supportsReasoningBinary: true
-					zaiApiKey: "test-zai-api-key",
-					zaiApiLine: "international_coding",
-					enableReasoningEffort: true,
-				})
-
-				mockCreate.mockImplementationOnce(() => {
-					return {
-						[Symbol.asyncIterator]: () => ({
-							async next() {
-								return { done: true }
-							},
-						}),
-					}
-				})
-
-				const systemPrompt = "Test system prompt"
-				const messages: Anthropic.Messages.MessageParam[] = [{ role: "user", content: "Test message" }]
-
-				const messageGenerator = handlerWithReasoning.createMessage(systemPrompt, messages)
-				await messageGenerator.next()
-
-				expect(mockCreate).toHaveBeenCalledWith(
-					expect.objectContaining({
-						thinking: { type: "enabled" },
-					}),
-					undefined,
-				)
-			})
-
-			it("should not include thinking parameter when enableReasoningEffort is false in createMessage", async () => {
-				const handlerWithoutReasoning = new ZAiHandler({
-					apiModelId: "glm-4.6", // GLM-4.6 has supportsReasoningBinary: true
-					zaiApiKey: "test-zai-api-key",
-					zaiApiLine: "international_coding",
-					enableReasoningEffort: false,
-				})
-
-				mockCreate.mockImplementationOnce(() => {
-					return {
-						[Symbol.asyncIterator]: () => ({
-							async next() {
-								return { done: true }
-							},
-						}),
-					}
-				})
-
-				const systemPrompt = "Test system prompt"
-				const messages: Anthropic.Messages.MessageParam[] = [{ role: "user", content: "Test message" }]
-
-				const messageGenerator = handlerWithoutReasoning.createMessage(systemPrompt, messages)
-				await messageGenerator.next()
-
-				expect(mockCreate).toHaveBeenCalledWith(
-					expect.not.objectContaining({
-						thinking: expect.anything(),
-					}),
-					undefined,
-				)
-			})
-
-			it("should not include thinking parameter when model does not support reasoning in createMessage", async () => {
-				const handlerWithNonReasoningModel = new ZAiHandler({
-					apiModelId: "glm-4-32b-0414-128k", // This model doesn't have supportsReasoningBinary: true
-					zaiApiKey: "test-zai-api-key",
-					zaiApiLine: "international_coding",
-					enableReasoningEffort: true,
-				})
-
-				mockCreate.mockImplementationOnce(() => {
-					return {
-						[Symbol.asyncIterator]: () => ({
-							async next() {
-								return { done: true }
-							},
-						}),
-					}
-				})
-
-				const systemPrompt = "Test system prompt"
-				const messages: Anthropic.Messages.MessageParam[] = [{ role: "user", content: "Test message" }]
-
-				const messageGenerator = handlerWithNonReasoningModel.createMessage(systemPrompt, messages)
-				await messageGenerator.next()
-
-				expect(mockCreate).toHaveBeenCalledWith(
-					expect.not.objectContaining({
-						thinking: expect.anything(),
-					}),
-					undefined,
-				)
-			})
-
-			it("should include thinking parameter when enableReasoningEffort is true and model supports reasoning in completePrompt", async () => {
-				const handlerWithReasoning = new ZAiHandler({
-					apiModelId: "glm-4.5", // GLM-4.5 has supportsReasoningBinary: true
-					zaiApiKey: "test-zai-api-key",
-					zaiApiLine: "international_coding",
-					enableReasoningEffort: true,
-				})
-
-				const expectedResponse = "This is a test response"
-				mockCreate.mockResolvedValueOnce({ choices: [{ message: { content: expectedResponse } }] })
-
-				await handlerWithReasoning.completePrompt("test prompt")
-
-				expect(mockCreate).toHaveBeenCalledWith(
-					expect.objectContaining({
-						thinking: { type: "enabled" },
-					}),
-				)
-			})
-
-			it("should not include thinking parameter when enableReasoningEffort is false in completePrompt", async () => {
-				const handlerWithoutReasoning = new ZAiHandler({
-					apiModelId: "glm-4.5", // GLM-4.5 has supportsReasoningBinary: true
-					zaiApiKey: "test-zai-api-key",
-					zaiApiLine: "international_coding",
-					enableReasoningEffort: false,
-				})
-
-				const expectedResponse = "This is a test response"
-				mockCreate.mockResolvedValueOnce({ choices: [{ message: { content: expectedResponse } }] })
-
-				await handlerWithoutReasoning.completePrompt("test prompt")
-
-				expect(mockCreate).toHaveBeenCalledWith(
-					expect.not.objectContaining({
-						thinking: expect.anything(),
-					}),
-				)
-			})
-		})
 	})
 })