diff --git a/packages/ai/src/providers/xai.ts b/packages/ai/src/providers/xai.ts
index 281a106357..246a1be62b 100644
--- a/packages/ai/src/providers/xai.ts
+++ b/packages/ai/src/providers/xai.ts
@@ -1,25 +1,29 @@
 import { AuthOptions, type ProviderAuthOption } from "../route/auth-options"
 import type { RouteDefaultsInput } from "../route/client"
-import { HttpOptions, ProviderID, type ModelID } from "../schema"
+import { HttpOptions, ProviderID, mergeProviderOptions, type ModelID, type ProviderOptions } from "../schema"
 import * as OpenAICompatibleProfiles from "./openai-compatible-profile"
 import * as OpenAICompatibleChat from "../protocols/openai-compatible-chat"
 import * as OpenAIResponses from "../protocols/openai-responses"
 import { XAIImages } from "../protocols/xai-images"
-import type { OpenAIProviderOptionsInput } from "./openai-options"
+import type { OpenAIOptionsInput } from "./openai-options"
 import type { ProviderPackage } from "../provider-package"
 
 export const id = ProviderID.make("xai")
 
+export type XAIProviderOptionsInput = ProviderOptions & {
+  readonly xai?: OpenAIOptionsInput
+}
+
 export type ModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
   ProviderAuthOption<"optional"> & {
     readonly baseURL?: string
-    readonly providerOptions?: OpenAIProviderOptionsInput
+    readonly providerOptions?: XAIProviderOptionsInput
   }
 
 export interface Settings extends ProviderPackage.Settings {
   readonly apiKey?: string
   readonly baseURL?: string
-  readonly providerOptions?: OpenAIProviderOptionsInput
+  readonly providerOptions?: XAIProviderOptionsInput
 }
 
 export type { XAIImageOptions } from "../protocols/xai-images"
@@ -33,8 +37,10 @@ const configuredResponsesRoute = (input: ModelOptions) => {
   return OpenAIResponses.route.with({
     ...rest,
     provider: id,
+    providerMetadataKey: "xai",
     endpoint: { baseURL: baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL },
     auth: auth(input),
+    providerOptions: mergeProviderOptions({ xai: { store: false } }, input.providerOptions),
   })
 }
 
@@ -43,6 +49,7 @@ const configuredChatRoute = (input: ModelOptions) => {
   return OpenAICompatibleChat.route.with({
     ...rest,
     provider: id,
+    providerMetadataKey: "xai",
     endpoint: { baseURL: baseURL ?? OpenAICompatibleProfiles.profiles.xai.baseURL },
     auth: auth(input),
   })
@@ -51,8 +58,8 @@ const configuredChatRoute = (input: ModelOptions) => {
 export const configure = (input: ModelOptions = {}) => {
   const responsesRoute = configuredResponsesRoute(input)
   const chatRoute = configuredChatRoute(input)
-  const responses = (modelID: string | ModelID) => responsesRoute.model<OpenAIProviderOptionsInput>({ id: modelID })
-  const chat = (modelID: string | ModelID) => chatRoute.model<OpenAIProviderOptionsInput>({ id: modelID })
+  const responses = (modelID: string | ModelID) => responsesRoute.model<XAIProviderOptionsInput>({ id: modelID })
+  const chat = (modelID: string | ModelID) => chatRoute.model<XAIProviderOptionsInput>({ id: modelID })
   const image = (modelID: string | ModelID) =>
     XAIImages.model({
       id: modelID,
@@ -72,7 +79,7 @@ export const configure = (input: ModelOptions = {}) => {
 }
 
 export const provider = configure()
-export const model: ProviderPackage.Definition<Settings, OpenAIProviderOptionsInput>["model"] = (modelID, settings) =>
+export const model: ProviderPackage.Definition<Settings, XAIProviderOptionsInput>["model"] = (modelID, settings) =>
   configure({
     apiKey: settings.apiKey,
     baseURL: settings.baseURL,
diff --git a/packages/ai/test/provider-options/xai.types.ts b/packages/ai/test/provider-options/xai.types.ts
index 619f543083..ab1a99c46b 100644
--- a/packages/ai/test/provider-options/xai.types.ts
+++ b/packages/ai/test/provider-options/xai.types.ts
@@ -3,11 +3,11 @@ import { XAI } from "../../src/providers"
 
 const model = XAI.provider.model("grok-4")
 
-LLM.request({ model, prompt: "Hello", providerOptions: { openai: { reasoningEffort: "high" } } })
+LLM.request({ model, prompt: "Hello", providerOptions: { xai: { reasoningEffort: "high" } } })
 
 LLM.request({
   model,
   prompt: "Hello",
   // @ts-expect-error xAI's OpenAI-compatible reasoning effort must be a string.
-  providerOptions: { openai: { reasoningEffort: true } },
+  providerOptions: { xai: { reasoningEffort: true } },
 })
diff --git a/packages/ai/test/provider-package.test.ts b/packages/ai/test/provider-package.test.ts
index 0bb1b1441b..9748289b80 100644
--- a/packages/ai/test/provider-package.test.ts
+++ b/packages/ai/test/provider-package.test.ts
@@ -47,7 +47,7 @@ describe("provider package entrypoints", () => {
     })
     const xai = XAI.model("grok-4", {
       ...settings,
-      providerOptions: { openai: { reasoningEffort: "high" } },
+      providerOptions: { xai: { reasoningEffort: "high" } },
     })
 
     for (const selected of [openrouter, xai]) {
@@ -57,7 +57,7 @@ describe("provider package entrypoints", () => {
       expect(selected.route.defaults.limits).toEqual(settings.limits)
     }
     expect(openrouter.route.defaults.providerOptions).toEqual({ openrouter: { usage: true } })
-    expect(xai.route.defaults.providerOptions).toEqual({ openai: { reasoningEffort: "high", store: false } })
+    expect(xai.route.defaults.providerOptions).toMatchObject({ xai: { reasoningEffort: "high", store: false } })
   })
 
   test("maps package settings onto the executable model", () => {
diff --git a/packages/core/src/model-resolver.ts b/packages/core/src/model-resolver.ts
index 5cce0e4362..04c737e914 100644
--- a/packages/core/src/model-resolver.ts
+++ b/packages/core/src/model-resolver.ts
@@ -242,7 +242,7 @@ const nativeProviderOptions = (packageName: string | undefined, settings: Readon
   if (Object.keys(values).length === 0) return undefined
   if (packageName === "@ai-sdk/google") return { gemini: values }
   if (packageName === "@openrouter/ai-sdk-provider") return { openrouter: values }
-  if (packageName === "@ai-sdk/xai") return { openai: values }
+  if (packageName === "@ai-sdk/xai") return { xai: values }
   return undefined
 }
 
diff --git a/packages/core/test/model-resolver.test.ts b/packages/core/test/model-resolver.test.ts
index d48db827d0..2f67a60b43 100644
--- a/packages/core/test/model-resolver.test.ts
+++ b/packages/core/test/model-resolver.test.ts
@@ -552,7 +552,7 @@ describe("ModelResolver", () => {
       const packages = [
         ["@ai-sdk/google", "@opencode-ai/ai/providers/google", "gemini"],
         ["@openrouter/ai-sdk-provider", "@opencode-ai/ai/providers/openrouter", "openrouter"],
-        ["@ai-sdk/xai", "@opencode-ai/ai/providers/xai", "openai"],
+        ["@ai-sdk/xai", "@opencode-ai/ai/providers/xai", "xai"],
       ] as const
 
       yield* Effect.forEach(packages, ([catalogPackage, nativePackage, optionKey]) =>
@@ -611,7 +611,8 @@ describe("ModelResolver", () => {
       expect(openrouter.route.defaults.providerOptions).toEqual({ openrouter: { reasoning: { effort: "high" } } })
       expect(xai.route.id).toBe("openai-responses")
       expect(xai.route.defaults.providerOptions).toEqual({
-        openai: { reasoningEffort: "high", store: false },
+        openai: { store: false },
+        xai: { reasoningEffort: "high", store: false },
       })
     }),
   )