tweak: adjust variant logic for muse (#36079)

packages/opencode/src/provider/provider.ts

@@ -207,6 +207,13 @@ function custom(dep: CustomDep): Record<string, CustomLoader> {
         },
         options: { headerTimeout: OPENAI_HEADER_TIMEOUT_DEFAULT },
       }),
+    meta: () =>
+      Effect.succeed({
+        autoload: false,
+        async getModel(sdk: any, modelID: string, _options?: Record<string, any>) {
+          return sdk.responses(modelID)
+        },
+      }),
     xai: () =>
       Effect.succeed({
         autoload: false,

packages/opencode/src/provider/transform.ts

@@ -884,6 +884,18 @@ export function variants(model: Provider.Model): Record<string, Record<string, a
       )
     case "@ai-sdk/amazon-bedrock/mantle":
     case "@ai-sdk/openai": {
+      if (model.providerID === "meta") {
+        return Object.fromEntries(
+          OPENAI_EFFORTS.map((effort) => [
+            effort,
+            {
+              reasoningEffort: effort,
+              reasoningSummary: "auto",
+              include: INCLUDE_ENCRYPTED_REASONING,
+            },
+          ]),
+        )
+      }
       // https://v5.ai-sdk.dev/providers/ai-sdk-providers/openai
       const efforts = openaiReasoningEfforts(model.api.id, model.release_date)
       return Object.fromEntries(
@@ -1128,11 +1140,20 @@ export function options(input: {
 
   if (
     input.providerOptions?.setCacheKey !== false &&
-    (input.model.providerID === "openai" || input.model.api.npm === "@ai-sdk/xai" || input.providerOptions?.setCacheKey)
+    (input.model.providerID === "openai" ||
+      input.model.api.npm === "@ai-sdk/openai" ||
+      input.model.api.npm === "@ai-sdk/xai" ||
+      input.providerOptions?.setCacheKey)
   ) {
     result["promptCacheKey"] = input.sessionID
   }
 
+  if (input.model.providerID === "meta" && input.model.api.npm === "@ai-sdk/openai") {
+    result["reasoningEffort"] = "high"
+    result["reasoningSummary"] = "auto"
+    result["include"] = INCLUDE_ENCRYPTED_REASONING
+  }
+
   if (input.model.api.npm === "@ai-sdk/google" || input.model.api.npm === "@ai-sdk/google-vertex") {
     if (input.model.capabilities.reasoning) {
       result["thinkingConfig"] = {