feat(opencode): expose High/Max thinking variants for GLM-5.2 (#32446)

Co-authored-by: Aiden Cline <aidenpcline@gmail.com>

packages/opencode/src/provider/transform.ts

@@ -666,6 +666,9 @@ export function variants(model: Provider.Model): Record<string, Record<string, a
   if (!model.capabilities.reasoning) return {}
 
   const id = model.id.toLowerCase()
+  const glm52 = ["glm-5.2", "glm-5-2", "glm-5p2"].some(
+    (name) => id.includes(name) || model.api.id.toLowerCase().includes(name),
+  )
   if (
     model.api.id.toLowerCase().includes("minimax-m3") &&
     ["@ai-sdk/anthropic", "@ai-sdk/openai-compatible"].includes(model.api.npm)
@@ -677,13 +680,32 @@ export function variants(model: Provider.Model): Record<string, Record<string, a
   }
   const adaptiveThinkingOmitted = anthropicOmitsThinking(model.api.id)
   const adaptiveEfforts = anthropicAdaptiveEfforts(model.api.id)
+  if (glm52 && model.api.npm === "@openrouter/ai-sdk-provider") {
+    // OpenRouter maps xhigh to GLM-5.2's native max effort.
+    return {
+      high: { reasoning: { effort: "high" } },
+      xhigh: { reasoning: { effort: "xhigh" } },
+    }
+  }
+  if (glm52 && model.api.npm === "@ai-sdk/openai-compatible") {
+    return {
+      high: { reasoningEffort: "high" },
+      max: { reasoningEffort: "max" },
+    }
+  }
+  if (glm52 && model.api.npm === "@ai-sdk/anthropic") {
+    return {
+      high: { effort: "high" },
+      max: { effort: "max" },
+    }
+  }
   if (
     id.includes("deepseek-chat") ||
     id.includes("deepseek-reasoner") ||
     id.includes("deepseek-r1") ||
     id.includes("deepseek-v3") ||
     id.includes("minimax") ||
-    id.includes("glm") ||
+    (id.includes("glm") && !glm52) ||
     id.includes("kimi") ||
     id.includes("k2p") ||
     id.includes("qwen") ||