diff --git a/src/claude/executor.ts b/src/claude/executor.ts
index 1b6db72..27775e8 100644
--- a/src/claude/executor.ts
+++ b/src/claude/executor.ts
@@ -29,6 +29,7 @@ import type { ClaudeResult, CompactResult, ExecuteOptions, ProgressCallback, Tur
 // Anthropic API 定价（per million tokens）
 // https://docs.anthropic.com/en/docs/about-claude/pricing
 const MODEL_PRICING: Record<string, { input: number; output: number; cacheWrite: number; cacheRead: number }> = {
+  'claude-opus-5':            { input: 5,   output: 25,  cacheWrite: 6.25,  cacheRead: 0.50 },
   'claude-opus-4-8':          { input: 5,   output: 25,  cacheWrite: 6.25,  cacheRead: 0.50 },
   'claude-opus-4-7':          { input: 5,   output: 25,  cacheWrite: 6.25,  cacheRead: 0.50 },
   'claude-opus-4-6':          { input: 5,   output: 25,  cacheWrite: 6.25,  cacheRead: 0.50 },
diff --git a/src/config.ts b/src/config.ts
index 313b2c6..bb735a9 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -103,8 +103,8 @@ export const config = {
      * 同时兜底真正挂死的工具(如等待 stdin 的命令)。区别于 timeoutSeconds：工具执行期间不算"空闲"。
      */
     toolTimeoutSeconds: parseInt(process.env.CLAUDE_TOOL_TIMEOUT || '900', 10),
-    /** 模型名称，默认 claude-opus-4-8 (Opus 4.8) */
-    model: process.env.CLAUDE_MODEL || 'claude-opus-4-8',
+    /** 模型名称，默认 claude-opus-5 (Opus 5) */
+    model: process.env.CLAUDE_MODEL || 'claude-opus-5',
     /** thinking 模式: 'adaptive' (自适应思考) | 'disabled' */
     thinking: (process.env.CLAUDE_THINKING || 'adaptive') as 'adaptive' | 'disabled',
     /** effort 等级: 'low' | 'medium' | 'high' | 'xhigh' | 'max'（xhigh: 比 high 更深，Opus 4.7+） */