diff --git a/src/claude/executor.ts b/src/claude/executor.ts
index 8a1fe15..fdc43ef 100644
--- a/src/claude/executor.ts
+++ b/src/claude/executor.ts
@@ -28,6 +28,7 @@ import type { ClaudeResult, ExecuteOptions, ProgressCallback, TurnInfo, ToolCall
 // 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-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 },
   'claude-opus-4-5-20250620': { input: 5,   output: 25,  cacheWrite: 6.25,  cacheRead: 0.50 },
diff --git a/src/config.ts b/src/config.ts
index 87fc79f..b5c6f25 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -68,8 +68,8 @@ export const config = {
     apiBaseUrl: process.env.ANTHROPIC_BASE_URL || '',
     /** 单步空闲超时 (秒)：某步骤长时间无 SDK 消息活动时 abort。不限制总执行时长 */
     timeoutSeconds: parseInt(process.env.CLAUDE_TIMEOUT || '300', 10),
-    /** 模型名称，默认 claude-opus-4-7 (Opus 4.7) */
-    model: process.env.CLAUDE_MODEL || 'claude-opus-4-7',
+    /** 模型名称，默认 claude-opus-4-8 (Opus 4.8) */
+    model: process.env.CLAUDE_MODEL || 'claude-opus-4-8',
     /** 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' | 'max' */