diff --git a/packages/subagent/subagent-claude-code/tests/real-deepseek.e2e.ts b/packages/subagent/subagent-claude-code/tests/real-deepseek.e2e.ts
index 9a8b3c2716..5611e4fce2 100644
--- a/packages/subagent/subagent-claude-code/tests/real-deepseek.e2e.ts
+++ b/packages/subagent/subagent-claude-code/tests/real-deepseek.e2e.ts
@@ -21,6 +21,7 @@ import * as claudeCode from '../src/index.ts'
 
 const execFileAsync = promisify(execFile)
 const OFFICIAL_DEEPSEEK_BASE_URL = 'https://api.deepseek.com'
+const DEEPSEEK_MODEL = 'deepseek-v4-flash'
 const sdkRoot = dirname(fileURLToPath(
   import.meta.resolve('@anthropic-ai/claude-agent-sdk'),
 ))
@@ -90,11 +91,11 @@ describe.skipIf(!process.env.DEEPSEEK_API_KEY)(
       const env = {
         ANTHROPIC_AUTH_TOKEN: apiKey,
         ANTHROPIC_BASE_URL: `${deepSeekBaseUrl()}/anthropic`,
-        ANTHROPIC_MODEL: 'deepseek-v4-pro[1m]',
-        ANTHROPIC_DEFAULT_OPUS_MODEL: 'deepseek-v4-pro[1m]',
-        ANTHROPIC_DEFAULT_SONNET_MODEL: 'deepseek-v4-pro[1m]',
-        ANTHROPIC_DEFAULT_HAIKU_MODEL: 'deepseek-v4-flash',
-        CLAUDE_CODE_SUBAGENT_MODEL: 'deepseek-v4-flash',
+        ANTHROPIC_MODEL: DEEPSEEK_MODEL,
+        ANTHROPIC_DEFAULT_OPUS_MODEL: DEEPSEEK_MODEL,
+        ANTHROPIC_DEFAULT_SONNET_MODEL: DEEPSEEK_MODEL,
+        ANTHROPIC_DEFAULT_HAIKU_MODEL: DEEPSEEK_MODEL,
+        CLAUDE_CODE_SUBAGENT_MODEL: DEEPSEEK_MODEL,
         CLAUDE_CODE_EFFORT_LEVEL: 'max',
         CLAUDE_CONFIG_DIR: claudeConfig,
         HOME: root,
diff --git a/snapshots/acp/escalation-approved/cordis.yml b/snapshots/acp/escalation-approved/cordis.yml
index e08f3005c3..cc8f9609f9 100644
--- a/snapshots/acp/escalation-approved/cordis.yml
+++ b/snapshots/acp/escalation-approved/cordis.yml
@@ -34,7 +34,7 @@
   name: '@deepseek-ai/dsh-acp'
   config:
     provider: deepseek-official
-    model: deepseek-v4-pro
+    model: deepseek-v4-flash
 
 - id: system-prompt
   name: '@deepseek-ai/dsh-system-prompt'