diff --git a/.github/workflows/pr-review.yml b/.github/workflows/pr-review.yml
index 7ffb812e7..8f8570b88 100644
--- a/.github/workflows/pr-review.yml
+++ b/.github/workflows/pr-review.yml
@@ -25,8 +25,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           OPENAI_KEY: ${{ secrets.DOUBAO_API_KEY }}
-          OPENAI.API_BASE: "https://ark.cn-beijing.volces.com/api/coding/v3"
-          config.model: "ark-code-latest"
+          OPENAI.API_BASE: "https://ark.cn-beijing.volces.com/api/v3"
           github_action_config.auto_review: "true"
-          github_action_config.auto_describe: "true"
+          github_action_config.auto_describe: "false"
           github_action_config.auto_improve: "true"
diff --git a/.pr_agent.toml b/.pr_agent.toml
index 2c7ba7310..5396cecba 100644
--- a/.pr_agent.toml
+++ b/.pr_agent.toml
@@ -17,6 +17,10 @@
 # ---------------------------------------------------------------------------
 [config]
 output_relevant_configurations = false
+# Use Ark token-billed Chat API instead of Coding Plan.
+model = "doubao-seed-2-0-code-preview-260215"
+fallback_models = []
+custom_model_max_tokens = 256000
 # Use high reasoning for this complex polyglot codebase with subtle async/
 # concurrency bugs. Worth the extra latency for quality.
 reasoning_effort = "high"
diff --git a/tests/agfs/conftest.py b/tests/agfs/conftest.py
index 0b41a614e..20dbe1f35 100644
--- a/tests/agfs/conftest.py
+++ b/tests/agfs/conftest.py
@@ -6,7 +6,6 @@
 
 import pytest
 
-
 @pytest.fixture(scope="session")
 def agfs_test_root():
     """Root directory for AGFS tests."""