diff --git a/environments/eval_environments/gsm8k_eval.py b/environments/eval_environments/gsm8k_eval.py
index 9cacb5b4..06f4c28e 100644
--- a/environments/eval_environments/gsm8k_eval.py
+++ b/environments/eval_environments/gsm8k_eval.py
@@ -20,7 +20,7 @@ Supports thinking mode with <think></think> tags for extended reasoning.
 import asyncio
 import random
 from concurrent.futures import ProcessPoolExecutor
-from typing import Dict, List, Optional
+from typing import Dict, List, Optional, Tuple
 
 import wandb
 from datasets import load_dataset
@@ -147,6 +147,26 @@ class GSM8KEvalEnv(BaseEnv):
     def config_cls(cls) -> type:
         return GSM8KEvalConfig
 
+    @classmethod
+    def config_init(cls) -> Tuple[GSM8KEvalConfig, List[APIServerConfig]]:
+        """Initialize default configuration for the environment."""
+        env_config = GSM8KEvalConfig(
+            tokenizer_name="Qwen/Qwen2.5-3B-Instruct",
+            group_size=1,
+            use_wandb=False,
+            max_num_workers_per_node=128,
+            rollout_server_url="http://localhost:8000",
+            total_steps=1,
+            wandb_name="gsm8k_eval",
+        )
+        server_configs = [
+            APIServerConfig(
+                model_name="Qwen/Qwen2.5-3B-Instruct",
+                base_url="http://localhost:9001/v1",
+            )
+        ]
+        return env_config, server_configs
+
     async def setup(self) -> None:
         """Initialize the environment and load the dataset."""
         # Initialize math executor