diff --git a/apps/setting/models_provider/impl/aws_bedrock_model_provider/model/llm.py b/apps/setting/models_provider/impl/aws_bedrock_model_provider/model/llm.py
index 510ef1339..bfaf9f17b 100644
--- a/apps/setting/models_provider/impl/aws_bedrock_model_provider/model/llm.py
+++ b/apps/setting/models_provider/impl/aws_bedrock_model_provider/model/llm.py
@@ -10,18 +10,20 @@ def get_max_tokens_keyword(model_name):
     :param model_name: 模型名称字符串
     :return: 对应的 max_tokens 关键字字符串
     """
-    if 'amazon' in model_name:
-        return 'maxTokenCount'
-    elif 'anthropic' in model_name:
-        return 'max_tokens_to_sample'
-    elif 'ai21' in model_name:
+    maxTokens = ["ai21.j2-ultra-v1", "ai21.j2-mid-v1"]
+    # max_tokens_to_sample = ["anthropic.claude-v2:1", "anthropic.claude-v2", "anthropic.claude-instant-v1"]
+    maxTokenCount = ["amazon.titan-text-lite-v1", "amazon.titan-text-express-v1"]
+    max_new_tokens = [
+        "us.meta.llama3-2-1b-instruct-v1:0", "us.meta.llama3-2-3b-instruct-v1:0", "us.meta.llama3-2-11b-instruct-v1:0",
+        "us.meta.llama3-2-90b-instruct-v1:0"]
+    if model_name in maxTokens:
         return 'maxTokens'
-    elif 'cohere' in model_name or 'mistral' in model_name:
-        return 'max_tokens'
-    elif 'meta' in model_name:
-        return 'max_gen_len'
+    elif model_name in maxTokenCount:
+        return 'maxTokenCount'
+    elif model_name in max_new_tokens:
+        return 'max_new_tokens'
     else:
-        raise ValueError("Unsupported model supplier in model_name.")
+        return 'max_tokens'
 
 
 class BedrockModel(MaxKBBaseModel, BedrockChat):
diff --git a/pyproject.toml b/pyproject.toml
index 785dae1cc..5cd23bbf3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,6 @@ cgroups = "^0.1.0"
 wasm-exec = "^0.1.9"
 
 boto3 = "^1.34.151"
-langchain-aws = "^0.1.13"
 tencentcloud-sdk-python = "^3.0.1205"
 xinference-client = "^0.14.0.post1"
 psutil = "^6.0.0"