diff --git a/src/seclab_taskflows/configs/model_config.yaml b/src/seclab_taskflows/configs/model_config.yaml
index 4adf9ac..35acb34 100644
--- a/src/seclab_taskflows/configs/model_config.yaml
+++ b/src/seclab_taskflows/configs/model_config.yaml
@@ -5,8 +5,8 @@ seclab-taskflow-agent:
   version: "1.0"
   filetype: model_config
 models:
-   code_analysis: gpt-5.4
-   general_tasks: gpt-5.4-mini
+   code_analysis: gpt-6-sol
+   general_tasks: gpt-6-luna
    triage: claude-sonnet-4.6
 model_settings:
   code_analysis:
diff --git a/src/seclab_taskflows/configs/model_config_lowercost.yaml b/src/seclab_taskflows/configs/model_config_lowercost.yaml
index 7aa2c72..6e6082a 100644
--- a/src/seclab_taskflows/configs/model_config_lowercost.yaml
+++ b/src/seclab_taskflows/configs/model_config_lowercost.yaml
@@ -5,10 +5,12 @@ seclab-taskflow-agent:
   version: "1.0"
   filetype: model_config
 models:
-   code_analysis: gpt-5.4-mini
-   general_tasks: gpt-5.4-mini
+   code_analysis: gpt-6-luna
+   general_tasks: gpt-6-luna
 model_settings:
   code_analysis:
     api_type: responses
+    reasoning:
+      effort: high
   general_tasks:
     api_type: responses