diff --git a/README.md b/README.md
index 4c4856d1..41a124c7 100644
--- a/README.md
+++ b/README.md
@@ -189,8 +189,8 @@ from tradingagents.default_config import DEFAULT_CONFIG
 
 config = DEFAULT_CONFIG.copy()
 config["llm_provider"] = "openai"        # openai, google, anthropic, xai, openrouter, ollama
-config["deep_think_llm"] = "gpt-5.2"     # Model for complex reasoning
-config["quick_think_llm"] = "gpt-5-mini" # Model for quick tasks
+config["deep_think_llm"] = "gpt-5.4"     # Model for complex reasoning
+config["quick_think_llm"] = "gpt-5.4-mini" # Model for quick tasks
 config["max_debate_rounds"] = 2
 
 ta = TradingAgentsGraph(debug=True, config=config)
diff --git a/main.py b/main.py
index 26cab658..c94fde32 100644
--- a/main.py
+++ b/main.py
@@ -8,8 +8,8 @@ load_dotenv()
 
 # Create a custom config
 config = DEFAULT_CONFIG.copy()
-config["deep_think_llm"] = "gpt-5-mini"  # Use a different model
-config["quick_think_llm"] = "gpt-5-mini"  # Use a different model
+config["deep_think_llm"] = "gpt-5.4-mini"  # Use a different model
+config["quick_think_llm"] = "gpt-5.4-mini"  # Use a different model
 config["max_debate_rounds"] = 1  # Increase debate rounds
 
 # Configure data vendors (default uses yfinance, no extra API keys needed)
diff --git a/tradingagents/default_config.py b/tradingagents/default_config.py
index 31952c00..26a4e4d2 100644
--- a/tradingagents/default_config.py
+++ b/tradingagents/default_config.py
@@ -9,8 +9,8 @@ DEFAULT_CONFIG = {
     ),
     # LLM settings
     "llm_provider": "openai",
-    "deep_think_llm": "gpt-5.2",
-    "quick_think_llm": "gpt-5-mini",
+    "deep_think_llm": "gpt-5.4",
+    "quick_think_llm": "gpt-5.4-mini",
     "backend_url": "https://api.openai.com/v1",
     # Provider-specific thinking configuration
     "google_thinking_level": None,      # "high", "minimal", etc.
diff --git a/tradingagents/llm_clients/model_catalog.py b/tradingagents/llm_clients/model_catalog.py
index f147c5e1..91e1659c 100644
--- a/tradingagents/llm_clients/model_catalog.py
+++ b/tradingagents/llm_clients/model_catalog.py
@@ -11,15 +11,15 @@ ProviderModeOptions = Dict[str, Dict[str, List[ModelOption]]]
 MODEL_OPTIONS: ProviderModeOptions = {
     "openai": {
         "quick": [
-            ("GPT-5 Mini - Balanced speed, cost, and capability", "gpt-5-mini"),
-            ("GPT-5 Nano - High-throughput, simple tasks", "gpt-5-nano"),
+            ("GPT-5.4 Mini - Fast, strong coding and tool use", "gpt-5.4-mini"),
+            ("GPT-5.4 Nano - Cheapest, high-volume tasks", "gpt-5.4-nano"),
             ("GPT-5.4 - Latest frontier, 1M context", "gpt-5.4"),
             ("GPT-4.1 - Smartest non-reasoning model", "gpt-4.1"),
         ],
         "deep": [
             ("GPT-5.4 - Latest frontier, 1M context", "gpt-5.4"),
             ("GPT-5.2 - Strong reasoning, cost-effective", "gpt-5.2"),
-            ("GPT-5 Mini - Balanced speed, cost, and capability", "gpt-5-mini"),
+            ("GPT-5.4 Mini - Fast, strong coding and tool use", "gpt-5.4-mini"),
             ("GPT-5.4 Pro - Most capable, expensive ($30/$180 per 1M tokens)", "gpt-5.4-pro"),
         ],
     },