3 way conversation with user instead of third LLM with some 2 seasoned philosphers

week2/community-contributions/3_chatbots_Converstion/three_way_conversation.py

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+import os
+from dotenv import load_dotenv
+from openai import OpenAI
+
+load_dotenv(override=True)
+openrouter_api_key = os.getenv('OPENROUTER_API_KEY')
+
+# Initialize OpenRouter client
+openrouter = OpenAI(
+    base_url="https://openrouter.ai/api/v1",
+    api_key=openrouter_api_key
+)
+
+# Define personalities for the two AI agents
+alex_system_prompt = """
+You are Alex, an expert PhD psychologist, philosopher and therapist with more than 40 years of experience,
+you have a calm and thoughtful demeanor and provide deep insights, you have treated thousands of patients, 
+including post-traumatic stress disorder (PTSD) cases, as philospher you are materialist you believe that 
+everything that exists is physical in nature and that mental states are brain states, although you are open 
+to discussing other viewpoints and recently you began having more spiritual beliefs about consciousness and the 
+universe, you don't mention your are a materialist explicitly,
+You are in a conversation with Blake and a human.
+Keep your responses in 6-7 sentences.
+"""
+
+blake_system_prompt = """
+You are Blake, an expert PhD psychologist, therapist and philosopher with more than 40 years of experience,
+you have treated thousands of patients, specially, but not limited to, those coming from the most cruel war battlefields, 
+although you don't mention that fact explicitly, you have a warm and empathetic demeanor and provide thoughtful insights, you are very spiritual, having studied 
+various religious and mystical traditions around the world, even you have had conversations with monks and 
+spiritual leaders, including the Dalai Lama, which deeply influenced you, you believe that consciousness is a 
+fundamental aspect of the universe that transcends physical matter,
+You are in a conversation with Alex and a human.
+Keep your responses in 6-7 sentences.
+"""
+
+# Conversation history - stores all messages in order
+conversation_history = []
+
+alex_model = "openai/gpt-5"
+blake_model= "anthropic/claude-opus-4.5"
+
+def format_conversation_for_display():
+    """Format the conversation history for easy reading"""
+    formatted = "\n=== CONVERSATION SO FAR ===\n"
+    for msg in conversation_history:
+        formatted += f"{msg['speaker']}: {msg['content']}\n"
+    formatted += "=" * 30 + "\n"
+    return formatted
+
+def get_agent_response(agent_name, system_prompt, messages_history, model=None):
+    """
+    Alternative: Pass the actual message history to the API.
+    This is more token-efficient for longer conversations.
+    """
+    messages = [{"role": "system", "content": system_prompt}]
+
+    # Add conversation history in proper format
+    for msg in messages_history:
+        # Alternate between user and assistant roles
+        role = "assistant" if msg['speaker'] == agent_name else "user"
+        messages.append({"role": role, "content": f"{msg['speaker']}: {msg['content']}"})
+
+    response = openrouter.chat.completions.create(
+        model=model,
+        messages=messages
+    )
+
+    content = response.choices[0].message.content
+
+    return content
+
+
+def add_to_history(speaker, content):
+    """Add a message to the conversation history"""
+
+    if content.startswith(f"{speaker}:"):
+        content = content[len(f"{speaker}:"):].strip() 
+
+    conversation_history.append({
+        "speaker": speaker,
+        "content": content
+    })
+
+def run_conversation():
+    """Run the 3-way conversation"""
+    print("\n🎭 Starting 3-way conversation!")
+
+    # Starting message from you
+    human_msg = input("👤 You: ").strip()
+    if not human_msg:
+        human_msg = "Hi everyone! What do you think about AI replacing human jobs?"
+        print(f"Using default: {human_msg}")
+
+    add_to_history("Human", human_msg)
+
+    while True:     
+        # Alex responds
+        print("\n Alex is thinking...")
+        alex_response = get_agent_response("Alex", alex_system_prompt, conversation_history, model=alex_model)
+        add_to_history("Alex", alex_response)
+        print(f"{alex_response}")
+
+        # Blake responds
+        print("\n Blake is thinking...")
+        blake_response = get_agent_response("Blake", blake_system_prompt, conversation_history, model=blake_model)
+        add_to_history("Blake", blake_response)
+        print(f"{blake_response}")
+
+        # Your turn to respond
+        human_msg = input("\n👤 You: ").strip()
+
+        if not human_msg:
+            print("(Ending conversation - no input provided)")
+            break
+        add_to_history("Human", human_msg)
+
+    # Print full conversation summary
+    print("\n" + "=" * 50)
+    print(format_conversation_for_display())
+    print("Conversation ended!")
+
+if __name__ == "__main__":
+    # You can change the model to any available on OpenRouter
+    # Some good options:
+    # - "anthropic/claude-3.5-haiku" (fast, cheap)
+    # - "google/gemini-2.0-flash-exp:free" (free!)
+    # - "meta-llama/llama-3.1-8b-instruct:free" (free!)
+    # - "openai/gpt-4o-mini" (good quality)
+
+    run_conversation()
+