app.py

import streamlit as st
from g4f import ChatCompletion

# List of available models
models = [
    "gpt-4o", "gpt-4o-mini", "gpt-4",
    "gpt-4-turbo", "gpt-3.5-turbo",
    "claude-3.7-sonnet", "o3-mini", "o1", "claude-3.5", "llama-3.1-405b", "gemini-flash", "blackboxai-pro", "openchat-3.5", "glm-4-9B", "blackboxai"
]

# Initialize chat history
if "messages" not in st.session_state:
    st.session_state.messages = []

# Streamlit app title
st.title("Chat with AI Models")

# Model selection
selected_model = st.selectbox("Choose a model:", models)

# Display chat messages from history
for message in st.session_state.messages:
    with st.chat_message(message["role"]):
        st.markdown(message["content"])

# User input
if user_input := st.chat_input("What do you want to ask?"):
    # Display user message
    st.chat_message("user").markdown(user_input)
    st.session_state.messages.append({"role": "user", "content": user_input})

    # Get response from selected model
    response = ChatCompletion.create(
        model=selected_model,
        messages=st.session_state.messages
    )

    # Check and handle response type
    if isinstance(response, str):
        response_content = response  # Directly use if it's a string
    else:
        try:
            response_content = response['choices'][0]['message']['content']
        except (IndexError, KeyError):
            response_content = "Error: Unexpected response structure."

    # Display assistant response
    with st.chat_message("assistant"):
        st.markdown(response_content)

    # Add assistant response to chat history
    st.session_state.messages.append({"role": "assistant", "content": response_content})