diff --git a/simplemind/__init__.py b/simplemind/__init__.py
index fb4d02d..986b3e9 100644
--- a/simplemind/__init__.py
+++ b/simplemind/__init__.py
@@ -1 +1,18 @@
-from .core import SimpleMind
+from .models import Conversation
+
+
+class SimpleMind:
+    def create_conversation(self, *, llm_model=None, llm_provider=None):
+        return Conversation()
+
+    def structured_response(
+        self, *, llm_model=None, llm_provider=None, response_model=None
+    ):
+        pass
+
+
+def create_conversation():
+    return SimpleMind().create_conversation()
+
+
+globals().update(locals())
diff --git a/simplemind/agents/__init__.py b/simplemind/agents/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/simplemind/agents/base.py b/simplemind/agents/base.py
deleted file mode 100644
index cdc32a2..0000000
--- a/simplemind/agents/base.py
+++ /dev/null
@@ -1,7 +0,0 @@
-from abc import ABC, abstractmethod
-
-
-class BaseAgent(ABC):
-    @abstractmethod
-    def decide(self, context, *args, **kwargs):
-        pass
diff --git a/simplemind/chains/__init__.py b/simplemind/chains/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/simplemind/chains/base.py b/simplemind/chains/base.py
deleted file mode 100644
index 41013c7..0000000
--- a/simplemind/chains/base.py
+++ /dev/null
@@ -1,24 +0,0 @@
-from abc import ABC, abstractmethod
-
-
-class BaseChain(ABC):
-    """Abstract base class for implementing chain operations.
-    
-    A Chain represents a processing step that can be executed on input data
-    and should be implemented by concrete classes to define specific behaviors.
-    """
-
-    @abstractmethod
-    def run(self, input_data: str) -> str:
-        """Execute the chain's operation on the input data.
-        
-        Args:
-            input_data: The input string to be processed by the chain.
-            
-        Returns:
-            The processed output string.
-            
-        Raises:
-            ValueError: If the input data is invalid or cannot be processed.
-        """
-        pass
diff --git a/simplemind/chains/reverse_text.py b/simplemind/chains/reverse_text.py
deleted file mode 100644
index cccdcbc..0000000
--- a/simplemind/chains/reverse_text.py
+++ /dev/null
@@ -1,25 +0,0 @@
-from .base import BaseChain
-
-
-class ReverseTextChain(BaseChain):
-    """Chain that reverses input text.
-
-    This chain takes a text input and returns it reversed. For example,
-    "hello" becomes "olleh".
-    """
-
-    def run(self, input_data: str) -> str:
-        """Reverse the input text.
-
-        Args:
-            input_data: The text to reverse.
-
-        Returns:
-            The reversed text.
-
-        Raises:
-            TypeError: If input_data is not a string.
-        """
-        if not isinstance(input_data, str):
-            raise TypeError("Input must be a string")
-        return input_data[::-1]
diff --git a/simplemind/concepts/__init__.py b/simplemind/concepts/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/simplemind/concepts/context.py b/simplemind/concepts/context.py
deleted file mode 100644
index 4e7da47..0000000
--- a/simplemind/concepts/context.py
+++ /dev/null
@@ -1,17 +0,0 @@
-from pydantic import BaseModel
-from typing import Dict, Any
-from simplemind.plugins.base import BasePlugin
-
-
-class Context(BaseModel):
-    model_config = {"arbitrary_types_allowed": True}
-    plugins: Dict[str, BasePlugin] = {}
-
-    def add_plugin(self, name: str, plugin: BasePlugin):
-        self.plugins[name] = plugin
-
-    def execute_plugin(self, name: str, *args, **kwargs):
-        if name in self.plugins:
-            return self.plugins[name].execute(self, *args, **kwargs)
-        else:
-            raise ValueError(f"Plugin '{name}' not found in context.")
diff --git a/simplemind/core/__init__.py b/simplemind/core/__init__.py
deleted file mode 100644
index da9fda1..0000000
--- a/simplemind/core/__init__.py
+++ /dev/null
@@ -1,53 +0,0 @@
-from typing import Dict, Any, Optional
-from .models import AIResponse
-from ..concepts.context import Context
-from ..providers.base import BaseClientProvider
-
-from .config import settings
-
-
-class SimpleMind:
-    """Main class for SimpleMind functionality."""
-
-    def __init__(self, provider: str = "openai", context: Optional[Context] = None):
-        """Initialize SimpleMind with the specified provider."""
-        self.provider = provider
-        self.context = context or Context()
-        self._client = self._get_provider()
-
-    def _get_provider(self) -> BaseClientProvider:
-        """Get the appropriate provider client."""
-        from ..providers.openai import OpenAI
-        from ..providers.anthropic import Anthropic
-
-        # Initialize providers based on environment variables.
-        providers = {}
-        if settings.openai_api_key:
-            providers.update({"openai": OpenAI})
-        if settings.anthropic_api_key:
-            providers.update({"anthropic": Anthropic})
-
-        if self.provider not in providers:
-            raise ValueError(
-                f"Provider '{self.provider}' not supported. Available providers: {list(providers.keys())}"
-            )
-
-        return providers[self.provider]()
-
-    def generate(self, prompt: str, **kwargs) -> AIResponse:
-        """Generate a response using the configured provider."""
-
-        return self._client.message(prompt, **kwargs)
-
-    def create_conversation(self) -> str:
-        """Create a new conversation and return its ID."""
-
-        initial_message = "You are a helpful assistant."
-
-        conversation = self._client.create_conversation(initial_message)
-        return conversation
-
-    def add_message(self, conversation_id: str, message: str) -> AIResponse:
-        """Send a message in an existing conversation."""
-
-        return self._client.add_message(conversation_id, message)
diff --git a/simplemind/core/client.py b/simplemind/core/client.py
deleted file mode 100644
index d8a857a..0000000
--- a/simplemind/core/client.py
+++ /dev/null
@@ -1,68 +0,0 @@
-import os
-from typing import Optional
-
-from .models import Conversation, AIResponse
-from ..concepts.context import Context
-
-from .errors import ProviderError
-from .logger import logger
-
-
-class Client:
-    def __init__(self, api_key=None):
-        self.providers = {}
-
-        # Auto-detect available API keys from environment
-        api_keys = {
-            "openai": os.getenv("OPENAI_API_KEY"),
-            "anthropic": os.getenv("ANTHROPIC_API_KEY"),
-            # Add other providers as needed
-        }
-
-        # Initialize providers for which we have API keys
-        for provider, key in api_keys.items():
-            if key:
-                self.providers[provider] = self._initialize_provider(provider, key)
-
-    def _initialize_provider(self, provider_name, api_key):
-        if provider_name == "openai":
-            from ..providers.openai import OpenAI
-
-            return OpenAI(api_key)
-        elif provider_name == "anthropic":
-            from ..providers.anthropic import Anthropic
-
-            return Anthropic(api_key)
-        # Add other providers as needed
-
-    def create_conversation(
-        self, provider: str = "openai", context: Optional[Context] = None
-    ) -> Conversation:
-        if provider not in self.providers:
-            raise ValueError(f"Provider '{provider}' not supported.")
-        conversation_context = context or Context()
-        return self.providers[provider].create_conversation(
-            initial_message="Hello!", context=conversation_context.model_dump()
-        )
-
-    def _handle_api_error(self, error: Exception, operation: str):
-        """Handle API errors in a consistent way."""
-        logger.error(f"Error during {operation}: {str(error)}")
-        raise ProviderError(f"Failed to {operation}: {str(error)}") from error
-
-    def send_message(
-        self, conversation: Conversation, message: str, provider: str = "openai"
-    ) -> AIResponse:
-        if provider not in self.providers:
-            raise ValueError(f"Provider '{provider}' not supported.")
-        try:
-            return self.providers[provider].send_message(conversation.id, message)
-        except Exception as e:
-            self._handle_api_error(e, "send message")
-
-    @property
-    def available_models(self):
-        available = {}
-        for name, provider in self.providers.items():
-            available[name] = provider.available_models
-        return available
diff --git a/simplemind/core/config.py b/simplemind/core/config.py
deleted file mode 100644
index 1defeaf..0000000
--- a/simplemind/core/config.py
+++ /dev/null
@@ -1,56 +0,0 @@
-from pydantic import Field, field_validator, ValidationError
-from pydantic_settings import BaseSettings
-from typing import Optional, Dict, Set
-
-
-class Settings(BaseSettings):
-    openai_api_key: Optional[str] = Field(None, env="OPENAI_API_KEY")
-    anthropic_api_key: Optional[str] = Field(None, env="ANTHROPIC_API_KEY")
-    ollama_host_url: Optional[str] = Field(None, env="OLLAMA_HOST_URL")
-    default_model: str = Field("gpt-4", env="DEFAULT_MODEL")
-    log_level: str = Field("INFO", env="LOG_LEVEL")
-
-    # Map of provider names to their required environment variables
-    PROVIDER_REQUIREMENTS: Dict[str, str] = {
-        "openai": "openai_api_key",
-        "anthropic": "anthropic_api_key",
-        "ollama": "ollama_host_url",
-    }
-
-    @field_validator("*", mode="before")
-    def check_empty_string(cls, v):
-        if isinstance(v, str) and not v.strip():
-            return None
-        return v
-
-    def validate_provider(self, provider: str) -> bool:
-        """
-        Validate that the necessary API key exists for a given provider.
-        Raises ValueError if the provider is not properly configured.
-        """
-        if provider not in self.PROVIDER_REQUIREMENTS:
-            raise ValueError(f"Unknown provider: {provider}")
-
-        required_key = self.PROVIDER_REQUIREMENTS[provider]
-        if getattr(self, required_key) is None:
-            raise ValueError(
-                f"Missing API key for {provider}. "
-                f"Please set {required_key.upper()} environment variable."
-            )
-        return True
-
-    @property
-    def available_providers(self) -> Set[str]:
-        """Return a set of properly configured providers."""
-        return {
-            provider
-            for provider, key in self.PROVIDER_REQUIREMENTS.items()
-            if getattr(self, key) is not None
-        }
-
-    class Config:
-        env_file = ".env"
-        case_sensitive = False
-
-
-settings = Settings()
diff --git a/simplemind/core/errors.py b/simplemind/core/errors.py
deleted file mode 100644
index 3aaf310..0000000
--- a/simplemind/core/errors.py
+++ /dev/null
@@ -1,22 +0,0 @@
-class SimpleMindError(Exception):
-    """Base exception for SimpleMind errors."""
-
-    pass
-
-
-class ProviderError(SimpleMindError):
-    """Raised when there's an error with the AI provider."""
-
-    pass
-
-
-class ConfigurationError(SimpleMindError):
-    """Raised when there's a configuration error."""
-
-    pass
-
-
-class AuthenticationError(SimpleMindError):
-    """Raised when authentication fails."""
-
-    pass
diff --git a/simplemind/core/logger.py b/simplemind/core/logger.py
deleted file mode 100644
index 8c2e2e7..0000000
--- a/simplemind/core/logger.py
+++ /dev/null
@@ -1,15 +0,0 @@
-import logging
-
-def setup_logger(name: str) -> logging.Logger:
-    logger = logging.getLogger(name)
-    if not logger.hasHandlers():
-        logger.setLevel(logging.INFO)
-        handler = logging.StreamHandler()
-        formatter = logging.Formatter('[%(asctime)s] %(levelname)s - %(message)s')
-        handler.setFormatter(formatter)
-        logger.addHandler(handler)
-    return logger
-
-# Initialize a global logger
-logger = setup_logger("simplemind")
-
diff --git a/simplemind/core/models.py b/simplemind/core/models.py
deleted file mode 100644
index eaac571..0000000
--- a/simplemind/core/models.py
+++ /dev/null
@@ -1,67 +0,0 @@
-from pydantic import BaseModel
-from typing import Any, Dict, List, Optional
-from ..concepts.context import Context
-from datetime import datetime
-
-
-class AIRequest(BaseModel):
-    text: str
-    parameters: Dict[str, Any] = {}
-
-    def __str__(self):
-        return self.text
-
-
-class Message(BaseModel):
-    role: str  # "user", "assistant", "system"
-    content: str
-    created_at: datetime = datetime.now()
-
-
-class Choice(BaseModel):
-    message: Message
-    index: int = 0
-
-
-class AIResponse(BaseModel):
-    choices: List[Choice]
-
-    @property
-    def content(self) -> str:
-        """Helper to get the first message content directly."""
-        return self.choices[0].message.content
-
-
-class Conversation(BaseModel):
-    id: str
-    messages: List[Message] = []
-    context: Optional[Context] = None
-    created_at: datetime = datetime.now()
-    updated_at: datetime = datetime.now()
-
-    def get_messages(self) -> List[Message]:
-        """Returns a list of messages in the conversation."""
-        return self.messages
-
-    def add_message(self, role: str, content: str) -> Message:
-        """Adds a new message to the conversation."""
-        message = Message(role=role, content=content)
-        self.messages.append(message)
-        self.updated_at = datetime.now()
-        return message
-
-    def set_context(self, context: Context):
-        """Sets the context for the conversation."""
-        self.context = context
-
-
-class ConversationRequest(BaseModel):
-    conversation_id: Optional[str] = None
-    message: str
-    context_update: Optional[Dict[str, Any]] = None
-
-
-class ConversationResponse(BaseModel):
-    conversation_id: str
-    messages: List[Message]
-    metadata: Dict[str, Any] = {}
diff --git a/simplemind/models.py b/simplemind/models.py
new file mode 100644
index 0000000..50d931d
--- /dev/null
+++ b/simplemind/models.py
@@ -0,0 +1,54 @@
+import uuid
+from typing import List, Dict, Any, Optional
+from datetime import datetime
+
+from pydantic import BaseModel, Field
+
+from .utils import find_provider
+
+
+class SMBaseModel(BaseModel):
+    date_created: datetime = Field(default_factory=datetime.now)
+
+    def __str__(self):
+        return f"<{self.__class__.__name__} {self.model_dump_json()}>"
+
+
+class Message(SMBaseModel):
+    role: str
+    text: str
+    meta: Dict[str, Any] = {}
+    raw: Optional[Any] = None
+    llm_model: Optional[str] = None
+    llm_provider: Optional[str] = None
+
+    def __str__(self):
+        return f"<Message role={self.role} text={self.text!r}>"
+
+    @classmethod
+    def from_raw_response(cls, *, text, raw):
+        self = cls()
+        self.text = text
+        self.raw = raw
+        return self
+
+
+class Conversation(SMBaseModel):
+    id: str = Field(default_factory=lambda: str(uuid.uuid4()))
+    messages: List[Message] = []
+    llm_model: Optional[str] = None
+    llm_provider: Optional[str] = None
+
+    def __str__(self):
+        return f"<Conversation id={self.id!r}>"
+
+    def add_message(self, role: str, text: str, meta: Dict[str, Any] = {}):
+        """Add a new message to the conversation."""
+        self.messages.append(Message(role=role, text=text, meta=meta))
+
+    def send(
+        self, llm_model: Optional[str] = None, llm_provider: Optional[str] = None
+    ) -> Message:
+        """Send the conversation to the LLM."""
+        provider = find_provider(llm_provider or self.llm_provider)
+        return provider.send_conversation(self)
diff --git a/simplemind/models/base.py b/simplemind/models/base.py
deleted file mode 100644
index 9981ed1..0000000
--- a/simplemind/models/base.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from datetime import datetime
-from typing import Any, Dict, List, Optional
-from pydantic import BaseModel
-
-class Message(BaseModel):
-    role: str
-    content: str
-    created_at: datetime = datetime.now()
-
-class Conversation(BaseModel):
-    id: str
-    messages: List[Message] = []
-    context: Dict[str, Any] = {}
-    created_at: datetime = datetime.now()
-    updated_at: datetime = datetime.now()
-
-    def add_message(self, role: str, content: str) -> Message:
-        message = Message(role=role, content=content)
-        self.messages.append(message)
-        self.updated_at = datetime.now()
-        return message
-
-class AIResponse(BaseModel):
-    text: str
-    response: Any
-    metadata: Dict[str, Any] = {} 
diff --git a/simplemind/plugins/__init__.py b/simplemind/plugins/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/simplemind/plugins/base.py b/simplemind/plugins/base.py
deleted file mode 100644
index f346f70..0000000
--- a/simplemind/plugins/base.py
+++ /dev/null
@@ -1,34 +0,0 @@
-from abc import ABC, abstractmethod
-from typing import Any, Dict, Optional
-
-
-class BasePlugin(ABC):
-    """Base class for all SimpleMind plugins."""
-
-    def __init__(self):
-        self.enabled: bool = True
-        self.name: str = self.__class__.__name__
-
-    @abstractmethod
-    def process(self, context: Dict[str, Any]) -> Dict[str, Any]:
-        """Process the context and return modified context.
-
-        Args:
-            context: The current conversation context
-
-        Returns:
-            Modified context dictionary
-        """
-        pass
-
-    def enable(self) -> None:
-        """Enable the plugin."""
-        self.enabled = True
-
-    def disable(self) -> None:
-        """Disable the plugin."""
-        self.enabled = False
-
-    @property
-    def is_enabled(self) -> bool:
-        return self.enabled
diff --git a/simplemind/plugins/basic_memory.py b/simplemind/plugins/basic_memory.py
deleted file mode 100644
index d3365e4..0000000
--- a/simplemind/plugins/basic_memory.py
+++ /dev/null
@@ -1,10 +0,0 @@
-from .base import BasePlugin
-
-
-class BasicMemoryPlugin(BasePlugin):
-    def __init__(self):
-        self.memory = []
-
-    def execute(self, context, message):
-        self.memory.append(message)
-        return self.memory
diff --git a/simplemind/plugins/kv.py b/simplemind/plugins/kv.py
deleted file mode 100644
index 0e0ebbe..0000000
--- a/simplemind/plugins/kv.py
+++ /dev/null
@@ -1,18 +0,0 @@
-from .base import BasePlugin
-
-
-class KVPlugin(BasePlugin):
-    def __init__(self):
-        self.store = {}
-
-    def process(self, key: str, value=None):
-        """
-        Get or set a value in the key-value store.
-        If value is None, returns the value for the key.
-        If value is provided, sets the value for the key and returns it.
-        """
-        if value is None:
-            return self.store.get(key)
-
-        self.store[key] = value
-        return value
diff --git a/simplemind/providers/__init__.py b/simplemind/providers/__init__.py
index 9a4b90d..f6725d5 100644
--- a/simplemind/providers/__init__.py
+++ b/simplemind/providers/__init__.py
@@ -1,18 +1,3 @@
-from ..core.config import settings
+from .openai import OpenAI
 
-__all__ = []
-
-if settings.anthropic_api_key:
-    from .anthropic import Anthropic
-
-    __all__.append("Anthropic")
-
-if settings.openai_api_key:
-    from .openai import OpenAI
-
-    __all__.append("OpenAI")
-
-if settings.ollama_host_url:
-    from .ollama import Ollama
-
-    __all__.append("Ollama")
+providers = [OpenAI]
diff --git a/simplemind/providers/anthropic.py b/simplemind/providers/anthropic.py
deleted file mode 100644
index e17047a..0000000
--- a/simplemind/providers/anthropic.py
+++ /dev/null
@@ -1,80 +0,0 @@
-import os
-from typing import List, Optional
-
-import instructor
-from anthropic import Anthropic as BaseAnthropic
-
-from .base import BaseClientProvider
-from ..core.models import AIResponse, Conversation
-from ..core.logger import logger
-
-
-DEFAULT_MODEL = "claude-3-5-sonnet-20241022"
-DEFAULT_MAX_TOKENS = 4096
-
-
-class Anthropic(BaseClientProvider):
-    def __init__(self, model: str = DEFAULT_MODEL, api_key: Optional[str] = None):
-        super().__init__(model=model, api_key=api_key)
-        self.login()
-
-    def login(self):
-        if not self._api_key:
-            self._api_key = os.getenv("ANTHROPIC_API_KEY")
-        if not self._api_key:
-            raise ValueError("Anthropic API key not provided.")
-        logger.debug(f"API key length: {len(self._api_key) if self._api_key else 0}")
-
-        base_client = BaseAnthropic(api_key=self._api_key)
-        self.client = instructor.from_anthropic(base_client)
-        if not self.test_connection():
-            raise ConnectionError("Failed to connect to Anthropic API.")
-        logger.info("Logged in to Anthropic successfully.")
-
-    @property
-    def available_models(self) -> List[str]:
-        try:
-            return [
-                "claude-3-opus-20240229",
-                "claude-3-5-sonnet-20240620",
-                "claude-3-haiku-20240307",
-            ]
-        except Exception as e:
-            logger.error(f"Error fetching models: {e}")
-            return []
-
-    def test_connection(self) -> bool:
-        models = self.available_models
-        if models:
-            logger.info(f"Available models: {models}")
-            return True
-        logger.warning("No available models found.")
-        return False
-
-    def generate_response(self, conversation: Conversation) -> AIResponse:
-        messages = [
-            {"role": msg.role, "content": msg.content} for msg in conversation.messages
-        ]
-        params = {
-            "messages": messages,
-            "model": self.model,
-            "max_tokens": DEFAULT_MAX_TOKENS,
-        }
-        if conversation.context:
-            params["context"] = (
-                vars(conversation.context)
-                if hasattr(conversation.context, "__dict__")
-                else dict(conversation.context)
-            )
-
-        try:
-            completion = self.client.completions.create(response_model=str, **params)
-            response_text = completion.completion
-            metadata = {"model": completion.model, "usage": completion.usage}
-            logger.info("Generated response from Anthropic.")
-            return AIResponse(
-                text=response_text, response=completion, metadata=metadata
-            )
-        except Exception as e:
-            logger.error(f"Error generating response: {e}")
-            raise e
diff --git a/simplemind/providers/base.py b/simplemind/providers/base.py
deleted file mode 100644
index fb72740..0000000
--- a/simplemind/providers/base.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# import logging
-
-from pydantic import BaseModel
-from typing import Any, Dict, List, Optional
-from ..core.models import AIResponse, Conversation, Message
-import uuid
-
-
-DEFAULT_MODEL = "gpt-4o"
-
-
-class BaseClientProvider:
-
-    def __init__(self, *, model: str = DEFAULT_MODEL, api_key: Optional[str] = None):
-        # self.logger = logging.getLogger(self.__class__.__name__)
-        self.client = None
-        self.model = model
-        self._api_key = api_key
-        self.conversations: Dict[str, Conversation] = {}
-
-    def login(self):
-        """Initializes the AI provider client."""
-
-        msg = "This method must be implemented by the AI provider client."
-        raise NotImplementedError(msg)
-
-    def test_connection(self) -> bool:
-        """Tests the connection to the AI provider client."""
-
-        msg = "This method must be implemented by the AI provider client."
-        raise NotImplementedError(msg)
-
-    def health_check(self):
-        """Checks the health of the AI provider client."""
-
-        msg = "This method must be implemented by the AI provider client."
-        raise NotImplementedError(msg)
-
-    @property
-    def available_models(self) -> List[str]:
-        """Returns the available models from the AI provider client."""
-
-        msg = "This method must be implemented by the AI provider client."
-        raise NotImplementedError(msg)
-
-    def message(self, message: str, **kwargs) -> AIResponse:
-        """Generates a response from the AI provider client."""
-
-        msg = "This method must be implemented by the AI provider client."
-        raise NotImplementedError(msg)
-
-    # Uncomment and implement additional methods as needed
-    # def features(self):
-    #     """Returns the features of the AI provider client."""
-    #     msg = "This method must be implemented by the AI provider client."
-    #     raise NotImplementedError(msg)
-
-    # def structured_response(self, model, message, **kwargs):
-    #     pass
-
-    # def structured_conversation(self, model, message, **kwargs):
-    #     pass
-
-    # def single_message(self, model, message, **kwargs):
-    #     return self.generate_response(message)
-
-    # def start_conversation(self, model, message, **kwargs):
-    #     pass
-
-    def create_conversation(
-        self, initial_message: str, context: Optional[Dict[str, Any]] = None
-    ) -> Conversation:
-        conv_id = str(uuid.uuid4())
-        conversation = Conversation(
-            id=conv_id,
-            messages=[Message(role="user", content=initial_message)],
-            context=context or {},
-        )
-        self.conversations[conv_id] = conversation
-        return conversation
-
-    def send_message(
-        self,
-        conversation_id: str,
-        message: str,
-        context_update: Optional[Dict[str, Any]] = None,
-    ) -> AIResponse:
-        if conversation_id not in self.conversations:
-            raise ValueError("Conversation ID does not exist.")
-
-        conversation = self.conversations[conversation_id]
-        conversation.messages.append(Message(role="user", content=message))
-
-        if context_update:
-            conversation.context.update(context_update)
-
-        response = self.generate_response(conversation)
-        conversation.messages.append(
-            Message(role="assistant", content=response.choices[0].message.content)
-        )
-        return response
-
-    def generate_response(self, conversation: Conversation) -> AIResponse:
-        """Generates a response based on the conversation."""
-        raise NotImplementedError(
-            "This method must be implemented by the AI provider client."
-        )
-
-    def get_conversation(self, conversation_id: str) -> Conversation:
-        if conversation_id not in self.conversations:
-            raise ValueError("Conversation ID does not exist.")
-        return self.conversations[conversation_id]
diff --git a/simplemind/providers/ollama.py b/simplemind/providers/ollama.py
deleted file mode 100644
index 78ee08f..0000000
--- a/simplemind/providers/ollama.py
+++ /dev/null
@@ -1,110 +0,0 @@
-import os
-import uuid
-from typing import List, Optional, Dict, Any
-from ..core.errors import ProviderError
-from ..core.logger import logger
-from .base import BaseClientProvider
-from some_module import BaseOllama  # Replace 'some_module' with the actual module name
-
-TIMEOUT = 60
-
-
-class Ollama(BaseClientProvider):
-
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        self.login()
-        self.conversation = []
-
-    def login(self):
-        """Initialize Ollama client, with Instructor enabled."""
-        if not os.environ.get("OLLAMA_HOST_URL"):
-            raise ValueError("Please set the OLLAMA_HOST_URL environment variable")
-
-        if not os.environ.get("OLLAMA_MODEL"):
-            raise ValueError("Please set the OLLAMA_MODEL environment variable")
-        else:
-            self.model = os.environ.get("OLLAMA_MODEL")
-
-        self.client = BaseOllama(
-            timeout=TIMEOUT, host=os.environ.get("OLLAMA_HOST_URL")
-        )
-        assert self.test_connection()
-
-    @property
-    def available_models(self):
-        """Returns the available models from the Ollama client."""
-
-        def gen():
-            for model in self.client.list().get("models"):
-                yield model
-
-        return [g for g in gen()]
-
-    def test_connection(self):
-        """Test the connection to Ollama. Returns True if successful."""
-
-        return bool(len(self.available_models))
-
-    def generate_text(self, prompt, *, response_model=False, **kwargs):
-        use_instructor = bool(response_model)
-
-        client = self.instructor_client if use_instructor else self.client
-
-        # Parameters for the Ollama client.
-        params = {
-            "prompt": prompt,
-            "model": self.model,
-        }
-        params.update(kwargs)
-
-        if use_instructor:
-            params["response_model"] = response_model
-
-        # Make the request to Ollama.
-        completion = client.generate(**params)
-        if use_instructor:
-            return completion.model_dump()
-
-        else:
-            return AIResponse(
-                response=completion,
-                text=completion.get("response"),
-            )
-
-    def message(
-        self, message=None, message_history=None, response_model=False, **kwargs
-    ):
-        """Generates a response from the Ollama client."""
-        use_instructor = bool(response_model)
-
-        client = self.instructor_client if use_instructor else self.client
-
-        # Parameters for the Ollama client.
-        all_messages = []
-        if message_history:
-            all_messages.extend(message_history)
-        if message:
-            all_messages.append({"role": "user", "content": message})
-        params = {
-            "messages": all_messages,
-            "model": self.model,
-        }
-        params.update(kwargs)
-
-        if use_instructor:
-            params["response_model"] = response_model
-
-        # Make the request to Ollama.
-        completion = client.chat(**params)
-        if use_instructor:
-            return completion.model_dump()
-
-        else:
-            return AIResponse(
-                response=completion,
-                text=completion.get("message").get("content"),
-            )
-
-    def start_conversation(self):
-        return Conversation(self)
diff --git a/simplemind/providers/openai.py b/simplemind/providers/openai.py
index 1b83b41..06c8f09 100644
--- a/simplemind/providers/openai.py
+++ b/simplemind/providers/openai.py
@@ -1,69 +1,57 @@
-from typing import List, Optional
-import openai
-from ..core.errors import AuthenticationError, ProviderError
-from ..core.config import settings
-from ..core.logger import logger
-from .base import BaseClientProvider
+import openai as oa
+import instructor
 
-DEFAULT_MODEL = "gpt-4o"
+# from ..models import Conversation, Message
+from ..settings import settings
+
+PROVIDER_NAME = "openai"
+DEFAULT_MODEL = "gpt-4o-mini"
 
 
-class OpenAI(BaseClientProvider):
-    def __init__(self, model: str = DEFAULT_MODEL, api_key: Optional[str] = None):
-        super().__init__(model=model, api_key=api_key)
-        self.login()
+class OpenAI:
+    __name__ = PROVIDER_NAME
+    DEFAULT_MODEL = DEFAULT_MODEL
 
-    def login(self) -> None:
-        if not self._api_key:
-            self._api_key = settings.openai_api_key
-        if not self._api_key:
-            raise AuthenticationError("OpenAI API key not provided")
-
-        try:
-            openai.api_key = self._api_key
-            if not self.test_connection():
-                raise ProviderError("Failed to connect to OpenAI API")
-            logger.info("Successfully connected to OpenAI")
-        except Exception as e:
-            raise ProviderError(f"OpenAI initialization failed: {str(e)}")
+    def __init__(self, api_key: str = None):
+        self.api_key = api_key or settings.OPENAI_API_KEY
 
     @property
-    def available_models(self) -> List[str]:
-        try:
-            models = openai.models.list()
-            return [model.id for model in models["data"]]
-        except Exception as e:
-            logger.error(f"Error fetching models: {e}")
-            return []
+    def client(self):
+        """The raw OpenAI client."""
+        return oa.OpenAI(api_key=self.api_key)
 
-    def test_connection(self):
-        """Test the connection to OpenAI API."""
-        try:
-            openai.models.list()
-            return True
-        except Exception as e:
-            logger.error(f"Connection test failed: {e}")
-            return False
+    @property
+    def structured_client(self):
+        """A client patched with Instructor."""
+        return instructor.patch(oa.OpenAI(api_key=self.api_key))
 
-    def _handle_api_error(self, e: Exception) -> None:
-        """Handle API errors."""
-        logger.error(f"OpenAI API error: {e}")
-        raise ProviderError(f"OpenAI API error: {e}")
+    def send_conversation(self, conversation: "Conversation"):
+        """Send a conversation to the OpenAI API."""
+        from ..models import Message
 
-    def add_message(self, conversation_id, message, *args, **kwargs) -> str:
-        """Generate a response using the OpenAI API."""
-        try:
-            # Create a client instance using the API key
-            client = openai.OpenAI(api_key=self._api_key)
+        messages = [
+            {"role": msg.role, "content": msg.text} for msg in conversation.messages
+        ]
 
-            # Create the message for the conversation
-            messages = [{"role": "user", "content": message}]
+        response = self.client.chat.completions.create(
+            model=conversation.llm_model or DEFAULT_MODEL, messages=messages
+        )
 
-            # Use the new API syntax
-            response = client.chat.completions.create(
-                model=self.model, messages=messages, *args, **kwargs
-            )
+        # Get the response content from the OpenAI response
+        assistant_message = response.choices[0].message
 
-            return response.choices[0].message.content
-        except Exception as e:
-            self._handle_api_error(e)
+        # Create and return a properly formatted Message instance
+        return Message(
+            role="assistant",
+            text=assistant_message.content,
+            raw=response,
+            llm_model=conversation.llm_model or DEFAULT_MODEL,
+            llm_provider=PROVIDER_NAME,
+        )
+
+    def structured_response(self, model, response_model, **kwargs):
+        client = instructor.patch(oa.OpenAI(api_key=self.api_key))
+        response = client.chat.completions.create(
+            model=model, response_model=response_model, **kwargs
+        )
+        return response
diff --git a/simplemind/settings.py b/simplemind/settings.py
new file mode 100644
index 0000000..0189beb
--- /dev/null
+++ b/simplemind/settings.py
@@ -0,0 +1,10 @@
+from pydantic import Field
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    OPENAI_API_KEY: str = Field(..., env="OPENAI_API_KEY")
+    ANTHROPIC_API_KEY: str = Field(..., env="ANTHROPIC_API_KEY")
+
+
+settings = Settings()
diff --git a/simplemind/tests/test_openai.py b/simplemind/tests/test_openai.py
deleted file mode 100644
index 7721493..0000000
--- a/simplemind/tests/test_openai.py
+++ /dev/null
@@ -1,24 +0,0 @@
-import unittest
-from unittest.mock import patch, MagicMock
-from simplemind.providers.openai import OpenAI
-from simplemind.core.errors import AuthenticationError, ProviderError
-
-
-class TestOpenAIProvider(unittest.TestCase):
-    def setUp(self):
-        self.api_key = "test_key"
-
-    @patch("simplemind.providers.openai.openai")
-    def test_initialization(self, mock_openai):
-        mock_openai.Model.list.return_value = {"data": ["gpt-4"]}
-        provider = OpenAI(api_key=self.api_key)
-        self.assertIsNotNone(provider.client)
-        mock_openai.Model.list.assert_called_once()
-
-    def test_missing_api_key(self):
-        with self.assertRaises(AuthenticationError):
-            OpenAI(api_key=None)
-
-
-if __name__ == "__main__":
-    unittest.main()
diff --git a/simplemind/utils.py b/simplemind/utils.py
new file mode 100644
index 0000000..8304881
--- /dev/null
+++ b/simplemind/utils.py
@@ -0,0 +1,10 @@
+from .providers import providers
+
+
+def find_provider(provider_name: str):
+    """Find a provider by name."""
+    for provider_class in providers:
+        if provider_class.__name__.lower() == provider_name.lower():
+            # Instantiate the provider
+            return provider_class()
+    raise ValueError(f"Provider {provider_name} not found")
diff --git a/simplemind/utils/__init__.py b/simplemind/utils/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/simplemind/utils/faiss_store.py b/simplemind/utils/faiss_store.py
deleted file mode 100644
index 9bbc559..0000000
--- a/simplemind/utils/faiss_store.py
+++ /dev/null
@@ -1,19 +0,0 @@
-import faiss
-import numpy as np
-from typing import List
-
-
-class FAISSStore:
-    def __init__(self, dimension: int):
-        self.dimension = dimension
-        self.index = faiss.IndexFlatL2(dimension)
-        self.ids = []
-
-    def add_embeddings(self, embeddings: np.ndarray, ids: List[str]):
-        self.index.add(embeddings)
-        self.ids.extend(ids)
-
-    def search(self, query_embedding: np.ndarray, top_k: int = 5):
-        distances, indices = self.index.search(query_embedding, top_k)
-        results = [(self.ids[idx], distances[i]) for i, idx in enumerate(indices[0])]
-        return results
diff --git a/t.py b/t.py
index 2863b50..b0ecfa4 100644
--- a/t.py
+++ b/t.py
@@ -1,9 +1,7 @@
-from simplemind import SimpleMind
+import simplemind as sm
 
-sm = SimpleMind()
-
-# The provider will automatically use OPENAI_API_KEY from environment
 conversation = sm.create_conversation()
-r = sm.add_message(conversation.id, "Who is Kenneth Reitz?")
+conversation.add_message(role="user", text="Hello, how are you?")
+r = conversation.send(llm_model="gpt-4o-mini", llm_provider="openai")
+
 print(r)
-#
diff --git a/tests/test_openai.py b/tests/test_openai.py
deleted file mode 100644
index fd2d54c..0000000
--- a/tests/test_openai.py
+++ /dev/null
@@ -1,22 +0,0 @@
-import unittest
-from unittest.mock import patch, MagicMock
-from simplemind.providers.openai import OpenAI
-from simplemind.core.errors import AuthenticationError, ProviderError
-
-
-class TestOpenAIProvider(unittest.TestCase):
-    def setUp(self):
-        self.api_key = "test_key"
-
-    @patch("simplemind.integrations.openai.BaseOpenAI")
-    def test_initialization(self, mock_openai):
-        provider = OpenAI(api_key=self.api_key)
-        self.assertIsNotNone(provider.client)
-
-    def test_missing_api_key(self):
-        with self.assertRaises(AuthenticationError):
-            OpenAI(api_key=None)
-
-
-if __name__ == "__main__":
-    unittest.main()