A is incorrect: Executing code via Code Interpreter can sometimes be slower than a direct LLM response, especially for simple tasks, due to the overhead of code generation and execution.

B is incorrect: Depending on the complexity and duration of code execution, using Code Interpreter can sometimes incur higher costs than a standard LLM prompt.

C is incorrect: Code Interpreter still uses tokens for its inputs, outputs, and the generated code itself.

D is correct: Code Interpreter's main benefit is its ability to run actual Python code, which is crucial for achieving mathematical accuracy and handling large, complex datasets that LLMs might otherwise struggle with.