update llama model name

src/config.rs

@@ -27,7 +27,7 @@ impl ToString for Model {
             
             Self::Claude => String::from("claude-3-haiku-20240307"),
             Self::GPT3 => String::from("gpt-3.5-turbo-0125"),
-            Self::Llama => String::from("meta-llama/Llama-3-70b-chat-hf"),
+            Self::Llama => String::from("meta-llama/Meta-Llama-3.1-70B-Instruct-Turbo"),
             Self::Mixtral => String::from("mistralai/Mixtral-8x7B-Instruct-v0.1"),
             Self::GPT4OMini => String::from("gpt-4o-mini")
         }