[hotfix] API: messages were created twice (#2174)

lm_eval/models/api_models.py

@@ -107,7 +107,7 @@ class TemplateAPI(TemplateLM):
         self.max_length = max_length
         if int(num_concurrent) <= 1:
             eval_logger.info(
-                "Concurrent requests are disabled. To enable concurrent requests, set `num_concurrent > 1`."
+                "Concurrent requests are disabled. To enable concurrent requests, set `num_concurrent` > 1."
             )
         self._concurrent = int(num_concurrent)
         self.tokenizer_backend = tokenizer_backend
@@ -499,7 +499,7 @@ class TemplateAPI(TemplateLM):
                     stop=stop_after_attempt(self.max_retries),
                     wait=wait_exponential(multiplier=0.5, min=1, max=10),
                     reraise=True,
-                )(self.model_call)(messages=self.create_message(inputs), generate=False)
+                )(self.model_call)(messages=inputs, generate=False)
                 if isinstance(outputs, dict):
                     outputs = [outputs]
                 for answer_, cache_key in zip(