diff --git a/llm_toolkit/models.py b/llm_toolkit/models.py
index 5a81c28dd0..9d9a57f67b 100644
--- a/llm_toolkit/models.py
+++ b/llm_toolkit/models.py
@@ -47,6 +47,7 @@
 MAX_TOKENS: int = 2000
 NUM_SAMPLES: int = 1
 TEMPERATURE: float = 0.4
+TEMPERATURE_RANGE: list[float] = [0.0, 2.0]
 
 
 class LLM:
@@ -61,6 +62,8 @@ class LLM:
 
   _max_attempts = 5  # Maximum number of attempts to get prediction response
 
+  temperature_range: list[float] = TEMPERATURE_RANGE
+
   def __init__(
       self,
       ai_binary: str,
@@ -116,16 +119,33 @@ def all_llm_subclasses(cls):
     yield cls
     for subcls in cls.__subclasses__():
       yield from subcls.all_llm_subclasses()
-
+  
   @classmethod
-  def all_llm_names(cls):
-    """Returns the current model name and all child model names."""
-    names = []
+  def all_llm_search(cls, attribute: str = None) -> list:
+    """Returns the desired attribute for all models."""
+    out = []
     for subcls in cls.all_llm_subclasses():
       if hasattr(subcls, 'name') and subcls.name != AIBinaryModel.name:
-        names.append(subcls.name)
-    return names
+        if attribute is not None and hasattr(subcls, attribute): 
+          out.append(getattr(subcls, attribute))
+        else:
+          out.append(subcls)
+    return out
 
+  @classmethod
+  def all_llm_names(cls) -> list[str]:
+    """Returns the current model name and all child model names."""
+    return cls.all_llm_search('name')
+  
+  @classmethod
+  def all_llm_temperature_ranges(cls) -> dict[str, list[float, float]]:
+    """Returns the current model and all child temperature ranges."""
+    return {
+      m.name: m.temperature_range
+      for m in cls.all_llm_search()
+      if hasattr(m, 'temperature_range')
+    }
+  
   @abstractmethod
   def estimate_token_num(self, text) -> int:
     """Estimates the number of tokens in |text|."""
@@ -384,6 +404,7 @@ class Claude(LLM):
   _max_output_tokens = 4096
   _vertex_ai_model = ''
   context_window = 200000
+  temperature_range = [0.0, 1.0]
 
   # ================================ Prompt ================================ #
   def estimate_token_num(self, text) -> int:
@@ -548,6 +569,7 @@ class VertexAIModel(GoogleModel):
 
   _vertex_ai_model = ''
   _max_output_tokens = 2048
+  temperature_range = [0.0, 1.0]
 
   def cloud_setup(self):
     """Sets Vertex AI cloud location."""
@@ -603,6 +625,8 @@ def ask_llm(self, prompt: prompts.Prompt) -> str:
 class GeminiModel(VertexAIModel):
   """Gemini models."""
 
+  temperature_range = [0.0, 2.0]
+
   safety_config = [
       generative_models.SafetySetting(
           category=generative_models.HarmCategory.
@@ -660,6 +684,7 @@ class GeminiPro(GeminiModel):
 
   name = 'vertex_ai_gemini-pro'
   _vertex_ai_model = 'gemini-1.0-pro'
+  temperature_range = [0.0, 1.0]
 
 
 class GeminiUltra(GeminiModel):
@@ -670,6 +695,7 @@ class GeminiUltra(GeminiModel):
 
   name = 'vertex_ai_gemini-ultra'
   _vertex_ai_model = 'gemini-ultra'
+  temperature_range = [0.0, 1.0]
 
 
 class GeminiExperimental(GeminiModel):
diff --git a/run_all_experiments.py b/run_all_experiments.py
index 24bb0aff55..acd70ee182 100755
--- a/run_all_experiments.py
+++ b/run_all_experiments.py
@@ -278,7 +278,10 @@ def parse_args() -> argparse.Namespace:
     assert args.num_samples > 0, '--num-samples must take a positive integer.'
 
   if args.temperature:
-    assert 2 >= args.temperature >= 0, '--temperature must be within 0 and 2.'
+    ranges = models.LLM.all_llm_temperature_ranges()
+    assert ranges[args.model][1] >= args.temperature >= ranges[args.model][0], (
+      f'--temperature must be within {ranges[args.model][0]} and '
+      f'{ranges[args.model][1]} for model {args.model}.')
 
   benchmark_yaml = args.benchmark_yaml
   if benchmark_yaml: