default to fp32 for now

t5/t5.py

@@ -146,9 +146,6 @@ class RMSNorm(nn.Module):
 
     def __call__(self, x):
         t = x.dtype
-        if t == mx.float16:
-            x = x.astype(mx.float32)
-            x = mx.clip(x, a_min=-1e9, a_max=1e9)
         output = self._norm(x).astype(t)
         return self.weight * output
 
@@ -406,7 +403,7 @@ if __name__ == "__main__":
         help="The model data type.",
         type=str,
         choices=["float16", "bfloat16", "float32"],
-        default="float16",
+        default="float32",
     )
 
     parser.add_argument("--seed", type=int, default=0, help="The PRNG seed")