diff --git a/sbmltoodejax/modulegeneration.py b/sbmltoodejax/modulegeneration.py
index 2afd37d..fa448b1 100644
--- a/sbmltoodejax/modulegeneration.py
+++ b/sbmltoodejax/modulegeneration.py
@@ -14,7 +14,7 @@ def GenerateModel(modelData, outputFilePath,
                   atol: float=1e-6,
                   rtol: float = 1e-12,
                   mxstep: int = 5000000,
-                  solver_type: str = 'odeint',
+                  solver_type: str = 'diffrax',
                   diffrax_solver: str = 'Tsit5'
                   ):
     """
@@ -591,14 +591,4 @@ def ParseRHS(rawRateLaw, extended_param_names=[], reaction_name=None, yvar="y",
     outputFile.write("\t\treturn ys, ws, ts\n\n")
 
     # ================================================================================================================================
-    outputFile.close()
-
-
-
-
-
-
-
-
-
-
+    outputFile.close()
\ No newline at end of file
diff --git a/sbmltoodejax/utils.py b/sbmltoodejax/utils.py
index 46bfc55..a30fdad 100644
--- a/sbmltoodejax/utils.py
+++ b/sbmltoodejax/utils.py
@@ -6,7 +6,7 @@
 def generate_biomodel(model_idx, model_fp="jax_model.py",
                       vary_constant_reactants=False, vary_boundary_reactants=False,
                       deltaT=0.1, atol=1e-6, rtol=1e-12, mxstep=5000000,
-                      solver_type='odeint', diffrax_solver='Tsit5'):
+                      solver_type='diffrax', diffrax_solver='Tsit5'):
     """Calls the `sbmltoodejax.modulegeneration_3.GenerateModel` for a SBML model hosted on the BioModel website and indexed by the provided `model_idx`.
 
     Args:
@@ -16,7 +16,7 @@ def generate_biomodel(model_idx, model_fp="jax_model.py",
         atol (float, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 1e-6.
         rtol (float, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 1e-12.
         mxstep (int, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 5000000.
-        solver_type (str, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 'odeint'.
+        solver_type (str, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 'diffrax'.
         diffrax_solver (str, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 'Tsit5'.
 
     Returns:
@@ -35,7 +35,7 @@ def generate_biomodel(model_idx, model_fp="jax_model.py",
 def load_biomodel(model_idx, model_fp="jax_model.py",
                   vary_constant_reactants=False, vary_boundary_reactants=False,
                   deltaT=0.1, atol=1e-6, rtol=1e-12, mxstep=5000000,
-                  solver_type='odeint', diffrax_solver='Tsit5'):
+                  solver_type='diffrax', diffrax_solver='Tsit5'):
     """Calls the generate_biomodel function for a SBML model hosted on the BioModel website and indexed by the provided `model_idx`,
     then loads and returns the generated `model` module and `y0`, `w0`, `c` variables.
 
@@ -46,6 +46,8 @@ def load_biomodel(model_idx, model_fp="jax_model.py",
         atol (float, optional): parameter passed to `generate_biomodel`. Default to 1e-6.
         rtol (float, optional): parameter passed to `generate_biomodel`. Default to 1e-12.
         mxstep (int, optional): parameter passed to `generate_biomodel`. Default to 5000000.
+        solver_type (str, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 'diffrax'.
+        diffrax_solver (str, optional): parameter passed to `sbmltoodejax.modulegeneration.GenerateModel`. Default to 'Tsit5'.
 
     Returns:
         tuple containing