diff --git a/sae_lens/sae_training_runner.py b/sae_lens/sae_training_runner.py
index fff8ace2..5856f7b1 100644
--- a/sae_lens/sae_training_runner.py
+++ b/sae_lens/sae_training_runner.py
@@ -207,8 +207,12 @@ def save_checkpoint(
         save_file(log_feature_sparsities, log_feature_sparsity_path)
 
         if trainer.cfg.log_to_wandb and os.path.exists(log_feature_sparsity_path):
+            # Avoid wandb saving errors such as:
+            #   ValueError: Artifact name may only contain alphanumeric characters, dashes, underscores, and dots. Invalid name: sae_google/gemma-2b_etc
+            sae_name = self.sae.get_name().replace("/", "__")
+
             model_artifact = wandb.Artifact(
-                f"{self.sae.get_name()}",
+                sae_name,
                 type="model",
                 metadata=dict(trainer.cfg.__dict__),
             )
@@ -219,7 +223,7 @@ def save_checkpoint(
             wandb.log_artifact(model_artifact, aliases=wandb_aliases)
 
             sparsity_artifact = wandb.Artifact(
-                f"{self.sae.get_name()}_log_feature_sparsity",
+                f"{sae_name}_log_feature_sparsity",
                 type="log_feature_sparsity",
                 metadata=dict(trainer.cfg.__dict__),
             )