diff --git a/torchtune/models/llama3_1/_model_builders.py b/torchtune/models/llama3_1/_model_builders.py
index b6439b2eb2..d3ddd3cedd 100644
--- a/torchtune/models/llama3_1/_model_builders.py
+++ b/torchtune/models/llama3_1/_model_builders.py
@@ -85,6 +85,7 @@ def lora_llama3_1_8b(
     lora_attn_modules: List[LORA_ATTN_MODULES],
     apply_lora_to_mlp: bool = False,
     apply_lora_to_output: bool = False,
+    max_seq_len: int = 131072,
     lora_rank: int = 8,
     lora_alpha: float = 16,
     lora_dropout: float = 0.0,
@@ -125,7 +126,7 @@ def lora_llama3_1_8b(
         num_heads=32,
         num_kv_heads=8,
         embed_dim=4096,
-        max_seq_len=131072,
+        max_seq_len=max_seq_len,
         intermediate_dim=14336,
         attn_dropout=0.0,
         norm_eps=1e-5,
@@ -142,6 +143,7 @@ def lora_llama3_1_70b(
     lora_attn_modules: List[LORA_ATTN_MODULES],
     apply_lora_to_mlp: bool = False,
     apply_lora_to_output: bool = False,
+    max_seq_len: int = 131072,
     lora_rank: int = 8,
     lora_alpha: float = 16,
     lora_dropout: float = 0.0,
@@ -182,7 +184,7 @@ def lora_llama3_1_70b(
         num_heads=64,
         num_kv_heads=8,
         embed_dim=8192,
-        max_seq_len=131072,
+        max_seq_len=max_seq_len,
         intermediate_dim=28672,
         attn_dropout=0.0,
         norm_eps=1e-5,
@@ -199,6 +201,7 @@ def lora_llama3_1_405b(
     lora_attn_modules: List[LORA_ATTN_MODULES],
     apply_lora_to_mlp: bool = False,
     apply_lora_to_output: bool = False,
+    max_seq_len: int = 8192,
     lora_rank: int = 8,
     lora_alpha: float = 16,
     lora_dropout: float = 0.0,
@@ -236,7 +239,7 @@ def lora_llama3_1_405b(
         num_heads=128,
         num_kv_heads=8,
         embed_dim=16384,
-        max_seq_len=8192,
+        max_seq_len=max_seq_len,
         intermediate_dim=53248,
         attn_dropout=0.0,
         norm_eps=1e-5,