diff --git a/projects/rccl/src/graph/rome_models.cc b/projects/rccl/src/graph/rome_models.cc
index c2e5e33976..64ab60d22d 100644
--- a/projects/rccl/src/graph/rome_models.cc
+++ b/projects/rccl/src/graph/rome_models.cc
@@ -419,7 +419,7 @@ static struct rcclRomeModel rome_model_63 = {
   .gdrLevel = { PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, },
   .pattern = "21212121",
   .ringBase = "N0 0 1 5 4 6 7 3 2 N1|N1 2 3 7 6 4 5 1 0 N0|N3 7 6 0 1 3 2 4 5 N2|N2 5 4 2 3 1 0 6 7 N3|N0 0 1 5 4 6 7 3 2 N1|N1 2 3 7 6 4 5 1 0 N0|N3 7 6 0 1 3 2 4 5 N2|N2 5 4 2 3 1 0 6 7 N3",
-  .options = "",
+  .options = "tuning=3",
 };
 
 static struct rcclRomeModel rome_model_65 = {
diff --git a/projects/rccl/src/graph/tuning.cc b/projects/rccl/src/graph/tuning.cc
index 95edc76ce6..63d0443a39 100644
--- a/projects/rccl/src/graph/tuning.cc
+++ b/projects/rccl/src/graph/tuning.cc
@@ -158,10 +158,41 @@ static struct tuningModel tuning_model_2 {
   },
 };
 
+static struct tuningModel tuning_model_3 {
+  .hwLat = {
+    /* NVLINK */
+    { /* Tree (LL/LL128/Simple)*/ { 1.5, 1.5, 4.5 }, /* Ring (LL/LL128/Simple)*/ { 1.5, 1.5, 4.5 }, /* CollNet (LL/LL128/Simple)*/ { 1.5, 1.5, 4.5 } },
+    /* PCI */
+    { /* Tree (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 }, /* Ring (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 }, /* CollNet (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 } },
+    /* NET */
+    { /* Tree (LL/LL128/Simple)*/ { 17.4, 17.4, 40.3 }, /* Ring (LL/LL128/Simple)*/ { 4.1, 4.1, 40.6 }, /* CollNet (LL/LL128/Simple)*/ { 17.4, 17.4, 40.3 } },
+  },
+
+  .bwRatio = {
+    /* 2 nodes */
+    { /* Tree (LL/LL128/Simple)*/ { 0.08, 1.00, 0.95 }, /* Ring (LL/LL128/Simple)*/ { 0.08, 1.00, 1.00 }, /* CollNet (LL/LL128/Simple)*/ { 1.00, 1.00, 1.00 } },
+    /* more than 2 nodes */
+    { /* Tree (LL/LL128/Simple)*/ { 0.08, 1.00, 0.41 }, /* Ring (LL/LL128/Simple)*/ { 0.08, 1.00, 1.00 }, /* CollNet (LL/LL128/Simple)*/ { 1.00, 1.00, 1.00 } },
+  },
+
+  .treeCorrectionFactor = {
+    { 0.6, 1.0, 1.0, 1.0, 0.1, 0.2, 0.1, 0.2, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 0.9, 0.9, 0.8, 0.6, 0.4, 0.5, 0.4, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.6, 1.0, 1.0, 1.0, 0.1, 0.2, 0.1, 0.2, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 0.9, 0.9, 0.8, 0.6, 0.4, 0.5, 0.4, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 1.0, 0.1, 0.1, 0.1, 1.0, 1.0, 1.0, 1.0, 0.7, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.5, 0.5, 0.6, 0.6, 0.6, 0.6, },
+  },
+
+  .ringCorrectionFactor = {
+    { 0.5, 0.2, 0.1, 0.1, 0.3, 0.3, 0.1, 0.3, 0.7, 0.8, 0.5, 0.4, 0.2, 0.1, 0.1, 0.1, 0.3, 0.5, 0.4, 0.4, 0.3, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.5, 0.2, 0.1, 0.1, 0.3, 0.3, 0.1, 0.3, 0.7, 0.8, 0.5, 0.4, 0.2, 0.1, 0.1, 0.1, 0.3, 0.5, 0.4, 0.4, 0.3, 0.2, 0.1, 0.1, 0.1, 0.1, 0.1, },
+    { 0.2, 0.3, 0.1, 0.1, 0.1, 0.1, 0.1, 0.2, 1.0, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.2, 0.2, 0.6, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, },
+  },
+};
+
 static struct tuningModel rcclTuningModel[] = {
   tuning_model_0,
   tuning_model_1,
   tuning_model_2,
+  tuning_model_3,
 };
 
 // LL128 max BW per channel