diff --git a/providers/crossmodel/models/x-ai/grok-4.3.toml b/providers/crossmodel/models/x-ai/grok-4.3.toml
new file mode 100644
index 000000000..3a82998f3
--- /dev/null
+++ b/providers/crossmodel/models/x-ai/grok-4.3.toml
@@ -0,0 +1,24 @@
+base_model = "xai/grok-4.3"
+
+[[reasoning_options]]
+type = "effort"
+values = ["none", "low", "medium", "high"]
+
+[cost]
+input = 1.25
+output = 2.5
+cache_read = 0.2
+cache_write = 1.25
+
+[[cost.tiers]]
+tier = { type = "context", size = 200_000 }
+input = 2.5
+output = 5
+cache_read = 0.4
+cache_write = 2.5
+
+[limit]
+output = 1_000_000
+
+[modalities]
+input = ["text", "image"]
diff --git a/providers/crossmodel/models/x-ai/grok-4.5.toml b/providers/crossmodel/models/x-ai/grok-4.5.toml
new file mode 100644
index 000000000..34ee6b708
--- /dev/null
+++ b/providers/crossmodel/models/x-ai/grok-4.5.toml
@@ -0,0 +1,18 @@
+base_model = "xai/grok-4.5"
+
+[[reasoning_options]]
+type = "effort"
+values = ["low", "medium", "high"]
+
+[cost]
+input = 2
+output = 6
+cache_read = 0.5
+cache_write = 2
+
+[[cost.tiers]]
+tier = { type = "context", size = 200_000 }
+input = 4
+output = 12
+cache_read = 1
+cache_write = 4
diff --git a/providers/crossmodel/models/x-ai/grok-build-0.1.toml b/providers/crossmodel/models/x-ai/grok-build-0.1.toml
new file mode 100644
index 000000000..420d175ec
--- /dev/null
+++ b/providers/crossmodel/models/x-ai/grok-build-0.1.toml
@@ -0,0 +1,18 @@
+base_model = "xai/grok-build-0.1"
+reasoning_options = []
+
+[cost]
+input = 1
+output = 2
+cache_read = 0.2
+cache_write = 1
+
+[[cost.tiers]]
+tier = { type = "context", size = 200_000 }
+input = 2
+output = 4
+cache_read = 0.4
+cache_write = 2
+
+[modalities]
+input = ["text", "image"]