diff --git a/libs/partners/mistralai/langchain_mistralai/data/_profiles.py b/libs/partners/mistralai/langchain_mistralai/data/_profiles.py
index e5c275fa136..3edf772d806 100644
--- a/libs/partners/mistralai/langchain_mistralai/data/_profiles.py
+++ b/libs/partners/mistralai/langchain_mistralai/data/_profiles.py
@@ -406,9 +406,9 @@ _PROFILES: dict[str, dict[str, Any]] = {
     },
     "mistral-medium-latest": {
         "name": "Mistral Medium (latest)",
-        "release_date": "2026-04-29",
-        "last_updated": "2026-04-29",
-        "open_weights": True,
+        "release_date": "2025-08-12",
+        "last_updated": "2025-08-12",
+        "open_weights": False,
         "max_input_tokens": 262144,
         "max_output_tokens": 262144,
         "text_inputs": True,
@@ -419,9 +419,8 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "image_outputs": False,
         "audio_outputs": False,
         "video_outputs": False,
-        "reasoning_output": True,
+        "reasoning_output": False,
         "tool_calling": True,
-        "structured_output": True,
         "attachment": True,
         "temperature": True,
     },
diff --git a/libs/partners/openrouter/langchain_openrouter/data/_profiles.py b/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
index be8356ac693..ccdf26426a9 100644
--- a/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
+++ b/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
@@ -2629,7 +2629,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "name": "MiniMax-M3",
         "release_date": "2026-06-01",
         "last_updated": "2026-06-01",
-        "open_weights": True,
+        "open_weights": False,
         "max_input_tokens": 524288,
         "max_output_tokens": 512000,
         "text_inputs": True,
@@ -3498,6 +3498,69 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": False,
         "temperature": True,
     },
+    "nvidia/nemotron-3-ultra-550b-a55b": {
+        "name": "Nemotron 3 Ultra",
+        "release_date": "2026-06-04",
+        "last_updated": "2026-06-04",
+        "open_weights": True,
+        "max_input_tokens": 262144,
+        "max_output_tokens": 16384,
+        "text_inputs": True,
+        "image_inputs": False,
+        "audio_inputs": False,
+        "video_inputs": False,
+        "text_outputs": True,
+        "image_outputs": False,
+        "audio_outputs": False,
+        "video_outputs": False,
+        "reasoning_output": True,
+        "tool_calling": True,
+        "structured_output": True,
+        "attachment": False,
+        "temperature": True,
+    },
+    "nvidia/nemotron-3-ultra-550b-a55b:free": {
+        "name": "Nemotron 3 Ultra (free)",
+        "release_date": "2026-06-04",
+        "last_updated": "2026-06-04",
+        "open_weights": True,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 65536,
+        "text_inputs": True,
+        "image_inputs": False,
+        "audio_inputs": False,
+        "video_inputs": False,
+        "text_outputs": True,
+        "image_outputs": False,
+        "audio_outputs": False,
+        "video_outputs": False,
+        "reasoning_output": True,
+        "tool_calling": True,
+        "structured_output": False,
+        "attachment": False,
+        "temperature": True,
+    },
+    "nvidia/nemotron-3.5-content-safety:free": {
+        "name": "Nemotron 3.5 Content Safety (free)",
+        "release_date": "2026-06-04",
+        "last_updated": "2026-06-04",
+        "open_weights": True,
+        "max_input_tokens": 128000,
+        "max_output_tokens": 8192,
+        "text_inputs": True,
+        "image_inputs": True,
+        "audio_inputs": False,
+        "video_inputs": False,
+        "text_outputs": True,
+        "image_outputs": False,
+        "audio_outputs": False,
+        "video_outputs": False,
+        "reasoning_output": True,
+        "tool_calling": False,
+        "structured_output": False,
+        "attachment": True,
+        "temperature": True,
+    },
     "nvidia/nemotron-nano-12b-v2-vl:free": {
         "name": "Nemotron Nano 12B 2 VL (free)",
         "release_date": "2025-10-28",
@@ -7096,7 +7159,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "name": "GLM-5.1",
         "release_date": "2026-03-27",
         "last_updated": "2026-03-27",
-        "open_weights": False,
+        "open_weights": True,
         "max_input_tokens": 202752,
         "max_output_tokens": 131072,
         "text_inputs": True,