diff --git a/libs/partners/mistralai/langchain_mistralai/data/_profiles.py b/libs/partners/mistralai/langchain_mistralai/data/_profiles.py
index 8e08cddeea..d2210649ea 100644
--- a/libs/partners/mistralai/langchain_mistralai/data/_profiles.py
+++ b/libs/partners/mistralai/langchain_mistralai/data/_profiles.py
@@ -708,4 +708,25 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": False,
         "temperature": True,
     },
+    "zai-glm-5-3": {
+        "name": "GLM-5.3",
+        "release_date": "2026-08-14",
+        "last_updated": "2026-08-14",
+        "open_weights": True,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 131072,
+        "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,
+    },
 }
diff --git a/libs/partners/openrouter/langchain_openrouter/data/_profiles.py b/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
index 21fe5eeaaa..d004da318b 100644
--- a/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
+++ b/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
@@ -917,7 +917,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "last_updated": "2026-02-28",
         "open_weights": True,
         "max_input_tokens": 163840,
-        "max_output_tokens": 16000,
+        "max_output_tokens": 16384,
         "text_inputs": True,
         "image_inputs": False,
         "audio_inputs": False,
@@ -1153,13 +1153,35 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "temperature": True,
         "tool_call_streaming": True,
     },
+    "deepseek/deepseek-v4-flash-0731:free": {
+        "name": "DeepSeek V4 Flash 0731 (free)",
+        "release_date": "2026-07-31",
+        "last_updated": "2026-07-31",
+        "open_weights": True,
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 393216,
+        "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,
+        "tool_call_streaming": True,
+    },
     "deepseek/deepseek-v4-flash-vision-exp": {
         "name": "DeepSeek V4 Flash Vision Exp",
         "release_date": "2026-08-21",
         "last_updated": "2026-08-21",
         "open_weights": False,
         "max_input_tokens": 1048576,
-        "max_output_tokens": 943718,
+        "max_output_tokens": 262144,
         "text_inputs": True,
         "image_inputs": True,
         "audio_inputs": False,
@@ -3024,29 +3046,6 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "temperature": True,
         "tool_call_streaming": True,
     },
-    "mistralai/mistral-large-2512": {
-        "name": "Mistral Large 3",
-        "release_date": "2025-12-02",
-        "last_updated": "2025-12-02",
-        "open_weights": True,
-        "max_input_tokens": 262144,
-        "max_output_tokens": 209715,
-        "text_inputs": True,
-        "image_inputs": True,
-        "audio_inputs": False,
-        "pdf_inputs": True,
-        "video_inputs": False,
-        "text_outputs": True,
-        "image_outputs": False,
-        "audio_outputs": False,
-        "video_outputs": False,
-        "reasoning_output": False,
-        "tool_calling": True,
-        "structured_output": True,
-        "attachment": True,
-        "temperature": True,
-        "tool_call_streaming": True,
-    },
     "mistralai/mistral-medium-3": {
         "name": "Mistral Medium 3",
         "release_date": "2025-05-07",
@@ -4921,7 +4920,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "last_updated": "2025-08-05",
         "open_weights": True,
         "max_input_tokens": 131072,
-        "max_output_tokens": 117964,
+        "max_output_tokens": 65536,
         "text_inputs": True,
         "image_inputs": False,
         "audio_inputs": False,
@@ -6574,6 +6573,28 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "temperature": True,
         "tool_call_streaming": True,
     },
+    "qwen/qwen3.8-27b:free": {
+        "name": "Qwen3.8 27B (free)",
+        "release_date": "2026-08-14",
+        "last_updated": "2026-08-14",
+        "open_weights": True,
+        "max_input_tokens": 262144,
+        "max_output_tokens": 235929,
+        "text_inputs": True,
+        "image_inputs": True,
+        "audio_inputs": False,
+        "video_inputs": True,
+        "text_outputs": True,
+        "image_outputs": False,
+        "audio_outputs": False,
+        "video_outputs": False,
+        "reasoning_output": True,
+        "tool_calling": True,
+        "structured_output": True,
+        "attachment": True,
+        "temperature": True,
+        "tool_call_streaming": True,
+    },
     "qwen/qwen3.8-flash": {
         "name": "Qwen3.8 Flash",
         "release_date": "2026-08-26",
@@ -6863,28 +6884,6 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "temperature": True,
         "tool_call_streaming": True,
     },
-    "stealth/union-alpha": {
-        "name": "Union Alpha",
-        "release_date": "2026-09-16",
-        "last_updated": "2026-09-16",
-        "open_weights": False,
-        "max_input_tokens": 262144,
-        "max_output_tokens": 131072,
-        "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": False,
-        "tool_calling": True,
-        "structured_output": False,
-        "attachment": True,
-        "temperature": True,
-        "tool_call_streaming": True,
-    },
     "stepfun/step-3.5-flash": {
         "name": "Step 3.5 Flash",
         "release_date": "2026-01-29",
@@ -7237,6 +7236,28 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "temperature": True,
         "tool_call_streaming": True,
     },
+    "unbiased/pareto": {
+        "name": "Pareto",
+        "release_date": "2026-09-17",
+        "last_updated": "2026-09-17",
+        "open_weights": False,
+        "max_input_tokens": 262144,
+        "max_output_tokens": 131072,
+        "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": False,
+        "tool_calling": True,
+        "structured_output": False,
+        "attachment": True,
+        "temperature": True,
+        "tool_call_streaming": True,
+    },
     "undi95/remm-slerp-l2-13b": {
         "name": "ReMM SLERP 13B",
         "release_date": "2023-07-22",
@@ -7579,7 +7600,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "last_updated": "2025-09-30",
         "open_weights": True,
         "max_input_tokens": 204800,
-        "max_output_tokens": 131072,
+        "max_output_tokens": 16384,
         "text_inputs": True,
         "image_inputs": False,
         "audio_inputs": False,
@@ -7733,7 +7754,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "last_updated": "2026-06-13",
         "open_weights": True,
         "max_input_tokens": 1048576,
-        "max_output_tokens": 131072,
+        "max_output_tokens": 163840,
         "text_inputs": True,
         "image_inputs": False,
         "audio_inputs": False,
@@ -7979,7 +8000,7 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "last_updated": "2026-08-01",
         "open_weights": False,
         "max_input_tokens": 1310720,
-        "max_output_tokens": 393216,
+        "max_output_tokens": 943718,
         "text_inputs": True,
         "image_inputs": False,
         "audio_inputs": False,
diff --git a/libs/partners/xai/langchain_xai/data/_profiles.py b/libs/partners/xai/langchain_xai/data/_profiles.py
index 1dbdfc6eba..ee40449891 100644
--- a/libs/partners/xai/langchain_xai/data/_profiles.py
+++ b/libs/partners/xai/langchain_xai/data/_profiles.py
@@ -206,50 +206,6 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "temperature": False,
         "tool_call_streaming": True,
     },
-    "grok-imagine-image-2.0": {
-        "name": "Grok Imagine Image 2.0",
-        "release_date": "2026-08-07",
-        "last_updated": "2026-08-07",
-        "open_weights": False,
-        "max_input_tokens": 64000,
-        "max_output_tokens": 0,
-        "text_inputs": True,
-        "image_inputs": True,
-        "audio_inputs": False,
-        "pdf_inputs": True,
-        "video_inputs": False,
-        "text_outputs": False,
-        "image_outputs": True,
-        "audio_outputs": False,
-        "video_outputs": False,
-        "reasoning_output": False,
-        "tool_calling": False,
-        "attachment": True,
-        "temperature": False,
-        "tool_call_streaming": True,
-    },
-    "grok-imagine-image-quality": {
-        "name": "Grok Imagine Image Quality",
-        "release_date": "2026-04-03",
-        "last_updated": "2026-04-03",
-        "open_weights": False,
-        "max_input_tokens": 16000,
-        "max_output_tokens": 0,
-        "text_inputs": True,
-        "image_inputs": True,
-        "audio_inputs": False,
-        "pdf_inputs": True,
-        "video_inputs": False,
-        "text_outputs": False,
-        "image_outputs": True,
-        "audio_outputs": False,
-        "video_outputs": False,
-        "reasoning_output": False,
-        "tool_calling": False,
-        "attachment": True,
-        "temperature": False,
-        "tool_call_streaming": True,
-    },
     "grok-imagine-video": {
         "name": "Grok Imagine Video",
         "release_date": "2026-01-28",