diff --git a/libs/partners/anthropic/langchain_anthropic/data/_profiles.py b/libs/partners/anthropic/langchain_anthropic/data/_profiles.py
index 4572689141b..a38c8441e93 100644
--- a/libs/partners/anthropic/langchain_anthropic/data/_profiles.py
+++ b/libs/partners/anthropic/langchain_anthropic/data/_profiles.py
@@ -444,9 +444,9 @@ _PROFILES: dict[str, dict[str, Any]] = {
     "claude-opus-4-6": {
         "name": "Claude Opus 4.6",
         "release_date": "2026-02-05",
-        "last_updated": "2026-02-05",
+        "last_updated": "2026-03-13",
         "open_weights": False,
-        "max_input_tokens": 200000,
+        "max_input_tokens": 1000000,
         "max_output_tokens": 128000,
         "text_inputs": True,
         "image_inputs": True,
@@ -569,9 +569,9 @@ _PROFILES: dict[str, dict[str, Any]] = {
     "claude-sonnet-4-6": {
         "name": "Claude Sonnet 4.6",
         "release_date": "2026-02-17",
-        "last_updated": "2026-02-17",
+        "last_updated": "2026-03-13",
         "open_weights": False,
-        "max_input_tokens": 200000,
+        "max_input_tokens": 1000000,
         "max_output_tokens": 64000,
         "text_inputs": True,
         "image_inputs": True,
diff --git a/libs/partners/openrouter/langchain_openrouter/data/_profiles.py b/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
index 711cf236591..02e05d14578 100644
--- a/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
+++ b/libs/partners/openrouter/langchain_openrouter/data/_profiles.py
@@ -962,6 +962,28 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": True,
         "temperature": True,
     },
+    "google/gemini-3.1-flash-lite-preview": {
+        "name": "Gemini 3.1 Flash Lite Preview",
+        "release_date": "2026-03-03",
+        "last_updated": "2026-03-03",
+        "open_weights": False,
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 65536,
+        "text_inputs": True,
+        "image_inputs": True,
+        "audio_inputs": True,
+        "pdf_inputs": True,
+        "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,
+    },
     "google/gemini-3.1-pro-preview": {
         "name": "Gemini 3.1 Pro Preview",
         "release_date": "2026-02-19",
@@ -2851,38 +2873,6 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": True,
         "temperature": True,
     },
-    "openrouter/healer-alpha": {
-        "max_input_tokens": 262144,
-        "max_output_tokens": 64000,
-        "text_inputs": True,
-        "image_inputs": True,
-        "audio_inputs": True,
-        "pdf_inputs": True,
-        "video_inputs": False,
-        "text_outputs": True,
-        "image_outputs": False,
-        "audio_outputs": False,
-        "video_outputs": False,
-        "reasoning_output": True,
-        "tool_calling": True,
-        "structured_output": True,
-    },
-    "openrouter/hunter-alpha": {
-        "max_input_tokens": 1048576,
-        "max_output_tokens": 64000,
-        "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": True,
-        "tool_calling": True,
-        "structured_output": True,
-    },
     "openrouter/sherlock-dash-alpha": {
         "name": "Sherlock Dash Alpha",
         "release_date": "2025-11-15",
@@ -3874,6 +3864,48 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": False,
         "temperature": True,
     },
+    "x-ai/grok-4.20-beta": {
+        "name": "Grok 4.20 Beta",
+        "status": "beta",
+        "release_date": "2026-03-12",
+        "last_updated": "2026-03-12",
+        "open_weights": False,
+        "max_input_tokens": 2000000,
+        "max_output_tokens": 30000,
+        "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": True,
+        "attachment": True,
+        "temperature": True,
+    },
+    "x-ai/grok-4.20-multi-agent-beta": {
+        "name": "Grok 4.20 Multi - Agent Beta",
+        "status": "beta",
+        "release_date": "2026-03-12",
+        "last_updated": "2026-03-12",
+        "open_weights": False,
+        "max_input_tokens": 2000000,
+        "max_output_tokens": 30000,
+        "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,
+        "attachment": True,
+        "temperature": True,
+    },
     "x-ai/grok-code-fast-1": {
         "name": "Grok Code Fast 1",
         "release_date": "2025-08-26",
diff --git a/libs/partners/xai/langchain_xai/data/_profiles.py b/libs/partners/xai/langchain_xai/data/_profiles.py
index 3d2e0607df2..f05b847d214 100644
--- a/libs/partners/xai/langchain_xai/data/_profiles.py
+++ b/libs/partners/xai/langchain_xai/data/_profiles.py
@@ -396,11 +396,11 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": True,
         "temperature": True,
     },
-    "grok-4.20-experimental-beta-0304-non-reasoning": {
-        "name": "Grok 4.20 (Experimental, Non-Reasoning)",
+    "grok-4.20-beta-latest-non-reasoning": {
+        "name": "Grok 4.20 Beta (Non-Reasoning)",
         "status": "beta",
-        "release_date": "2026-03-04",
-        "last_updated": "2026-03-04",
+        "release_date": "2026-03-09",
+        "last_updated": "2026-03-09",
         "open_weights": False,
         "max_input_tokens": 2000000,
         "max_output_tokens": 30000,
@@ -417,11 +417,11 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": True,
         "temperature": True,
     },
-    "grok-4.20-experimental-beta-0304-reasoning": {
-        "name": "Grok 4.20 (Experimental, Reasoning)",
+    "grok-4.20-beta-latest-reasoning": {
+        "name": "Grok 4.20 Beta (Reasoning)",
         "status": "beta",
-        "release_date": "2026-03-04",
-        "last_updated": "2026-03-04",
+        "release_date": "2026-03-09",
+        "last_updated": "2026-03-09",
         "open_weights": False,
         "max_input_tokens": 2000000,
         "max_output_tokens": 30000,
@@ -438,11 +438,11 @@ _PROFILES: dict[str, dict[str, Any]] = {
         "attachment": True,
         "temperature": True,
     },
-    "grok-4.20-multi-agent-experimental-beta-0304": {
-        "name": "Grok 4.20 Multi-Agent (Experimental)",
+    "grok-4.20-multi-agent-beta-latest": {
+        "name": "Grok 4.20 Multi-Agent Beta",
         "status": "beta",
-        "release_date": "2026-03-04",
-        "last_updated": "2026-03-04",
+        "release_date": "2026-03-09",
+        "last_updated": "2026-03-09",
         "open_weights": False,
         "max_input_tokens": 2000000,
         "max_output_tokens": 30000,