diff --git a/pr_agent/algo/__init__.py b/pr_agent/algo/__init__.py
index d32ad2a7..fb72e340 100644
--- a/pr_agent/algo/__init__.py
+++ b/pr_agent/algo/__init__.py
@@ -63,6 +63,7 @@ MAX_TOKENS = {
     'vertex_ai/claude-3-5-sonnet-v2@20241022': 100000,
     'vertex_ai/claude-3-7-sonnet@20250219': 200000,
     'vertex_ai/claude-sonnet-4@20250514': 200000,
+    'vertex_ai/claude-sonnet-4-5@20250929': 200000,
     'vertex_ai/gemini-1.5-pro': 1048576,
     'vertex_ai/gemini-2.5-pro-preview-03-25': 1048576,
     'vertex_ai/gemini-2.5-pro-preview-05-06': 1048576,
@@ -95,6 +96,7 @@ MAX_TOKENS = {
     'anthropic/claude-3-5-sonnet-20241022': 100000,
     'anthropic/claude-3-7-sonnet-20250219': 200000,
     'anthropic/claude-sonnet-4-20250514': 200000,
+    'anthropic/claude-sonnet-4-5-20250929': 200000,
     'claude-3-7-sonnet-20250219': 200000,
     'anthropic/claude-3-5-haiku-20241022': 100000,
     'bedrock/anthropic.claude-instant-v1': 100000,
@@ -108,13 +110,16 @@ MAX_TOKENS = {
     'bedrock/anthropic.claude-3-5-sonnet-20241022-v2:0': 100000,
     'bedrock/anthropic.claude-3-7-sonnet-20250219-v1:0': 200000,
     'bedrock/anthropic.claude-sonnet-4-20250514-v1:0': 200000,
+    'bedrock/anthropic.claude-sonnet-4-5-20250929-v1:0': 200000,
     "bedrock/us.anthropic.claude-opus-4-20250514-v1:0": 200000,
     "bedrock/us.anthropic.claude-3-5-sonnet-20241022-v2:0": 100000,
     "bedrock/us.anthropic.claude-3-7-sonnet-20250219-v1:0": 200000,
     "bedrock/us.anthropic.claude-sonnet-4-20250514-v1:0": 200000,
+    "bedrock/us.anthropic.claude-sonnet-4-5-20250929-v1:0": 200000,
     "bedrock/apac.anthropic.claude-3-5-sonnet-20241022-v2:0": 100000,
     "bedrock/apac.anthropic.claude-3-7-sonnet-20250219-v1:0": 200000,
     "bedrock/apac.anthropic.claude-sonnet-4-20250514-v1:0": 200000,
+    "bedrock/global.anthropic.claude-sonnet-4-5-20250929-v1:0": 200000,
     'claude-3-5-sonnet': 100000,
     'bedrock/us.meta.llama4-scout-17b-instruct-v1:0': 128000,
     'bedrock/us.meta.llama4-maverick-17b-instruct-v1:0': 128000,
diff --git a/requirements.txt b/requirements.txt
index 50658b69..9e2f3c44 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 aiohttp==3.10.2
-anthropic>=0.52.0
+anthropic>=0.69.0
 #anthropic[vertex]==0.47.1
 atlassian-python-api==3.41.4
 azure-devops==7.1.0b3