diff --git a/backend/onyx/llm/llm_provider_options.py b/backend/onyx/llm/llm_provider_options.py
index 415dea5af2..0dd66a289f 100644
--- a/backend/onyx/llm/llm_provider_options.py
+++ b/backend/onyx/llm/llm_provider_options.py
@@ -45,6 +45,7 @@ OPEN_AI_MODEL_NAMES = [
     "o1-mini",
     "o1",
     "gpt-4",
+    "gpt-4.1",
     "gpt-4o",
     "gpt-4o-mini",
     "o1-preview",
diff --git a/backend/requirements/default.txt b/backend/requirements/default.txt
index bb6486f63d..780a0839c3 100644
--- a/backend/requirements/default.txt
+++ b/backend/requirements/default.txt
@@ -39,7 +39,7 @@ langchainhub==0.1.21
 langgraph==0.2.72
 langgraph-checkpoint==2.0.13
 langgraph-sdk==0.1.44
-litellm==1.63.8
+litellm==1.66.1
 lxml==5.3.0
 lxml_html_clean==0.2.2
 llama-index==0.12.28
@@ -48,7 +48,7 @@ msal==1.28.0
 nltk==3.9.1
 Office365-REST-Python-Client==2.5.9
 oauthlib==3.2.2
-openai==1.66.3
+openai==1.75.0
 openpyxl==3.1.2
 passlib==1.7.4
 playwright==1.41.2
diff --git a/backend/requirements/model_server.txt b/backend/requirements/model_server.txt
index dec5b8e534..e9390f3ba6 100644
--- a/backend/requirements/model_server.txt
+++ b/backend/requirements/model_server.txt
@@ -4,7 +4,7 @@ cohere==5.6.1
 fastapi==0.115.12
 google-cloud-aiplatform==1.58.0
 numpy==1.26.4
-openai==1.66.3
+openai==1.75.0
 pydantic==2.8.2
 retry==0.9.2
 safetensors==0.5.3
@@ -14,7 +14,7 @@ torch==2.6.0
 transformers==4.49.0
 uvicorn==0.21.1
 voyageai==0.2.3
-litellm==1.63.8
+litellm==1.66.1
 sentry-sdk[fastapi,celery,starlette]==2.14.0
 aioboto3==14.0.0
 prometheus_fastapi_instrumentator==7.1.0
diff --git a/web/src/lib/hooks.ts b/web/src/lib/hooks.ts
index 5ca7fdfbc4..c2974d11d4 100644
--- a/web/src/lib/hooks.ts
+++ b/web/src/lib/hooks.ts
@@ -673,6 +673,7 @@ const MODEL_DISPLAY_NAMES: { [key: string]: string } = {
   "o1-mini": "o1 Mini",
   "o1-preview": "o1 Preview",
   o1: "o1",
+  "gpt-4.1": "GPT 4.1",
   "gpt-4": "GPT 4",
   "gpt-4o": "GPT 4o",
   "gpt-4o-2024-08-06": "GPT 4o (Structured Outputs)",
@@ -813,7 +814,15 @@ export function getDisplayNameForModel(modelName: string): string {
 }
 
 export const defaultModelsByProvider: { [name: string]: string[] } = {
-  openai: ["gpt-4", "gpt-4o", "gpt-4o-mini", "o3-mini", "o1-mini", "o1"],
+  openai: [
+    "gpt-4",
+    "gpt-4o",
+    "gpt-4o-mini",
+    "gpt-4.1",
+    "o3-mini",
+    "o1-mini",
+    "o1",
+  ],
   bedrock: [
     "meta.llama3-1-70b-instruct-v1:0",
     "meta.llama3-1-8b-instruct-v1:0",
diff --git a/web/src/lib/llm/utils.ts b/web/src/lib/llm/utils.ts
index c4ea5829ac..8a6beff696 100644
--- a/web/src/lib/llm/utils.ts
+++ b/web/src/lib/llm/utils.ts
@@ -64,6 +64,7 @@ export function getLLMProviderOverrideForPersona(
 
 const MODEL_NAMES_SUPPORTING_IMAGE_INPUT = [
   "gpt-4o",
+  "gpt-4.1",
   "gpt-4o-mini",
   "gpt-4-vision-preview",
   "gpt-4-turbo",