diff --git a/.changeset/khaki-humans-raise.md b/.changeset/khaki-humans-raise.md
new file mode 100644
index 0000000000000000000000000000000000000000..ac50142d8cce4a70811141ef83301ee5dcb112ad
--- /dev/null
+++ b/.changeset/khaki-humans-raise.md
@@ -0,0 +1,5 @@
+---
+"@llamaindex/openai": patch
+---
+
+feat: support gpt-4.5
diff --git a/examples/openai.ts b/examples/openai.ts
index 20a383d8ee0da7d64aa5ee1bbea56408e9f165c0..64acc2f08a6e776c883527c4f05623f80b97e1cb 100644
--- a/examples/openai.ts
+++ b/examples/openai.ts
@@ -1,7 +1,7 @@
 import { OpenAI, OpenAIEmbedding } from "@llamaindex/openai";
 
 (async () => {
-  const llm = new OpenAI({ model: "gpt-4-1106-preview", temperature: 0.1 });
+  const llm = new OpenAI({ model: "gpt-4.5-preview", temperature: 0.1 });
 
   // complete api
   const response1 = await llm.complete({ prompt: "How are you?" });
diff --git a/packages/providers/openai/package.json b/packages/providers/openai/package.json
index 2f25401b97f5865294dde1453e324fb034b888bf..474cc006674d91302632687208dd92eb14a01cc0 100644
--- a/packages/providers/openai/package.json
+++ b/packages/providers/openai/package.json
@@ -35,6 +35,6 @@
   "dependencies": {
     "@llamaindex/core": "workspace:*",
     "@llamaindex/env": "workspace:*",
-    "openai": "^4.83.0"
+    "openai": "^4.86.0"
   }
 }
diff --git a/packages/providers/openai/src/llm.ts b/packages/providers/openai/src/llm.ts
index 6717b2e6898dcc97910523bc471f8f2ce25e587e..3383d75518d6487919226f727ac8e0e8729a8568 100644
--- a/packages/providers/openai/src/llm.ts
+++ b/packages/providers/openai/src/llm.ts
@@ -44,6 +44,8 @@ export const GPT4_MODELS = {
   "chatgpt-4o-latest": {
     contextWindow: 128000,
   },
+  "gpt-4.5-preview": { contextWindow: 128000 },
+  "gpt-4.5-preview-2025-02-27": { contextWindow: 128000 },
   "gpt-4": { contextWindow: 8192 },
   "gpt-4-32k": { contextWindow: 32768 },
   "gpt-4-32k-0613": { contextWindow: 32768 },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f943208147bde2e7aa2323c14062f3e3487f21a5..251140444dc3440d3709a9385cb24db1a354ca9c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -117,7 +117,7 @@ importers:
         version: 1.6.0(@aws-sdk/credential-provider-web-identity@3.744.0)
       ai:
         specifier: ^3.4.33
-        version: 3.4.33(openai@4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(react@19.0.0)(sswr@2.1.0(svelte@5.19.10))(svelte@5.19.10)(vue@3.5.13(typescript@5.7.2))(zod@3.24.2)
+        version: 3.4.33(openai@4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(react@19.0.0)(sswr@2.1.0(svelte@5.19.10))(svelte@5.19.10)(vue@3.5.13(typescript@5.7.2))(zod@3.24.2)
       class-variance-authority:
         specifier: ^0.7.0
         version: 0.7.1
@@ -1341,8 +1341,8 @@ importers:
         specifier: workspace:*
         version: link:../../env
       openai:
-        specifier: ^4.83.0
-        version: 4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2)
+        specifier: ^4.86.0
+        version: 4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2)
     devDependencies:
       bunchee:
         specifier: 6.3.4
@@ -1446,7 +1446,7 @@ importers:
         version: link:../../../env
       chromadb:
         specifier: 1.10.3
-        version: 1.10.3(cohere-ai@7.14.0)(openai@4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(voyageai@0.0.3-1)
+        version: 1.10.3(cohere-ai@7.14.0)(openai@4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(voyageai@0.0.3-1)
       chromadb-default-embed:
         specifier: ^2.13.2
         version: 2.13.2
@@ -9338,6 +9338,18 @@ packages:
       zod:
         optional: true
 
+  openai@4.86.0:
+    resolution: {integrity: sha512-ggnH3vm+o9UvVQl/MxzDgpxsH9j7UoD17AeICcLSr1NCNb8PfwgMlp/K56ErQUxpkkcIA5mNkTuJAFSnoHej8A==}
+    hasBin: true
+    peerDependencies:
+      ws: ^8.18.0
+      zod: ^3.23.8
+    peerDependenciesMeta:
+      ws:
+        optional: true
+      zod:
+        optional: true
+
   openapi-sampler@1.6.1:
     resolution: {integrity: sha512-s1cIatOqrrhSj2tmJ4abFYZQK6l5v+V4toO5q1Pa0DyN8mtyqy2I+Qrj5W9vOELEtybIMQs/TBZGVO/DtTFK8w==}
 
@@ -15956,7 +15968,7 @@ snapshots:
 
   '@types/node-fetch@2.6.12':
     dependencies:
-      '@types/node': 18.19.76
+      '@types/node': 22.9.0
       form-data: 4.0.2
 
   '@types/node-forge@1.3.11':
@@ -15976,6 +15988,7 @@ snapshots:
   '@types/node@22.13.5':
     dependencies:
       undici-types: 6.20.0
+    optional: true
 
   '@types/node@22.9.0':
     dependencies:
@@ -16570,7 +16583,7 @@ snapshots:
     dependencies:
       humanize-ms: 1.2.1
 
-  ai@3.4.33(openai@4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(react@19.0.0)(sswr@2.1.0(svelte@5.19.10))(svelte@5.19.10)(vue@3.5.13(typescript@5.7.2))(zod@3.24.2):
+  ai@3.4.33(openai@4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(react@19.0.0)(sswr@2.1.0(svelte@5.19.10))(svelte@5.19.10)(vue@3.5.13(typescript@5.7.2))(zod@3.24.2):
     dependencies:
       '@ai-sdk/provider': 0.0.26
       '@ai-sdk/provider-utils': 1.0.22(zod@3.24.2)
@@ -16586,7 +16599,7 @@ snapshots:
       secure-json-parse: 2.7.0
       zod-to-json-schema: 3.24.1(zod@3.24.2)
     optionalDependencies:
-      openai: 4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2)
+      openai: 4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2)
       react: 19.0.0
       sswr: 2.1.0(svelte@5.19.10)
       svelte: 5.19.10
@@ -17210,13 +17223,13 @@ snapshots:
     transitivePeerDependencies:
       - bare-buffer
 
-  chromadb@1.10.3(cohere-ai@7.14.0)(openai@4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(voyageai@0.0.3-1):
+  chromadb@1.10.3(cohere-ai@7.14.0)(openai@4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2))(voyageai@0.0.3-1):
     dependencies:
       cliui: 8.0.1
       isomorphic-fetch: 3.0.0
     optionalDependencies:
       cohere-ai: 7.14.0
-      openai: 4.83.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2)
+      openai: 4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2)
       voyageai: 0.0.3-1
     transitivePeerDependencies:
       - encoding
@@ -21564,6 +21577,21 @@ snapshots:
     transitivePeerDependencies:
       - encoding
 
+  openai@4.86.0(ws@8.18.0(bufferutil@4.0.9))(zod@3.24.2):
+    dependencies:
+      '@types/node': 18.19.76
+      '@types/node-fetch': 2.6.12
+      abort-controller: 3.0.0
+      agentkeepalive: 4.6.0
+      form-data-encoder: 1.7.2
+      formdata-node: 4.4.1
+      node-fetch: 2.7.0
+    optionalDependencies:
+      ws: 8.18.0(bufferutil@4.0.9)
+      zod: 3.24.2
+    transitivePeerDependencies:
+      - encoding
+
   openapi-sampler@1.6.1:
     dependencies:
       '@types/json-schema': 7.0.15
@@ -22087,7 +22115,7 @@ snapshots:
       '@protobufjs/pool': 1.1.0
       '@protobufjs/utf8': 1.1.0
       '@types/long': 4.0.2
-      '@types/node': 22.13.5
+      '@types/node': 22.9.0
       long: 4.0.0
 
   protobufjs@7.4.0:
@@ -23952,7 +23980,8 @@ snapshots:
 
   undici-types@6.19.8: {}
 
-  undici-types@6.20.0: {}
+  undici-types@6.20.0:
+    optional: true
 
   undici@5.28.5:
     dependencies: