diff --git a/.all-contributorsrc b/.all-contributorsrc
index 78d5ba16..a4cd5633 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -396,6 +396,13 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/77256586?v=4",
       "profile": "https://m4dd0c.netlify.app",
       "contributions": ["code"]
+    },
+    {
+      "login": "azdanov",
+      "name": "Anton Ždanov",
+      "avatar_url": "https://avatars.githubusercontent.com/u/6123841?v=4",
+      "profile": "https://www.azdanov.dev",
+      "contributions": ["doc", "code"]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd6dc252..797eb8d3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.12.0](https://github.com/CopilotC-Nvim/CopilotChat.nvim/compare/v3.11.1...v3.12.0) (2025-05-09)
+
+
+### Features
+
+* switch to new default model gpt-4.1 ([5f105cf](https://github.com/CopilotC-Nvim/CopilotChat.nvim/commit/5f105cf2453585487d3c9ccfe7fd129d3344056c))
+
 ## [3.11.1](https://github.com/CopilotC-Nvim/CopilotChat.nvim/compare/v3.11.0...v3.11.1) (2025-04-21)
 
 
diff --git a/README.md b/README.md
index 55d60a7f..d66bbb02 100644
--- a/README.md
+++ b/README.md
@@ -453,7 +453,7 @@ Below are all available configuration options with their default values:
 
   system_prompt = 'COPILOT_INSTRUCTIONS', -- System prompt to use (can be specified manually in prompt via /).
 
-  model = 'gpt-4o-2024-11-20', -- Default model to use, see ':CopilotChatModels' for available models (can be specified manually in prompt via $).
+  model = 'gpt-4.1', -- Default model to use, see ':CopilotChatModels' for available models (can be specified manually in prompt via $).
   agent = 'copilot', -- Default agent to use, see ':CopilotChatAgents' for available agents (can be specified manually in prompt via @).
   context = nil, -- Default context or array of contexts to use (can be specified manually in prompt via #).
   sticky = nil, -- Default sticky prompt or array of sticky prompts to use at start of every new chat.
@@ -761,7 +761,7 @@ require("CopilotChat").load("my_debugging_session")
 
 -- Use custom context and model
 require("CopilotChat").ask("How can I optimize this?", {
-  model = "gpt-4o",
+  model = "gpt-4.1",
   context = {"buffer", "git:staged"}
 })
 ```
@@ -885,6 +885,9 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://ouuan.moe/about"><img src="https://avatars.githubusercontent.com/u/30581822?v=4?s=100" width="100px;" alt="Yufan You"/><br /><sub><b>Yufan You</b></sub></a><br /><a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=ouuan" title="Documentation">📖</a> <a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=ouuan" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://m4dd0c.netlify.app"><img src="https://avatars.githubusercontent.com/u/77256586?v=4?s=100" width="100px;" alt="Manish Kumar"/><br /><sub><b>Manish Kumar</b></sub></a><br /><a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=m4dd0c" title="Code">💻</a></td>
     </tr>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://www.azdanov.dev"><img src="https://avatars.githubusercontent.com/u/6123841?v=4?s=100" width="100px;" alt="Anton Ždanov"/><br /><sub><b>Anton Ždanov</b></sub></a><br /><a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=azdanov" title="Documentation">📖</a> <a href="https://github.com/CopilotC-Nvim/CopilotChat.nvim/commits?author=azdanov" title="Code">💻</a></td>
+    </tr>
   </tbody>
 </table>
 
diff --git a/doc/CopilotChat.txt b/doc/CopilotChat.txt
index 48d9bfd7..65910dc0 100644
--- a/doc/CopilotChat.txt
+++ b/doc/CopilotChat.txt
@@ -1,4 +1,4 @@
-*CopilotChat.txt*          For NVIM v0.8.0          Last change: 2025 April 21
+*CopilotChat.txt*           For NVIM v0.8.0           Last change: 2025 May 09
 
 ==============================================================================
 Table of Contents                              *CopilotChat-table-of-contents*
@@ -512,7 +512,7 @@ Below are all available configuration options with their default values:
     
       system_prompt = 'COPILOT_INSTRUCTIONS', -- System prompt to use (can be specified manually in prompt via /).
     
-      model = 'gpt-4o-2024-11-20', -- Default model to use, see ':CopilotChatModels' for available models (can be specified manually in prompt via $).
+      model = 'gpt-4.1', -- Default model to use, see ':CopilotChatModels' for available models (can be specified manually in prompt via $).
       agent = 'copilot', -- Default agent to use, see ':CopilotChatAgents' for available agents (can be specified manually in prompt via @).
       context = nil, -- Default context or array of contexts to use (can be specified manually in prompt via #).
       sticky = nil, -- Default sticky prompt or array of sticky prompts to use at start of every new chat.
@@ -827,7 +827,7 @@ EXAMPLE USAGE                                      *CopilotChat-example-usage*
     
     -- Use custom context and model
     require("CopilotChat").ask("How can I optimize this?", {
-      model = "gpt-4o",
+      model = "gpt-4.1",
       context = {"buffer", "git:staged"}
     })
 <
diff --git a/lua/CopilotChat/config.lua b/lua/CopilotChat/config.lua
index dc1af205..30c428e5 100644
--- a/lua/CopilotChat/config.lua
+++ b/lua/CopilotChat/config.lua
@@ -61,7 +61,7 @@ return {
 
   system_prompt = 'COPILOT_INSTRUCTIONS', -- System prompt to use (can be specified manually in prompt via /).
 
-  model = 'gpt-4o', -- Default model to use, see ':CopilotChatModels' for available models (can be specified manually in prompt via $).
+  model = 'gpt-4.1', -- Default model to use, see ':CopilotChatModels' for available models (can be specified manually in prompt via $).
   agent = 'none', -- Default agent to use, see ':CopilotChatAgents' for available agents (can be specified manually in prompt via @).
   context = nil, -- Default context or array of contexts to use (can be specified manually in prompt via #).
   sticky = nil, -- Default sticky prompt or array of sticky prompts to use at start of every new chat.
diff --git a/version.txt b/version.txt
index 371cfe35..92536a9e 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-3.11.1
+3.12.0