diff --git a/lua/plugin/code-companion.lua b/lua/plugin/code-companion.lua
index 6e524a7..f3e175e 100644
--- a/lua/plugin/code-companion.lua
+++ b/lua/plugin/code-companion.lua
@@ -3,7 +3,7 @@ require("codecompanion").setup({
     chat = {
         adapter = {
             name = "copilot",
-            model = "claude-3.7-sonnet",
+            model = "claude-sonnet-4",
           },
     },
   },
diff --git a/lua/plugins.lua b/lua/plugins.lua
index 2518cc6..68be979 100644
--- a/lua/plugins.lua
+++ b/lua/plugins.lua
@@ -40,6 +40,10 @@ require("lazy").setup({
 			lazygit = { enabled = true },
 		},
 	},
+	{
+		"MeanderingProgrammer/render-markdown.nvim",
+		ft = { "markdown", "codecompanion" },
+	},
 	{
 		"nvim-treesitter/nvim-treesitter",
 		build = ":TSUpdate",
@@ -104,13 +108,13 @@ require("lazy").setup({
 			vim.g.db_ui_use_nerd_fonts = 1
 		end,
 	},
-    {
-      "olimorris/codecompanion.nvim",
-      dependencies = {
-        "nvim-lua/plenary.nvim",
-        "nvim-treesitter/nvim-treesitter",
-      }
-    },
+	{
+		"olimorris/codecompanion.nvim",
+		dependencies = {
+			"nvim-lua/plenary.nvim",
+			"nvim-treesitter/nvim-treesitter",
+		},
+	},
 }, opts)
 
 local files = vim.split(vim.fn.globpath(vim.fn.stdpath("config") .. "/lua/plugin", "*.lua", true), "\n")
@@ -119,3 +123,4 @@ for _, f in ipairs(files) do
 	local name = vim.fn.fnamemodify(f, ":t:r")
 	require("plugin." .. name)
 end
+
diff --git a/lua/remap.lua b/lua/remap.lua
index 9a98430..0aaf481 100644
--- a/lua/remap.lua
+++ b/lua/remap.lua
@@ -29,3 +29,7 @@ vim.keymap.set("n", "<leader>tc", ":tabc<CR>")
 -- copy current file path
 vim.keymap.set("n", "<leader>cp", ":let @+ = expand('%')<CR>")
 
+-- code companion
+vim.keymap.set({"n", "v"}, "<leader>cc", ":CodeCompanionChat Toggle<CR>")
+vim.keymap.set("v", "<leader>acc", "<cmd>CodeCompanionChat Add<cr>")
+