feat: ability to pick a model when launching claude

Author: Dan Rousseau

lua/claudecode/init.lua

@@ -299,7 +299,7 @@ function M._create_commands()
       if current_mode == "v" or current_mode == "V" or current_mode == "\22" then -- \22 is CTRL-V (blockwise visual mode)
         vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes("<Esc>", true, false, true), "n", false)
       end
-      terminal.toggle({}) -- `opts.fargs` can be used for future enhancements.
+      terminal.toggle({}, nil) -- `opts.fargs` can be used for future enhancements.
     end, {
       nargs = "?",
       desc = "Toggle the Claude Code terminal window",
@@ -325,6 +325,34 @@ function M._create_commands()
   end
 end
 
+M.open_with_model = function()
+  local models = {
+    { name = "Claude Opus 4 (Latest)", value = "claude-opus-4-20250514" },
+    { name = "Claude Sonnet 4 (Latest)", value = "claude-sonnet-4-20250514" },
+    { name = "Claude 3.7 Sonnet (Latest)", value = "claude-3-7-sonnet-latest" },
+    { name = "Claude 3.5 Haiku (Latest)", value = "claude-3-5-haiku-latest" },
+  }
+
+  vim.ui.select(models, {
+    prompt = "Select Claude model:",
+    format_item = function(item)
+      return item.name
+    end,
+  }, function(choice)
+    if not choice then
+      return -- User cancelled
+    end
+
+    local terminal_ok, terminal = pcall(require, "claudecode.terminal")
+    if not terminal_ok then
+      vim.notify("Terminal module not available", vim.log.levels.ERROR)
+      return
+    end
+
+    terminal.open({}, "--model " .. choice.value)
+  end)
+end
+
 --- Get version information
 ---@return table Version information
 function M.get_version()

lua/claudecode/terminal.lua

@@ -37,9 +37,12 @@ local native_term_tip_shown = false
 -- Uses the `terminal_cmd` from the module's configuration, or defaults to "claude".
 -- @local
 -- @return string The command to execute.
-local function get_claude_command()
+local function get_claude_command(model)
   local cmd_from_config = term_module_config.terminal_cmd
   if not cmd_from_config or cmd_from_config == "" then
+    if model ~= nil then
+      return "claude " .. model -- Default if not configured
+    end
     return "claude" -- Default if not configured
   end
   return cmd_from_config
@@ -332,8 +335,8 @@ end
 -- @local
 -- @return string|nil cmd_string The command string, or nil on failure.
 -- @return table|nil env_table The environment variables table, or nil on failure.
-local function get_claude_command_and_env()
-  local cmd_string = get_claude_command()
+local function get_claude_command_and_env(model)
+  local cmd_string = get_claude_command(model)
   if not cmd_string or cmd_string == "" then
     vim.notify("Claude terminal base command cannot be determined.", vim.log.levels.ERROR)
     return nil, nil
@@ -387,10 +390,10 @@ end
 
 --- Opens or focuses the Claude terminal.
 -- @param opts_override table (optional) Overrides for terminal appearance (split_side, split_width_percentage).
-function M.open(opts_override)
+function M.open(opts_override, model)
   local provider = get_effective_terminal_provider()
   local effective_config = build_effective_term_config(opts_override)
-  local cmd_string, claude_env_table = get_claude_command_and_env()
+  local cmd_string, claude_env_table = get_claude_command_and_env(model)
 
   if not cmd_string then
     -- Error already notified by the helper function
@@ -460,10 +463,10 @@ end
 
 --- Toggles the Claude terminal open or closed.
 -- @param opts_override table (optional) Overrides for terminal appearance (split_side, split_width_percentage).
-function M.toggle(opts_override)
+function M.toggle(opts_override, model)
   local provider = get_effective_terminal_provider()
   local effective_config = build_effective_term_config(opts_override)
-  local cmd_string, claude_env_table = get_claude_command_and_env()
+  local cmd_string, claude_env_table = get_claude_command_and_env(model)
 
   if not cmd_string then
     return -- Error already notified