Using OpenRouter

[gvarela]

Oli asked me to post how to configure the openai_compatible adapter configuration for OpenRouter.

        openrouter_claude = function()
          return require("codecompanion.adapters").extend("openai_compatible", {
            env = {
              url = "https://openrouter.ai/api",
              api_key = "OPENROUTER_API_KEY",
              chat_url = "/v1/chat/completions",
            },
            schema = {
              model = {
                default = "anthropic/claude-3.7-sonnet",
              },
            },
          })

[tlvenn]

Thanks a lot @gvarela

[tlvenn]

One thing I wonder though when i use claude through open router and therefore leveraging the openai_compatible adapter, am I actually not loosing the fine tuning and extra things that comes with the anthropic adaptor @olimorris ?

For example this a497adb ?

[gvarela]

@tlvenn I haven't played with it yet. But, you would do that based on the docs here https://codecompanion.olimorris.dev/configuration/adapters#example-using-openai-compatible-models

[hanipcode]

hi, thanks for the config, I update it to have model switching capablity

here is my config

return {
	"olimorris/codecompanion.nvim",
	config = function()
		local default_model = "google/gemini-2.0-flash-001"
		local available_models = {
			"google/gemini-2.0-flash-001",
			"google/gemini-2.5-pro-preview-03-25",
			"anthropic/claude-3.7-sonnet",
			"anthropic/claude-3.5-sonnet",
			"openai/gpt-4o-mini",
		}
		local current_model = default_model

		local function select_model()
			vim.ui.select(available_models, {
				prompt = "Select  Model:",
			}, function(choice)
				if choice then
					current_model = choice
					vim.notify("Selected model: " .. current_model)
				end
			end)
		end

		require("codecompanion").setup({
			strategies = {
				chat = {
					adapter = "openrouter",
				},
				inline = {
					adapter = "openrouter",
				},
			},
			adapters = {
				openrouter = function()
					return require("codecompanion.adapters").extend("openai_compatible", {
						env = {
							url = "https://openrouter.ai/api",
							api_key = "OPENROUTER_API_KEY",
							chat_url = "/v1/chat/completions",
						},
						schema = {
							model = {
								default = current_model,
							},
						},
					})
				end,
			},
		})

		vim.keymap.set({ "n", "v" }, "<leader>ck", "<cmd>CodeCompanionActions<cr>", { noremap = true, silent = true })
		vim.keymap.set(
			{ "n", "v" },
			"<leader>a",
			"<cmd>CodeCompanionChat Toggle<cr>",
			{ noremap = true, silent = true }
		)
		vim.keymap.set("v", "ga", "<cmd>CodeCompanionChat Add<cr>", { noremap = true, silent = true })

		vim.keymap.set("n", "<leader>cs", select_model, { desc = "Select Gemini Model" })
		-- Expand 'cc' into 'CodeCompanion' in the command line
		vim.cmd([[cab cc CodeCompanion]])
	end,

	dependencies = {
		"nvim-lua/plenary.nvim",
		"nvim-treesitter/nvim-treesitter",
	},
}