feat: add litellm model alias support

README.md

@@ -925,7 +925,7 @@ This design also enables **multi-agent support** with flexible provider selectio
 #### 📋 All Supported Vendors
 
 | Vendor              | `model` Prefix    | Default API Base                                    | Protocol  | API Key                                                          |
-| ------------------- | ----------------- | --------------------------------------------------- | --------- | ---------------------------------------------------------------- |
+| ------------------- | ----------------- |-----------------------------------------------------| --------- | ---------------------------------------------------------------- |
 | **OpenAI**          | `openai/`         | `https://api.openai.com/v1`                         | OpenAI    | [Get Key](https://platform.openai.com)                           |
 | **Anthropic**       | `anthropic/`      | `https://api.anthropic.com/v1`                      | Anthropic | [Get Key](https://console.anthropic.com)                         |
 | **智谱 AI (GLM)**   | `zhipu/`          | `https://open.bigmodel.cn/api/paas/v4`              | OpenAI    | [Get Key](https://open.bigmodel.cn/usercenter/proj-mgmt/apikeys) |
@@ -937,6 +937,7 @@ This design also enables **multi-agent support** with flexible provider selectio
 | **NVIDIA**          | `nvidia/`         | `https://integrate.api.nvidia.com/v1`               | OpenAI    | [Get Key](https://build.nvidia.com)                              |
 | **Ollama**          | `ollama/`         | `http://localhost:11434/v1`                         | OpenAI    | Local (no key needed)                                            |
 | **OpenRouter**      | `openrouter/`     | `https://openrouter.ai/api/v1`                      | OpenAI    | [Get Key](https://openrouter.ai/keys)                            |
+| **LiteLLM Proxy**   | `litellm/`        | `http://localhost:4000/v1                           | OpenAI    | Your LiteLLM proxy key                                            |
 | **VLLM**            | `vllm/`           | `http://localhost:8000/v1`                          | OpenAI    | Local                                                            |
 | **Cerebras**        | `cerebras/`       | `https://api.cerebras.ai/v1`                        | OpenAI    | [Get Key](https://cerebras.ai)                                   |
 | **火山引擎**        | `volcengine/`     | `https://ark.cn-beijing.volces.com/api/v3`          | OpenAI    | [Get Key](https://console.volcengine.com)                        |
@@ -1038,6 +1039,19 @@ This design also enables **multi-agent support** with flexible provider selectio
 }
 ```
 
+**LiteLLM Proxy**
+
+```json
+{
+  "model_name": "lite-gpt4",
+  "model": "litellm/lite-gpt4",
+  "api_base": "http://localhost:4000/v1",
+  "api_key": "sk-..."
+}
+```
+
+PicoClaw strips only the outer `litellm/` prefix before sending the request, so proxy aliases like `litellm/lite-gpt4` send `lite-gpt4`, while `litellm/openai/gpt-4o` sends `openai/gpt-4o`.
+
 #### Load Balancing
 
 Configure multiple endpoints for the same model name—PicoClaw will automatically round-robin between them:

pkg/providers/factory_provider.go

@@ -53,7 +53,7 @@ func ExtractProtocol(model string) (protocol, modelID string) {
 
 // CreateProviderFromConfig creates a provider based on the ModelConfig.
 // It uses the protocol prefix in the Model field to determine which provider to create.
-// Supported protocols: openai, anthropic, antigravity, claude-cli, codex-cli, github-copilot
+// Supported protocols: openai, litellm, anthropic, antigravity, claude-cli, codex-cli, github-copilot
 // Returns the provider, the model ID (without protocol prefix), and any error.
 func CreateProviderFromConfig(cfg *config.ModelConfig) (LLMProvider, string, error) {
 	if cfg == nil {
@@ -92,7 +92,7 @@ func CreateProviderFromConfig(cfg *config.ModelConfig) (LLMProvider, string, err
 			cfg.RequestTimeout,
 		), modelID, nil
 
-	case "openrouter", "groq", "zhipu", "gemini", "nvidia",
+	case "litellm", "openrouter", "groq", "zhipu", "gemini", "nvidia",
 		"ollama", "moonshot", "shengsuanyun", "deepseek", "cerebras",
 		"volcengine", "vllm", "qwen", "mistral":
 		// All other OpenAI-compatible HTTP providers

pkg/providers/factory_provider_test.go

@@ -135,6 +135,26 @@ func TestCreateProviderFromConfig_DefaultAPIBase(t *testing.T) {
 	}
 }
 
+func TestCreateProviderFromConfig_LiteLLM(t *testing.T) {
+	cfg := &config.ModelConfig{
+		ModelName: "test-litellm",
+		Model:     "litellm/my-proxy-alias",
+		APIKey:    "test-key",
+		APIBase:   "http://localhost:4000/v1",
+	}
+
+	provider, modelID, err := CreateProviderFromConfig(cfg)
+	if err != nil {
+		t.Fatalf("CreateProviderFromConfig() error = %v", err)
+	}
+	if provider == nil {
+		t.Fatal("CreateProviderFromConfig() returned nil provider")
+	}
+	if modelID != "my-proxy-alias" {
+		t.Errorf("modelID = %q, want %q", modelID, "my-proxy-alias")
+	}
+}
+
 func TestCreateProviderFromConfig_Anthropic(t *testing.T) {
 	cfg := &config.ModelConfig{
 		ModelName: "test-anthropic",

pkg/providers/openai_compat/provider.go

@@ -325,7 +325,7 @@ func normalizeModel(model, apiBase string) string {
 
 	prefix := strings.ToLower(before)
 	switch prefix {
-	case "moonshot", "nvidia", "groq", "ollama", "deepseek", "google", "openrouter", "zhipu", "mistral":
+	case "litellm", "moonshot", "nvidia", "groq", "ollama", "deepseek", "google", "openrouter", "zhipu", "mistral":
 		return after
 	default:
 		return model

pkg/providers/openai_compat/provider_test.go

@@ -256,6 +256,11 @@ func TestProviderChat_StripsGroqAndOllamaPrefixes(t *testing.T) {
 		input     string
 		wantModel string
 	}{
+		{
+			name:      "strips litellm prefix and preserves proxy model name",
+			input:     "litellm/my-proxy-alias",
+			wantModel: "my-proxy-alias",
+		},
 		{
 			name:      "strips groq prefix and keeps nested model",
 			input:     "groq/openai/gpt-oss-120b",