feat: Add support for OpenRouter

README.md

@@ -11,7 +11,7 @@ OpenCode is a Go-based CLI application that brings AI assistance to your termina
 ## Features
 
 - **Interactive TUI**: Built with [Bubble Tea](https://github.com/charmbracelet/bubbletea) for a smooth terminal experience
-- **Multiple AI Providers**: Support for OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock, Groq, and Azure OpenAI
+- **Multiple AI Providers**: Support for OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock, Groq, Azure OpenAI, and OpenRouter
 - **Session Management**: Save and manage multiple conversation sessions
 - **Tool Integration**: AI can execute commands, search files, and modify code
 - **Vim-like Editor**: Integrated editor with text input capabilities
@@ -97,8 +97,12 @@ You can configure OpenCode using environment variables:
       "disabled": false
     },
     "groq": {
-        "apiKey": "your-api-key",
-        "disabled": false
+      "apiKey": "your-api-key",
+      "disabled": false
+    },
+    "openrouter": {
+      "apiKey": "your-api-key",
+      "disabled": false
     }
   },
   "agents": {

cmd/schema/main.go

@@ -173,6 +173,7 @@ func generateSchema() map[string]any {
 		string(models.ProviderOpenAI),
 		string(models.ProviderGemini),
 		string(models.ProviderGROQ),
+		string(models.ProviderOpenRouter),
 		string(models.ProviderBedrock),
 		string(models.ProviderAzure),
 	}

internal/config/config.go

@@ -267,6 +267,15 @@ func setProviderDefaults() {
 		return
 	}
 
+	// OpenRouter configuration
+	if apiKey := os.Getenv("OPENROUTER_API_KEY"); apiKey != "" {
+		viper.SetDefault("providers.openrouter.apiKey", apiKey)
+		viper.SetDefault("agents.coder.model", models.OpenRouterClaude37Sonnet)
+		viper.SetDefault("agents.task.model", models.OpenRouterClaude37Sonnet)
+		viper.SetDefault("agents.title.model", models.OpenRouterClaude35Haiku)
+		return
+	}
+
 	// AWS Bedrock configuration
 	if hasAWSCredentials() {
 		viper.SetDefault("agents.coder.model", models.BedrockClaude37Sonnet)
@@ -527,6 +536,8 @@ func getProviderAPIKey(provider models.ModelProvider) string {
 		return os.Getenv("GROQ_API_KEY")
 	case models.ProviderAzure:
 		return os.Getenv("AZURE_OPENAI_API_KEY")
+	case models.ProviderOpenRouter:
+		return os.Getenv("OPENROUTER_API_KEY")
 	case models.ProviderBedrock:
 		if hasAWSCredentials() {
 			return "aws-credentials-available"
@@ -578,6 +589,34 @@ func setDefaultModelForAgent(agent AgentName) bool {
 		return true
 	}
 
+	if apiKey := os.Getenv("OPENROUTER_API_KEY"); apiKey != "" {
+		var model models.ModelID
+		maxTokens := int64(5000)
+		reasoningEffort := ""
+
+		switch agent {
+		case AgentTitle:
+			model = models.OpenRouterClaude35Haiku
+			maxTokens = 80
+		case AgentTask:
+			model = models.OpenRouterClaude37Sonnet
+		default:
+			model = models.OpenRouterClaude37Sonnet
+		}
+
+		// Check if model supports reasoning
+		if modelInfo, ok := models.SupportedModels[model]; ok && modelInfo.CanReason {
+			reasoningEffort = "medium"
+		}
+
+		cfg.Agents[agent] = Agent{
+			Model:           model,
+			MaxTokens:       maxTokens,
+			ReasoningEffort: reasoningEffort,
+		}
+		return true
+	}
+
 	if apiKey := os.Getenv("GEMINI_API_KEY"); apiKey != "" {
 		var model models.ModelID
 		maxTokens := int64(5000)

internal/llm/models/models.go

@@ -86,4 +86,5 @@ func init() {
 	maps.Copy(SupportedModels, GeminiModels)
 	maps.Copy(SupportedModels, GroqModels)
 	maps.Copy(SupportedModels, AzureModels)
+	maps.Copy(SupportedModels, OpenRouterModels)
 }

internal/llm/models/openrouter.go

@@ -0,0 +1,262 @@
+package models
+
+const (
+	ProviderOpenRouter ModelProvider = "openrouter"
+
+	OpenRouterGPT41          ModelID = "openrouter.gpt-4.1"
+	OpenRouterGPT41Mini      ModelID = "openrouter.gpt-4.1-mini"
+	OpenRouterGPT41Nano      ModelID = "openrouter.gpt-4.1-nano"
+	OpenRouterGPT45Preview   ModelID = "openrouter.gpt-4.5-preview"
+	OpenRouterGPT4o          ModelID = "openrouter.gpt-4o"
+	OpenRouterGPT4oMini      ModelID = "openrouter.gpt-4o-mini"
+	OpenRouterO1             ModelID = "openrouter.o1"
+	OpenRouterO1Pro          ModelID = "openrouter.o1-pro"
+	OpenRouterO1Mini         ModelID = "openrouter.o1-mini"
+	OpenRouterO3             ModelID = "openrouter.o3"
+	OpenRouterO3Mini         ModelID = "openrouter.o3-mini"
+	OpenRouterO4Mini         ModelID = "openrouter.o4-mini"
+	OpenRouterGemini25Flash  ModelID = "openrouter.gemini-2.5-flash"
+	OpenRouterGemini25       ModelID = "openrouter.gemini-2.5"
+	OpenRouterClaude35Sonnet ModelID = "openrouter.claude-3.5-sonnet"
+	OpenRouterClaude3Haiku   ModelID = "openrouter.claude-3-haiku"
+	OpenRouterClaude37Sonnet ModelID = "openrouter.claude-3.7-sonnet"
+	OpenRouterClaude35Haiku  ModelID = "openrouter.claude-3.5-haiku"
+	OpenRouterClaude3Opus    ModelID = "openrouter.claude-3-opus"
+)
+
+var OpenRouterModels = map[ModelID]Model{
+	OpenRouterGPT41: {
+		ID:                 OpenRouterGPT41,
+		Name:               "OpenRouter – GPT 4.1",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/gpt-4.1",
+		CostPer1MIn:        OpenAIModels[GPT41].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[GPT41].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[GPT41].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[GPT41].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[GPT41].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[GPT41].DefaultMaxTokens,
+	},
+	OpenRouterGPT41Mini: {
+		ID:                 OpenRouterGPT41Mini,
+		Name:               "OpenRouter – GPT 4.1 mini",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/gpt-4.1-mini",
+		CostPer1MIn:        OpenAIModels[GPT41Mini].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[GPT41Mini].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[GPT41Mini].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[GPT41Mini].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[GPT41Mini].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[GPT41Mini].DefaultMaxTokens,
+	},
+	OpenRouterGPT41Nano: {
+		ID:                 OpenRouterGPT41Nano,
+		Name:               "OpenRouter – GPT 4.1 nano",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/gpt-4.1-nano",
+		CostPer1MIn:        OpenAIModels[GPT41Nano].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[GPT41Nano].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[GPT41Nano].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[GPT41Nano].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[GPT41Nano].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[GPT41Nano].DefaultMaxTokens,
+	},
+	OpenRouterGPT45Preview: {
+		ID:                 OpenRouterGPT45Preview,
+		Name:               "OpenRouter – GPT 4.5 preview",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/gpt-4.5-preview",
+		CostPer1MIn:        OpenAIModels[GPT45Preview].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[GPT45Preview].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[GPT45Preview].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[GPT45Preview].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[GPT45Preview].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[GPT45Preview].DefaultMaxTokens,
+	},
+	OpenRouterGPT4o: {
+		ID:                 OpenRouterGPT4o,
+		Name:               "OpenRouter – GPT 4o",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/gpt-4o",
+		CostPer1MIn:        OpenAIModels[GPT4o].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[GPT4o].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[GPT4o].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[GPT4o].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[GPT4o].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[GPT4o].DefaultMaxTokens,
+	},
+	OpenRouterGPT4oMini: {
+		ID:                 OpenRouterGPT4oMini,
+		Name:               "OpenRouter – GPT 4o mini",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/gpt-4o-mini",
+		CostPer1MIn:        OpenAIModels[GPT4oMini].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[GPT4oMini].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[GPT4oMini].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[GPT4oMini].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[GPT4oMini].ContextWindow,
+	},
+	OpenRouterO1: {
+		ID:                 OpenRouterO1,
+		Name:               "OpenRouter – O1",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/o1",
+		CostPer1MIn:        OpenAIModels[O1].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[O1].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[O1].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[O1].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[O1].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[O1].DefaultMaxTokens,
+		CanReason:          OpenAIModels[O1].CanReason,
+	},
+	OpenRouterO1Pro: {
+		ID:                 OpenRouterO1Pro,
+		Name:               "OpenRouter – o1 pro",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/o1-pro",
+		CostPer1MIn:        OpenAIModels[O1Pro].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[O1Pro].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[O1Pro].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[O1Pro].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[O1Pro].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[O1Pro].DefaultMaxTokens,
+		CanReason:          OpenAIModels[O1Pro].CanReason,
+	},
+	OpenRouterO1Mini: {
+		ID:                 OpenRouterO1Mini,
+		Name:               "OpenRouter – o1 mini",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/o1-mini",
+		CostPer1MIn:        OpenAIModels[O1Mini].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[O1Mini].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[O1Mini].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[O1Mini].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[O1Mini].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[O1Mini].DefaultMaxTokens,
+		CanReason:          OpenAIModels[O1Mini].CanReason,
+	},
+	OpenRouterO3: {
+		ID:                 OpenRouterO3,
+		Name:               "OpenRouter – o3",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/o3",
+		CostPer1MIn:        OpenAIModels[O3].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[O3].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[O3].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[O3].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[O3].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[O3].DefaultMaxTokens,
+		CanReason:          OpenAIModels[O3].CanReason,
+	},
+	OpenRouterO3Mini: {
+		ID:                 OpenRouterO3Mini,
+		Name:               "OpenRouter – o3 mini",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/o3-mini-high",
+		CostPer1MIn:        OpenAIModels[O3Mini].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[O3Mini].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[O3Mini].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[O3Mini].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[O3Mini].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[O3Mini].DefaultMaxTokens,
+		CanReason:          OpenAIModels[O3Mini].CanReason,
+	},
+	OpenRouterO4Mini: {
+		ID:                 OpenRouterO4Mini,
+		Name:               "OpenRouter – o4 mini",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "openai/o4-mini-high",
+		CostPer1MIn:        OpenAIModels[O4Mini].CostPer1MIn,
+		CostPer1MInCached:  OpenAIModels[O4Mini].CostPer1MInCached,
+		CostPer1MOut:       OpenAIModels[O4Mini].CostPer1MOut,
+		CostPer1MOutCached: OpenAIModels[O4Mini].CostPer1MOutCached,
+		ContextWindow:      OpenAIModels[O4Mini].ContextWindow,
+		DefaultMaxTokens:   OpenAIModels[O4Mini].DefaultMaxTokens,
+		CanReason:          OpenAIModels[O4Mini].CanReason,
+	},
+	OpenRouterGemini25Flash: {
+		ID:                 OpenRouterGemini25Flash,
+		Name:               "OpenRouter – Gemini 2.5 Flash",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "google/gemini-2.5-flash-preview:thinking",
+		CostPer1MIn:        GeminiModels[Gemini25Flash].CostPer1MIn,
+		CostPer1MInCached:  GeminiModels[Gemini25Flash].CostPer1MInCached,
+		CostPer1MOut:       GeminiModels[Gemini25Flash].CostPer1MOut,
+		CostPer1MOutCached: GeminiModels[Gemini25Flash].CostPer1MOutCached,
+		ContextWindow:      GeminiModels[Gemini25Flash].ContextWindow,
+		DefaultMaxTokens:   GeminiModels[Gemini25Flash].DefaultMaxTokens,
+	},
+	OpenRouterGemini25: {
+		ID:                 OpenRouterGemini25,
+		Name:               "OpenRouter – Gemini 2.5 Pro",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "google/gemini-2.5-pro-preview-03-25",
+		CostPer1MIn:        GeminiModels[Gemini25].CostPer1MIn,
+		CostPer1MInCached:  GeminiModels[Gemini25].CostPer1MInCached,
+		CostPer1MOut:       GeminiModels[Gemini25].CostPer1MOut,
+		CostPer1MOutCached: GeminiModels[Gemini25].CostPer1MOutCached,
+		ContextWindow:      GeminiModels[Gemini25].ContextWindow,
+		DefaultMaxTokens:   GeminiModels[Gemini25].DefaultMaxTokens,
+	},
+	OpenRouterClaude35Sonnet: {
+		ID:                 OpenRouterClaude35Sonnet,
+		Name:               "OpenRouter – Claude 3.5 Sonnet",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "anthropic/claude-3.5-sonnet",
+		CostPer1MIn:        AnthropicModels[Claude35Sonnet].CostPer1MIn,
+		CostPer1MInCached:  AnthropicModels[Claude35Sonnet].CostPer1MInCached,
+		CostPer1MOut:       AnthropicModels[Claude35Sonnet].CostPer1MOut,
+		CostPer1MOutCached: AnthropicModels[Claude35Sonnet].CostPer1MOutCached,
+		ContextWindow:      AnthropicModels[Claude35Sonnet].ContextWindow,
+		DefaultMaxTokens:   AnthropicModels[Claude35Sonnet].DefaultMaxTokens,
+	},
+	OpenRouterClaude3Haiku: {
+		ID:                 OpenRouterClaude3Haiku,
+		Name:               "OpenRouter – Claude 3 Haiku",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "anthropic/claude-3-haiku",
+		CostPer1MIn:        AnthropicModels[Claude3Haiku].CostPer1MIn,
+		CostPer1MInCached:  AnthropicModels[Claude3Haiku].CostPer1MInCached,
+		CostPer1MOut:       AnthropicModels[Claude3Haiku].CostPer1MOut,
+		CostPer1MOutCached: AnthropicModels[Claude3Haiku].CostPer1MOutCached,
+		ContextWindow:      AnthropicModels[Claude3Haiku].ContextWindow,
+		DefaultMaxTokens:   AnthropicModels[Claude3Haiku].DefaultMaxTokens,
+	},
+	OpenRouterClaude37Sonnet: {
+		ID:                 OpenRouterClaude37Sonnet,
+		Name:               "OpenRouter – Claude 3.7 Sonnet",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "anthropic/claude-3.7-sonnet",
+		CostPer1MIn:        AnthropicModels[Claude37Sonnet].CostPer1MIn,
+		CostPer1MInCached:  AnthropicModels[Claude37Sonnet].CostPer1MInCached,
+		CostPer1MOut:       AnthropicModels[Claude37Sonnet].CostPer1MOut,
+		CostPer1MOutCached: AnthropicModels[Claude37Sonnet].CostPer1MOutCached,
+		ContextWindow:      AnthropicModels[Claude37Sonnet].ContextWindow,
+		DefaultMaxTokens:   AnthropicModels[Claude37Sonnet].DefaultMaxTokens,
+		CanReason:          AnthropicModels[Claude37Sonnet].CanReason,
+	},
+	OpenRouterClaude35Haiku: {
+		ID:                 OpenRouterClaude35Haiku,
+		Name:               "OpenRouter – Claude 3.5 Haiku",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "anthropic/claude-3.5-haiku",
+		CostPer1MIn:        AnthropicModels[Claude35Haiku].CostPer1MIn,
+		CostPer1MInCached:  AnthropicModels[Claude35Haiku].CostPer1MInCached,
+		CostPer1MOut:       AnthropicModels[Claude35Haiku].CostPer1MOut,
+		CostPer1MOutCached: AnthropicModels[Claude35Haiku].CostPer1MOutCached,
+		ContextWindow:      AnthropicModels[Claude35Haiku].ContextWindow,
+		DefaultMaxTokens:   AnthropicModels[Claude35Haiku].DefaultMaxTokens,
+	},
+	OpenRouterClaude3Opus: {
+		ID:                 OpenRouterClaude3Opus,
+		Name:               "OpenRouter – Claude 3 Opus",
+		Provider:           ProviderOpenRouter,
+		APIModel:           "anthropic/claude-3-opus",
+		CostPer1MIn:        AnthropicModels[Claude3Opus].CostPer1MIn,
+		CostPer1MInCached:  AnthropicModels[Claude3Opus].CostPer1MInCached,
+		CostPer1MOut:       AnthropicModels[Claude3Opus].CostPer1MOut,
+		CostPer1MOutCached: AnthropicModels[Claude3Opus].CostPer1MOutCached,
+		ContextWindow:      AnthropicModels[Claude3Opus].ContextWindow,
+		DefaultMaxTokens:   AnthropicModels[Claude3Opus].DefaultMaxTokens,
+	},
+}