feat: add Gemini CLI integration using @google/gemini-cli-core

packages/types/src/provider-settings.ts

@@ -12,6 +12,7 @@ import {
 	doubaoModels,
 	featherlessModels,
 	fireworksModels,
+	geminiCliModels,
 	geminiModels,
 	groqModels,
 	ioIntelligenceModels,
@@ -440,7 +441,7 @@ export const getApiProtocol = (provider: ProviderName | undefined, modelId?: str
 }
 
 export const MODELS_BY_PROVIDER: Record<
-	Exclude<ProviderName, "fake-ai" | "human-relay" | "gemini-cli" | "lmstudio" | "openai" | "ollama">,
+	Exclude<ProviderName, "fake-ai" | "human-relay" | "lmstudio" | "openai" | "ollama">,
 	{ id: ProviderName; label: string; models: string[] }
 > = {
 	anthropic: {
@@ -485,6 +486,11 @@ export const MODELS_BY_PROVIDER: Record<
 		label: "Google Gemini",
 		models: Object.keys(geminiModels),
 	},
+	"gemini-cli": {
+		id: "gemini-cli",
+		label: "Gemini CLI",
+		models: Object.keys(geminiCliModels),
+	},
 	groq: { id: "groq", label: "Groq", models: Object.keys(groqModels) },
 	"io-intelligence": {
 		id: "io-intelligence",

packages/types/src/providers/gemini-cli.ts

@@ -0,0 +1,207 @@
+import type { ModelInfo } from "../model.js"
+
+// Gemini CLI models - using the same models as regular Gemini
+// but accessed through the @google/gemini-cli-core library
+export type GeminiCliModelId = keyof typeof geminiCliModels
+
+export const geminiCliDefaultModelId: GeminiCliModelId = "gemini-2.0-flash-001"
+
+// Re-use the same model definitions as regular Gemini since they're the same models
+// just accessed through a different authentication mechanism (OAuth via CLI)
+export const geminiCliModels = {
+	"gemini-2.5-flash-preview-04-17:thinking": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0.15,
+		outputPrice: 3.5,
+		maxThinkingTokens: 24_576,
+		supportsReasoningBudget: true,
+		requiredReasoningBudget: true,
+	},
+	"gemini-2.5-flash-preview-04-17": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0.15,
+		outputPrice: 0.6,
+	},
+	"gemini-2.5-flash-preview-05-20:thinking": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 0.15,
+		outputPrice: 3.5,
+		cacheReadsPrice: 0.0375,
+		cacheWritesPrice: 1.0,
+		maxThinkingTokens: 24_576,
+		supportsReasoningBudget: true,
+		requiredReasoningBudget: true,
+	},
+	"gemini-2.5-flash-preview-05-20": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 0.15,
+		outputPrice: 0.6,
+		cacheReadsPrice: 0.0375,
+		cacheWritesPrice: 1.0,
+	},
+	"gemini-2.5-flash": {
+		maxTokens: 64_000,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
+		cacheReadsPrice: 0.075,
+		cacheWritesPrice: 1.0,
+		maxThinkingTokens: 24_576,
+		supportsReasoningBudget: true,
+	},
+	"gemini-2.5-pro-exp-03-25": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+	"gemini-2.5-pro-preview-03-25": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 2.5,
+		outputPrice: 15,
+		cacheReadsPrice: 0.625,
+		cacheWritesPrice: 4.5,
+		tiers: [
+			{
+				contextWindow: 200_000,
+				inputPrice: 1.25,
+				outputPrice: 10,
+				cacheReadsPrice: 0.31,
+			},
+			{
+				contextWindow: Infinity,
+				inputPrice: 2.5,
+				outputPrice: 15,
+				cacheReadsPrice: 0.625,
+			},
+		],
+	},
+	"gemini-2.5-pro": {
+		maxTokens: 64_000,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 2.5,
+		outputPrice: 15,
+		cacheReadsPrice: 0.625,
+		cacheWritesPrice: 4.5,
+		maxThinkingTokens: 32_768,
+		supportsReasoningBudget: true,
+		requiredReasoningBudget: true,
+		tiers: [
+			{
+				contextWindow: 200_000,
+				inputPrice: 1.25,
+				outputPrice: 10,
+				cacheReadsPrice: 0.31,
+			},
+			{
+				contextWindow: Infinity,
+				inputPrice: 2.5,
+				outputPrice: 15,
+				cacheReadsPrice: 0.625,
+			},
+		],
+	},
+	"gemini-2.0-flash-001": {
+		maxTokens: 8192,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 0.1,
+		outputPrice: 0.4,
+		cacheReadsPrice: 0.025,
+		cacheWritesPrice: 1.0,
+	},
+	"gemini-2.0-flash-lite-preview-02-05": {
+		maxTokens: 8192,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+	"gemini-2.0-pro-exp-02-05": {
+		maxTokens: 8192,
+		contextWindow: 2_097_152,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+	"gemini-2.0-flash-thinking-exp-01-21": {
+		maxTokens: 65_536,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+	"gemini-2.0-flash-thinking-exp-1219": {
+		maxTokens: 8192,
+		contextWindow: 32_767,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+	"gemini-2.0-flash-exp": {
+		maxTokens: 8192,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+	"gemini-1.5-flash-002": {
+		maxTokens: 8192,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		inputPrice: 0.15,
+		outputPrice: 0.6,
+		cacheReadsPrice: 0.0375,
+		cacheWritesPrice: 1.0,
+		tiers: [
+			{
+				contextWindow: 128_000,
+				inputPrice: 0.075,
+				outputPrice: 0.3,
+				cacheReadsPrice: 0.01875,
+			},
+			{
+				contextWindow: Infinity,
+				inputPrice: 0.15,
+				outputPrice: 0.6,
+				cacheReadsPrice: 0.0375,
+			},
+		],
+	},
+	"gemini-1.5-pro-002": {
+		maxTokens: 8192,
+		contextWindow: 2_097_152,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 0,
+		outputPrice: 0,
+	},
+} as const satisfies Record<string, ModelInfo>

packages/types/src/providers/index.ts

@@ -7,6 +7,7 @@ export * from "./deepseek.js"
 export * from "./doubao.js"
 export * from "./featherless.js"
 export * from "./fireworks.js"
+export * from "./gemini-cli.js"
 export * from "./gemini.js"
 export * from "./glama.js"
 export * from "./groq.js"

src/api/index.ts

@@ -14,6 +14,7 @@ import {
 	AnthropicVertexHandler,
 	OpenAiHandler,
 	LmStudioHandler,
+	GeminiCliHandler,
 	GeminiHandler,
 	OpenAiNativeHandler,
 	DeepSeekHandler,
@@ -102,6 +103,8 @@ export function buildApiHandler(configuration: ProviderSettings): ApiHandler {
 			return new LmStudioHandler(options)
 		case "gemini":
 			return new GeminiHandler(options)
+		case "gemini-cli":
+			return new GeminiCliHandler(options)
 		case "openai-native":
 			return new OpenAiNativeHandler(options)
 		case "deepseek":
@@ -149,7 +152,7 @@ export function buildApiHandler(configuration: ProviderSettings): ApiHandler {
 		case "featherless":
 			return new FeatherlessHandler(options)
 		default:
-			apiProvider satisfies "gemini-cli" | undefined
+			apiProvider satisfies undefined
 			return new AnthropicHandler(options)
 	}
 }