feat: Add Gemini 3 Pro Preview to Vertex

Author: hannesrudolph

packages/types/src/providers/vertex.ts

@@ -6,6 +6,30 @@ export type VertexModelId = keyof typeof vertexModels
 export const vertexDefaultModelId: VertexModelId = "claude-sonnet-4-5@20250929"
 
 export const vertexModels = {
+	"gemini-3-pro-preview": {
+		maxTokens: 65_536,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: true,
+		supportsReasoningEffort: ["low", "high"],
+		reasoningEffort: "low",
+		supportsTemperature: true,
+		defaultTemperature: 1,
+		inputPrice: 4.0,
+		outputPrice: 18.0,
+		tiers: [
+			{
+				contextWindow: 200_000,
+				inputPrice: 2.0,
+				outputPrice: 12.0,
+			},
+			{
+				contextWindow: Infinity,
+				inputPrice: 4.0,
+				outputPrice: 18.0,
+			},
+		],
+	},
 	"gemini-2.5-flash-preview-05-20:thinking": {
 		maxTokens: 65_535,
 		contextWindow: 1_048_576,