diff --git a/.changeset/loud-lights-build.md b/.changeset/loud-lights-build.md
new file mode 100644
index 00000000000..4d06f9cafc0
--- /dev/null
+++ b/.changeset/loud-lights-build.md
@@ -0,0 +1,5 @@
+---
+"kilo-code": minor
+---
+
+Added gemini-3-flash-preview model
diff --git a/packages/types/src/providers/gemini.ts b/packages/types/src/providers/gemini.ts
index 0247ada952d..7df7aca9185 100644
--- a/packages/types/src/providers/gemini.ts
+++ b/packages/types/src/providers/gemini.ts
@@ -3,7 +3,7 @@ import type { ModelInfo } from "../model.js"
 // https://ai.google.dev/gemini-api/docs/models/gemini
 export type GeminiModelId = keyof typeof geminiModels
 
-export const geminiDefaultModelId: GeminiModelId = "gemini-3-pro-preview" // kilocode_change
+export const geminiDefaultModelId: GeminiModelId = "gemini-3-pro-preview"
 
 export const geminiModels = {
 	"gemini-3-pro-preview": {
@@ -31,6 +31,22 @@ export const geminiModels = {
 			},
 		],
 	},
+	"gemini-3-flash-preview": {
+		maxTokens: 65_536,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsNativeTools: true,
+		defaultToolProtocol: "native",
+		supportsPromptCache: true,
+		supportsReasoningEffort: ["minimal", "low", "medium", "high"],
+		reasoningEffort: "medium",
+		supportsTemperature: true,
+		defaultTemperature: 1,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
+		cacheReadsPrice: 0.075,
+		cacheWritesPrice: 1.0,
+	},
 	// 2.5 Pro models
 	"gemini-2.5-pro": {
 		maxTokens: 64_000,
diff --git a/packages/types/src/providers/vertex.ts b/packages/types/src/providers/vertex.ts
index 53b67418cf0..265d4d81fc2 100644
--- a/packages/types/src/providers/vertex.ts
+++ b/packages/types/src/providers/vertex.ts
@@ -31,6 +31,22 @@ export const vertexModels = {
 			},
 		],
 	},
+	"gemini-3-flash-preview": {
+		maxTokens: 65_536,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsNativeTools: true,
+		defaultToolProtocol: "native",
+		supportsPromptCache: true,
+		supportsReasoningEffort: ["minimal", "low", "medium", "high"],
+		reasoningEffort: "medium",
+		supportsTemperature: true,
+		defaultTemperature: 1,
+		inputPrice: 0.3,
+		outputPrice: 2.5,
+		cacheReadsPrice: 0.075,
+		cacheWritesPrice: 1.0,
+	},
 	"gemini-2.5-flash-preview-05-20:thinking": {
 		maxTokens: 65_535,
 		contextWindow: 1_048_576,