diff --git a/apps/gateway/src/chat/chat.ts b/apps/gateway/src/chat/chat.ts
index d855c5d07c..516556e7a2 100644
--- a/apps/gateway/src/chat/chat.ts
+++ b/apps/gateway/src/chat/chat.ts
@@ -1503,7 +1503,9 @@ chat.openapi(completions, async (c) => {
 			usedProvider,
 			providerKey?.baseUrl || undefined,
 			usedModel,
-			usedProvider === "google-ai-studio" || usedProvider === "google-vertex"
+			usedProvider === "google-ai-studio" ||
+				usedProvider === "google-vertex" ||
+				usedProvider === "avalanche"
 				? usedToken
 				: undefined,
 			stream,
@@ -2009,7 +2011,8 @@ chat.openapi(completions, async (c) => {
 	if (
 		usedProvider === "google-ai-studio" ||
 		usedProvider === "google-vertex" ||
-		usedProvider === "obsidian"
+		usedProvider === "obsidian" ||
+		usedProvider === "avalanche"
 	) {
 		const { redisClient } = await import("@llmgateway/cache");
 		for (const message of messages) {
@@ -3851,7 +3854,8 @@ chat.openapi(completions, async (c) => {
 								if (
 									usedProvider === "google-ai-studio" ||
 									usedProvider === "google-vertex" ||
-									usedProvider === "obsidian"
+									usedProvider === "obsidian" ||
+									usedProvider === "avalanche"
 								) {
 									const parts = data.candidates?.[0]?.content?.parts || [];
 									for (const part of parts) {
@@ -3878,7 +3882,8 @@ chat.openapi(completions, async (c) => {
 								} else if (
 									usedProvider === "google-ai-studio" ||
 									usedProvider === "google-vertex" ||
-									usedProvider === "obsidian"
+									usedProvider === "obsidian" ||
+									usedProvider === "avalanche"
 								) {
 									// For Google, count when grounding metadata is present
 									if (data.candidates?.[0]?.groundingMetadata) {
@@ -3974,6 +3979,7 @@ chat.openapi(completions, async (c) => {
 									case "google-ai-studio":
 									case "google-vertex":
 									case "obsidian":
+									case "avalanche":
 										// Preserve original Google finish reason for logging
 										if (data.promptFeedback?.blockReason) {
 											finishReason = data.promptFeedback.blockReason;
@@ -4372,7 +4378,8 @@ chat.openapi(completions, async (c) => {
 										const providerExcludesImageInput =
 											usedProvider === "google-ai-studio" ||
 											usedProvider === "google-vertex" ||
-											usedProvider === "obsidian";
+											usedProvider === "obsidian" ||
+											usedProvider === "avalanche";
 										const imageInputAdj = providerExcludesImageInput
 											? inputImageCount * 560
 											: 0;
@@ -5806,7 +5813,8 @@ chat.openapi(completions, async (c) => {
 	if (
 		usedProvider === "google-ai-studio" ||
 		usedProvider === "google-vertex" ||
-		usedProvider === "obsidian"
+		usedProvider === "obsidian" ||
+		usedProvider === "avalanche"
 	) {
 		logger.debug("Google model response parsed", {
 			usedProvider,
@@ -5984,7 +5992,8 @@ chat.openapi(completions, async (c) => {
 	const isGoogleContentFilter =
 		(usedProvider === "google-ai-studio" ||
 			usedProvider === "google-vertex" ||
-			usedProvider === "obsidian") &&
+			usedProvider === "obsidian" ||
+			usedProvider === "avalanche") &&
 		(finishReason === "SAFETY" ||
 			finishReason === "PROHIBITED_CONTENT" ||
 			finishReason === "RECITATION" ||
diff --git a/apps/gateway/src/chat/tools/extract-content.ts b/apps/gateway/src/chat/tools/extract-content.ts
index d85cf6a75d..459af695be 100644
--- a/apps/gateway/src/chat/tools/extract-content.ts
+++ b/apps/gateway/src/chat/tools/extract-content.ts
@@ -7,7 +7,8 @@ export function extractContent(data: any, provider: Provider): string {
 	switch (provider) {
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			const parts = data.candidates?.[0]?.content?.parts || [];
 			const contentParts = parts.filter((part: any) => !part.thought);
 			return contentParts.map((part: any) => part.text).join("") || "";
diff --git a/apps/gateway/src/chat/tools/extract-images.ts b/apps/gateway/src/chat/tools/extract-images.ts
index 1b15f6d071..7908d250cd 100644
--- a/apps/gateway/src/chat/tools/extract-images.ts
+++ b/apps/gateway/src/chat/tools/extract-images.ts
@@ -12,7 +12,8 @@ export function extractImages(data: any, provider: Provider): ImageObject[] {
 	switch (provider) {
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			const parts = data.candidates?.[0]?.content?.parts || [];
 			const imageParts = parts.filter((part: any) => part.inlineData);
 			return imageParts.map(
diff --git a/apps/gateway/src/chat/tools/extract-reasoning.ts b/apps/gateway/src/chat/tools/extract-reasoning.ts
index a74cc17b88..8d833dc3cc 100644
--- a/apps/gateway/src/chat/tools/extract-reasoning.ts
+++ b/apps/gateway/src/chat/tools/extract-reasoning.ts
@@ -19,7 +19,8 @@ export function extractReasoning(data: any, provider: Provider): string {
 		}
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			const parts = data.candidates?.[0]?.content?.parts || [];
 			const reasoningParts = parts.filter((part: any) => part.thought);
 			return reasoningParts.map((part: any) => part.text).join("") || "";
diff --git a/apps/gateway/src/chat/tools/extract-token-usage.ts b/apps/gateway/src/chat/tools/extract-token-usage.ts
index 911b09cc00..4fa5368836 100644
--- a/apps/gateway/src/chat/tools/extract-token-usage.ts
+++ b/apps/gateway/src/chat/tools/extract-token-usage.ts
@@ -50,6 +50,7 @@ export function extractTokenUsage(
 		case "google-ai-studio":
 		case "google-vertex":
 		case "obsidian":
+		case "avalanche":
 			if (data.usageMetadata) {
 				promptTokens = data.usageMetadata.promptTokenCount ?? null;
 				let rawCandidates = data.usageMetadata.candidatesTokenCount ?? null;
diff --git a/apps/gateway/src/chat/tools/extract-tool-calls.ts b/apps/gateway/src/chat/tools/extract-tool-calls.ts
index e1ad2f3763..ff4ea29c3b 100644
--- a/apps/gateway/src/chat/tools/extract-tool-calls.ts
+++ b/apps/gateway/src/chat/tools/extract-tool-calls.ts
@@ -40,7 +40,8 @@ export function extractToolCalls(data: any, provider: Provider): any[] | null {
 			return null;
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			// Google AI Studio tool calls in streaming
 			// Include thoughtSignature if present (required for Gemini 3 multi-turn conversations)
 			// Note: Redis caching of thought_signature happens in transform-streaming-to-openai.ts
diff --git a/apps/gateway/src/chat/tools/parse-provider-response.ts b/apps/gateway/src/chat/tools/parse-provider-response.ts
index a3cea77d3b..51d0ca9331 100644
--- a/apps/gateway/src/chat/tools/parse-provider-response.ts
+++ b/apps/gateway/src/chat/tools/parse-provider-response.ts
@@ -181,7 +181,8 @@ export function parseProviderResponse(
 		}
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			// Check if response is missing candidates - treat as content filter
 			if (!json.candidates || json.candidates.length === 0) {
 				// Only log warning if there's no blockReason explaining why
diff --git a/apps/gateway/src/chat/tools/transform-response-to-openai.ts b/apps/gateway/src/chat/tools/transform-response-to-openai.ts
index 6da614d7ae..8078eb2782 100644
--- a/apps/gateway/src/chat/tools/transform-response-to-openai.ts
+++ b/apps/gateway/src/chat/tools/transform-response-to-openai.ts
@@ -87,7 +87,8 @@ export function transformResponseToOpenai(
 	switch (usedProvider) {
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			transformedResponse = {
 				id: `chatcmpl-${Date.now()}`,
 				object: "chat.completion",
diff --git a/apps/gateway/src/chat/tools/transform-streaming-to-openai.ts b/apps/gateway/src/chat/tools/transform-streaming-to-openai.ts
index 6df339f12c..ac1b302959 100644
--- a/apps/gateway/src/chat/tools/transform-streaming-to-openai.ts
+++ b/apps/gateway/src/chat/tools/transform-streaming-to-openai.ts
@@ -251,7 +251,8 @@ export function transformStreamingToOpenai(
 
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			const mapFinishReason = (
 				finishReason?: string,
 				hasFunctionCalls?: boolean,
diff --git a/apps/gateway/src/lib/costs.ts b/apps/gateway/src/lib/costs.ts
index 328bb0d77a..5e26fb1163 100644
--- a/apps/gateway/src/lib/costs.ts
+++ b/apps/gateway/src/lib/costs.ts
@@ -312,7 +312,8 @@ export async function calculateCosts(
 	const isGoogleProvider =
 		provider === "google-ai-studio" ||
 		provider === "google-vertex" ||
-		provider === "obsidian";
+		provider === "obsidian" ||
+		provider === "avalanche";
 	const totalOutputTokens = isGoogleProvider
 		? calculatedCompletionTokens
 		: calculatedCompletionTokens + (reasoningTokens || 0);
@@ -384,7 +385,8 @@ export async function calculateCosts(
 			imageInputTokens &&
 			(provider === "google-ai-studio" ||
 				provider === "google-vertex" ||
-				provider === "obsidian")
+				provider === "obsidian" ||
+				provider === "avalanche")
 				? (calculatedPromptTokens || 0) + imageInputTokens
 				: calculatedPromptTokens,
 		completionTokens: calculatedCompletionTokens,
diff --git a/apps/gateway/src/lib/logs.ts b/apps/gateway/src/lib/logs.ts
index 827426d5e2..37a5ed1800 100644
--- a/apps/gateway/src/lib/logs.ts
+++ b/apps/gateway/src/lib/logs.ts
@@ -21,7 +21,8 @@ export function isExpectedUnknownFinishReason(
 	if (
 		(provider === "google-ai-studio" ||
 			provider === "google-vertex" ||
-			provider === "obsidian") &&
+			provider === "obsidian" ||
+			provider === "avalanche") &&
 		finishReason === "OTHER"
 	) {
 		return true;
@@ -74,6 +75,7 @@ export function getUnifiedFinishReason(
 		case "google-ai-studio":
 		case "google-vertex":
 		case "obsidian":
+		case "avalanche":
 			// Google finish reasons (original format, not mapped to OpenAI)
 			if (finishReason === "STOP") {
 				return UnifiedFinishReason.COMPLETED;
diff --git a/packages/actions/src/get-provider-endpoint.ts b/packages/actions/src/get-provider-endpoint.ts
index a84e745010..5b0236bcbc 100644
--- a/packages/actions/src/get-provider-endpoint.ts
+++ b/packages/actions/src/get-provider-endpoint.ts
@@ -69,6 +69,14 @@ export function getProviderEndpoint(
 					);
 				}
 				break;
+			case "avalanche":
+				url = getProviderEnvValue("avalanche", "baseUrl", configIndex);
+				if (!url) {
+					throw new Error(
+						"Avalanche provider requires LLM_AVALANCHE_BASE_URL environment variable",
+					);
+				}
+				break;
 			case "inference.net":
 				url = "https://api.inference.net";
 				break;
@@ -198,6 +206,38 @@ export function getProviderEndpoint(
 				? `${baseEndpoint}?${queryParams.join("&")}`
 				: baseEndpoint;
 		}
+		case "avalanche": {
+			const endpoint = stream ? "streamGenerateContent" : "generateContent";
+			const model = modelName || "gemini-3-pro-image-preview";
+
+			const projectId = getProviderEnvValue(
+				"avalanche",
+				"project",
+				configIndex,
+			);
+
+			const region =
+				getProviderEnvValue("avalanche", "region", configIndex, "global") ||
+				"global";
+
+			if (!projectId) {
+				throw new Error(
+					"Avalanche provider requires LLM_AVALANCHE_PROJECT environment variable",
+				);
+			}
+
+			const baseEndpoint = `${url}/v1/projects/${projectId}/locations/${region}/publishers/google/models/${model}:${endpoint}`;
+			const queryParams = [];
+			if (token) {
+				queryParams.push(`key=${token}`);
+			}
+			if (stream) {
+				queryParams.push("alt=sse");
+			}
+			return queryParams.length > 0
+				? `${baseEndpoint}?${queryParams.join("&")}`
+				: baseEndpoint;
+		}
 		case "google-vertex": {
 			const endpoint = stream ? "streamGenerateContent" : "generateContent";
 			const model = modelName || "gemini-2.5-flash-lite";
diff --git a/packages/actions/src/get-provider-headers.ts b/packages/actions/src/get-provider-headers.ts
index 3db1acb1d0..757d00632e 100644
--- a/packages/actions/src/get-provider-headers.ts
+++ b/packages/actions/src/get-provider-headers.ts
@@ -29,6 +29,7 @@ export function getProviderHeaders(
 		}
 		case "google-ai-studio":
 		case "google-vertex":
+		case "avalanche":
 			return {};
 		case "obsidian":
 			return {
diff --git a/packages/actions/src/prepare-request-body.ts b/packages/actions/src/prepare-request-body.ts
index 264b45e192..8d5fa52673 100644
--- a/packages/actions/src/prepare-request-body.ts
+++ b/packages/actions/src/prepare-request-body.ts
@@ -1340,7 +1340,8 @@ export async function prepareRequestBody(
 		}
 		case "google-ai-studio":
 		case "google-vertex":
-		case "obsidian": {
+		case "obsidian":
+		case "avalanche": {
 			delete requestBody.model; // Not used in body
 			delete requestBody.stream; // Stream is handled via URL parameter
 			delete requestBody.messages; // Not used in body for Google providers
diff --git a/packages/models/src/models/google.ts b/packages/models/src/models/google.ts
index 7b62b43c2b..4df8d24faf 100644
--- a/packages/models/src/models/google.ts
+++ b/packages/models/src/models/google.ts
@@ -562,6 +562,43 @@ export const googleModels = [
 				jsonOutput: true,
 				jsonOutputSchema: true,
 			},
+			{
+				test: "skip",
+				providerId: "avalanche",
+				modelName: "gemini-3-pro-preview",
+				inputPrice: 2 / 1e6,
+				outputPrice: 12 / 1e6,
+				cachedInputPrice: 0.2 / 1e6,
+				pricingTiers: [
+					{
+						name: "Up to 200K",
+						upToTokens: 200000,
+						inputPrice: 2 / 1e6,
+						outputPrice: 12 / 1e6,
+						cachedInputPrice: 0.2 / 1e6,
+					},
+					{
+						name: "Over 200K",
+						upToTokens: Infinity,
+						inputPrice: 4 / 1e6,
+						outputPrice: 18 / 1e6,
+						cachedInputPrice: 0.4 / 1e6,
+					},
+				],
+				requestPrice: 0,
+				discount: 0.2,
+				contextSize: 1048576,
+				maxOutput: 65536,
+				reasoning: true,
+				reasoningMaxTokens: true,
+				streaming: true,
+				vision: true,
+				tools: true,
+				webSearch: true,
+				webSearchPrice: 0.014,
+				jsonOutput: true,
+				jsonOutputSchema: true,
+			},
 		],
 	},
 	{
@@ -642,6 +679,43 @@ export const googleModels = [
 				jsonOutput: true,
 				jsonOutputSchema: true,
 			},
+			{
+				test: "skip",
+				providerId: "avalanche",
+				modelName: "gemini-3.1-pro-preview",
+				inputPrice: 2 / 1e6,
+				outputPrice: 12 / 1e6,
+				cachedInputPrice: 0.2 / 1e6,
+				pricingTiers: [
+					{
+						name: "Up to 200K",
+						upToTokens: 200000,
+						inputPrice: 2 / 1e6,
+						outputPrice: 12 / 1e6,
+						cachedInputPrice: 0.2 / 1e6,
+					},
+					{
+						name: "Over 200K",
+						upToTokens: Infinity,
+						inputPrice: 4 / 1e6,
+						outputPrice: 18 / 1e6,
+						cachedInputPrice: 0.4 / 1e6,
+					},
+				],
+				requestPrice: 0,
+				discount: 0.2,
+				contextSize: 1048576,
+				maxOutput: 65536,
+				reasoning: true,
+				reasoningMaxTokens: true,
+				streaming: true,
+				vision: true,
+				tools: true,
+				webSearch: true,
+				webSearchPrice: 0.014,
+				jsonOutput: true,
+				jsonOutputSchema: true,
+			},
 		],
 	},
 	{
@@ -690,6 +764,27 @@ export const googleModels = [
 				jsonOutput: true,
 				jsonOutputSchema: true,
 			},
+			{
+				test: "skip",
+				providerId: "avalanche",
+				modelName: "gemini-3-flash-preview",
+				inputPrice: 0.5 / 1e6,
+				outputPrice: 3 / 1e6,
+				cachedInputPrice: 0.05 / 1e6,
+				requestPrice: 0,
+				discount: 0.2,
+				contextSize: 1048576,
+				maxOutput: 65535,
+				reasoning: true,
+				reasoningMaxTokens: true,
+				streaming: true,
+				vision: true,
+				tools: true,
+				webSearch: true,
+				webSearchPrice: 0.014,
+				jsonOutput: true,
+				jsonOutputSchema: true,
+			},
 		],
 	},
 	{
@@ -877,6 +972,25 @@ export const googleModels = [
 				jsonOutput: true,
 				jsonOutputSchema: true,
 			},
+			{
+				test: "skip",
+				providerId: "avalanche",
+				modelName: "gemini-3-pro-image-preview",
+				inputPrice: 2 / 1e6,
+				outputPrice: 12 / 1e6,
+				cachedInputPrice: 0.2 / 1e6,
+				imageInputPrice: 2 / 1e6,
+				imageOutputPrice: 120 / 1e6,
+				requestPrice: 0,
+				discount: 0.2,
+				contextSize: 65536,
+				maxOutput: 32768,
+				streaming: true,
+				vision: true,
+				tools: false,
+				jsonOutput: true,
+				jsonOutputSchema: true,
+			},
 		],
 	},
 	{
diff --git a/packages/models/src/providers.ts b/packages/models/src/providers.ts
index 9c04407b9b..84544edb59 100644
--- a/packages/models/src/providers.ts
+++ b/packages/models/src/providers.ts
@@ -132,6 +132,28 @@ export const providers = [
 		color: "#1a1a1a",
 		website: null,
 		announcement: null,
+		priority: 1.5,
+	},
+	{
+		id: "avalanche",
+		name: "Avalanche",
+		description: "Avalanche - Google Vertex-compatible LLM provider.",
+		env: {
+			required: {
+				apiKey: "LLM_AVALANCHE_API_KEY",
+				baseUrl: "LLM_AVALANCHE_BASE_URL",
+				project: "LLM_AVALANCHE_PROJECT",
+			},
+			optional: {
+				region: "LLM_AVALANCHE_REGION",
+			},
+		},
+		streaming: true,
+		cancellation: true,
+		color: "#1a1a1a",
+		website: null,
+		announcement: null,
+		priority: 1.3,
 	},
 	{
 		id: "groq",