diff --git a/packages/ai/scripts/generate-models.ts b/packages/ai/scripts/generate-models.ts
index 64469182..22be7ecb 100644
--- a/packages/ai/scripts/generate-models.ts
+++ b/packages/ai/scripts/generate-models.ts
@@ -700,6 +700,8 @@ async function fetchOpenRouterModels(): Promise<Model<any>[]> {
 			const cacheReadCost = roundCost(parseFloat(model.pricing?.input_cache_read || "0") * 1_000_000);
 			const cacheWriteCost = roundCost(parseFloat(model.pricing?.input_cache_write || "0") * 1_000_000);
 
+			const contextWindow = model.top_provider?.context_length || model.context_length || 4096;
+
 			const normalizedModel: Model<any> = {
 				id: modelKey,
 				name: model.name,
@@ -714,7 +716,7 @@ async function fetchOpenRouterModels(): Promise<Model<any>[]> {
 					cacheRead: cacheReadCost,
 					cacheWrite: cacheWriteCost,
 				},
-				contextWindow: model.context_length || 4096,
+				contextWindow,
 				maxTokens: model.top_provider?.max_completion_tokens || 4096,
 			};
 			models.push(normalizedModel);
diff --git a/packages/ai/src/providers/openrouter.models.ts b/packages/ai/src/providers/openrouter.models.ts
index b28ebd0c..5a1ed1ec 100644
--- a/packages/ai/src/providers/openrouter.models.ts
+++ b/packages/ai/src/providers/openrouter.models.ts
@@ -656,7 +656,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 128000,
 		maxTokens: 16000,
 	} satisfies Model<"openai-completions">,
 	"deepseek/deepseek-chat-v3-0324": {
@@ -710,7 +710,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 163840,
+		contextWindow: 64000,
 		maxTokens: 16000,
 	} satisfies Model<"openai-completions">,
 	"deepseek/deepseek-r1-0528": {
@@ -759,12 +759,12 @@ export const OPENROUTER_MODELS = {
 		reasoning: true,
 		input: ["text"],
 		cost: {
-			input: 0.2288,
-			output: 0.3432,
-			cacheRead: 0.02288,
+			input: 0.2145,
+			output: 0.32175,
+			cacheRead: 0.02145,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 128000,
 		maxTokens: 64000,
 	} satisfies Model<"openai-completions">,
 	"deepseek/deepseek-v3.2-exp": {
@@ -1018,7 +1018,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.2,
 			cacheWrite: 0.375,
 		},
-		contextWindow: 1048756,
+		contextWindow: 1048576,
 		maxTokens: 65536,
 	} satisfies Model<"openai-completions">,
 	"google/gemini-3.5-flash": {
@@ -1108,7 +1108,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 131072,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"google/gemma-4-31b-it": {
@@ -1343,7 +1343,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 65536,
 		maxTokens: 4096,
 	} satisfies Model<"openai-completions">,
 	"meta-llama/llama-4-maverick": {
@@ -1379,7 +1379,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 10000000,
+		contextWindow: 327680,
 		maxTokens: 16384,
 	} satisfies Model<"openai-completions">,
 	"minimax/minimax-m1": {
@@ -1451,7 +1451,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.05,
 			cacheWrite: 0,
 		},
-		contextWindow: 204800,
+		contextWindow: 196608,
 		maxTokens: 196608,
 	} satisfies Model<"openai-completions">,
 	"minimax/minimax-m2.7": {
@@ -1469,7 +1469,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 204800,
+		contextWindow: 196608,
 		maxTokens: 196608,
 	} satisfies Model<"openai-completions">,
 	"minimax/minimax-m3": {
@@ -1487,7 +1487,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.06,
 			cacheWrite: 0,
 		},
-		contextWindow: 1048576,
+		contextWindow: 1000000,
 		maxTokens: 131072,
 	} satisfies Model<"openai-completions">,
 	"mistralai/codestral-2508": {
@@ -1865,7 +1865,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.07,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 256000,
 		maxTokens: 4096,
 	} satisfies Model<"openai-completions">,
 	"moonshotai/kimi-k2.6": {
@@ -2027,7 +2027,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 1000000,
+		contextWindow: 262144,
 		maxTokens: 4096,
 	} satisfies Model<"openai-completions">,
 	"nvidia/nemotron-3-super-120b-a12b:free": {
@@ -2045,7 +2045,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 1000000,
+		contextWindow: 262144,
 		maxTokens: 262144,
 	} satisfies Model<"openai-completions">,
 	"nvidia/nemotron-3-ultra-550b-a55b": {
@@ -2063,7 +2063,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.1,
 			cacheWrite: 0,
 		},
-		contextWindow: 1000000,
+		contextWindow: 262144,
 		maxTokens: 16384,
 	} satisfies Model<"openai-completions">,
 	"nvidia/nemotron-3-ultra-550b-a55b:free": {
@@ -3359,7 +3359,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 32768,
 		maxTokens: 16384,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen-2.5-7b-instruct": {
@@ -3377,7 +3377,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 32768,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen-plus": {
@@ -3449,7 +3449,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131702,
+		contextWindow: 40960,
 		maxTokens: 40960,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-235b-a22b": {
@@ -3503,7 +3503,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 131072,
 		maxTokens: 4096,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-30b-a3b": {
@@ -3521,7 +3521,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 40960,
 		maxTokens: 16384,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-30b-a3b-instruct-2507": {
@@ -3539,7 +3539,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 128000,
 		maxTokens: 32000,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-30b-a3b-thinking-2507": {
@@ -3557,7 +3557,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 81920,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-32b": {
@@ -3575,7 +3575,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 131072,
+		contextWindow: 40960,
 		maxTokens: 16384,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-8b": {
@@ -3611,7 +3611,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 1048576,
+		contextWindow: 262144,
 		maxTokens: 65536,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-coder-30b-a3b-instruct": {
@@ -3701,7 +3701,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 1048576,
+		contextWindow: 262000,
 		maxTokens: 262000,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-max": {
@@ -3791,7 +3791,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 131072,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-vl-235b-a22b-instruct": {
@@ -3845,7 +3845,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 131072,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-vl-30b-a3b-thinking": {
@@ -3881,7 +3881,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 131072,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-vl-8b-instruct": {
@@ -3899,7 +3899,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 256000,
+		contextWindow: 131072,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3-vl-8b-thinking": {
@@ -3917,7 +3917,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0,
 			cacheWrite: 0,
 		},
-		contextWindow: 256000,
+		contextWindow: 131072,
 		maxTokens: 32768,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3.5-122b-a10b": {
@@ -3989,7 +3989,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.111,
 			cacheWrite: 0,
 		},
-		contextWindow: 256000,
+		contextWindow: 131072,
 		maxTokens: 4096,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3.5-9b": {
@@ -4079,7 +4079,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.15,
 			cacheWrite: 0,
 		},
-		contextWindow: 262144,
+		contextWindow: 262140,
 		maxTokens: 262140,
 	} satisfies Model<"openai-completions">,
 	"qwen/qwen3.6-35b-a3b": {
@@ -4475,7 +4475,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.028,
 			cacheWrite: 0,
 		},
-		contextWindow: 1048576,
+		contextWindow: 32000,
 		maxTokens: 4096,
 	} satisfies Model<"openai-completions">,
 	"xiaomi/mimo-v2.5-pro": {
@@ -4673,7 +4673,7 @@ export const OPENROUTER_MODELS = {
 			cacheRead: 0.1794,
 			cacheWrite: 0,
 		},
-		contextWindow: 202752,
+		contextWindow: 200000,
 		maxTokens: 128000,
 	} satisfies Model<"openai-completions">,
 	"z-ai/glm-5.2": {
@@ -4687,13 +4687,13 @@ export const OPENROUTER_MODELS = {
 		thinkingLevelMap: {"xhigh":"xhigh"},
 		input: ["text"],
 		cost: {
-			input: 0.532,
-			output: 1.672,
-			cacheRead: 0.0988,
+			input: 0.92,
+			output: 3,
+			cacheRead: 0.18,
 			cacheWrite: 0,
 		},
 		contextWindow: 1048576,
-		maxTokens: 131072,
+		maxTokens: 1048576,
 	} satisfies Model<"openai-completions">,
 	"z-ai/glm-5v-turbo": {
 		id: "z-ai/glm-5v-turbo",