diff --git a/packages/ai/scripts/generate-models.ts b/packages/ai/scripts/generate-models.ts
index 911063e3..206a0afd 100644
--- a/packages/ai/scripts/generate-models.ts
+++ b/packages/ai/scripts/generate-models.ts
@@ -642,7 +642,7 @@ async function generateModels() {
 		opus45.cost.cacheWrite = 6.25;
 	}
 
-	// Temporary Opus 4.6 overrides until upstream model metadata is corrected.
+	// Temporary overrides until upstream model metadata is corrected.
 	for (const candidate of allModels) {
 		if (candidate.provider === "amazon-bedrock" && candidate.id.includes("anthropic.claude-opus-4-6-v1")) {
 			candidate.cost.cacheRead = 0.5;
@@ -652,6 +652,10 @@ async function generateModels() {
 		if ((candidate.provider === "anthropic" || candidate.provider === "opencode") && candidate.id === "claude-opus-4-6") {
 			candidate.contextWindow = 200000;
 		}
+		// opencode lists Claude Sonnet 4/4.5 with 1M context, actual limit is 200K
+		if (candidate.provider === "opencode" && (candidate.id === "claude-sonnet-4-5" || candidate.id === "claude-sonnet-4")) {
+			candidate.contextWindow = 200000;
+		}
 	}
 
 	// Add missing EU Opus 4.6 profile
diff --git a/packages/ai/src/models.generated.ts b/packages/ai/src/models.generated.ts
index 347389e7..8f92ed48 100644
--- a/packages/ai/src/models.generated.ts
+++ b/packages/ai/src/models.generated.ts
@@ -5231,7 +5231,7 @@ export const MODELS = {
 				cacheRead: 0.3,
 				cacheWrite: 3.75,
 			},
-			contextWindow: 1000000,
+			contextWindow: 200000,
 			maxTokens: 64000,
 		} satisfies Model<"anthropic-messages">,
 		"claude-sonnet-4-5": {
@@ -5248,7 +5248,7 @@ export const MODELS = {
 				cacheRead: 0.3,
 				cacheWrite: 3.75,
 			},
-			contextWindow: 1000000,
+			contextWindow: 200000,
 			maxTokens: 64000,
 		} satisfies Model<"anthropic-messages">,
 		"gemini-3-flash": {
@@ -7336,9 +7336,9 @@ export const MODELS = {
 			reasoning: true,
 			input: ["text", "image"],
 			cost: {
-				input: 0.44999999999999996,
-				output: 2.25,
-				cacheRead: 0.075,
+				input: 0.3,
+				output: 1.5,
+				cacheRead: 0.049999999999999996,
 				cacheWrite: 0,
 			},
 			contextWindow: 262144,