diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index 91735c36..6fff07ba 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Fixed built-in `kimi-coding` model generation to attach `User-Agent: KimiCLI/1.5` to all generated Kimi models, overriding the Anthropic SDK default UA so direct Kimi Coding requests use the provider's expected client identity ([#3586](https://github.com/badlogic/pi-mono/issues/3586))
+
 ## [0.69.0] - 2026-04-22
 
 ### Breaking Changes
diff --git a/packages/ai/scripts/generate-models.ts b/packages/ai/scripts/generate-models.ts
index 29ea138d..990f8254 100644
--- a/packages/ai/scripts/generate-models.ts
+++ b/packages/ai/scripts/generate-models.ts
@@ -53,6 +53,10 @@ const COPILOT_STATIC_HEADERS = {
 	"Copilot-Integration-Id": "vscode-chat",
 } as const;
 
+const KIMI_STATIC_HEADERS = {
+	"User-Agent": "KimiCLI/1.5",
+} as const;
+
 const AI_GATEWAY_MODELS_URL = "https://ai-gateway.vercel.sh/v1";
 const AI_GATEWAY_BASE_URL = "https://ai-gateway.vercel.sh";
 const ZAI_TOOL_STREAM_UNSUPPORTED_MODELS = new Set(["glm-4.5", "glm-4.5-air", "glm-4.5-flash", "glm-4.5v"]);
@@ -665,6 +669,7 @@ async function loadModelsDevData(): Promise<Model<any>[]> {
 					provider: "kimi-coding",
 					// Kimi For Coding's Anthropic-compatible API - SDK appends /v1/messages
 					baseUrl: "https://api.kimi.com/coding",
+					headers: { ...KIMI_STATIC_HEADERS },
 					reasoning: m.reasoning === true,
 					input: m.modalities?.input?.includes("image") ? ["text", "image"] : ["text"],
 					cost: {
diff --git a/packages/ai/src/models.generated.ts b/packages/ai/src/models.generated.ts
index 196e73eb..aa790498 100644
--- a/packages/ai/src/models.generated.ts
+++ b/packages/ai/src/models.generated.ts
@@ -5120,6 +5120,7 @@ export const MODELS = {
 			api: "anthropic-messages",
 			provider: "kimi-coding",
 			baseUrl: "https://api.kimi.com/coding",
+			headers: {"User-Agent":"KimiCLI/1.5"},
 			reasoning: true,
 			input: ["text", "image"],
 			cost: {
@@ -5137,6 +5138,7 @@ export const MODELS = {
 			api: "anthropic-messages",
 			provider: "kimi-coding",
 			baseUrl: "https://api.kimi.com/coding",
+			headers: {"User-Agent":"KimiCLI/1.5"},
 			reasoning: true,
 			input: ["text", "image"],
 			cost: {
@@ -5154,6 +5156,7 @@ export const MODELS = {
 			api: "anthropic-messages",
 			provider: "kimi-coding",
 			baseUrl: "https://api.kimi.com/coding",
+			headers: {"User-Agent":"KimiCLI/1.5"},
 			reasoning: true,
 			input: ["text"],
 			cost: {