diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7bb8b9b..acf0000 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,11 +11,45 @@ on:
       - "v*"
 
 jobs:
-  publish:
+  verify-tag:
     runs-on: ubuntu-latest
-    environment: npm-publish
-    permissions:
-      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Verify tag matches package version
+        if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          PKG_VERSION=$(jq -r '.version' package.json)
+          TAG_VERSION=${GITHUB_REF#refs/tags/}
+          if [ "v${PKG_VERSION}" != "${TAG_VERSION}" ]; then
+            echo "Tag (${TAG_VERSION}) does not match package.json version (v${PKG_VERSION})."
+            exit 1
+          fi
+
+  build:
+    needs: verify-tag
+    name: ${{ matrix.name }}
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - name: macOS arm64
+            runner: macos-14
+            binary: letta-macos-arm64
+          - name: macOS x64
+            runner: macos-13
+            binary: letta-macos-x64
+          - name: Linux x64
+            runner: ubuntu-24.04
+            binary: letta-linux-x64
+          - name: Linux arm64
+            runner: ubuntu-24.04-arm
+            binary: letta-linux-arm64
+          - name: Windows x64
+            runner: windows-latest
+            binary: letta-windows-x64.exe
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -28,23 +62,72 @@ jobs:
       - name: Install dependencies
         run: bun install
 
-      - name: Verify tag matches package version
-        if: startsWith(github.ref, 'refs/tags/')
-        run: |
-          PKG_VERSION=$(jq -r '.version' package.json)
-          TAG_VERSION=${GITHUB_REF#refs/tags/}
-          if [ "v${PKG_VERSION}" != "${TAG_VERSION}" ]; then
-            echo "Tag (${TAG_VERSION}) does not match package.json version (v${PKG_VERSION})."
-            exit 1
-          fi
-
       - name: Build binary
         run: bun run build
 
+      - name: Rename binary
+        shell: bash
+        run: |
+          if [[ "${{ matrix.runner }}" == windows* ]]; then
+            mv bin/letta.exe bin/${{ matrix.binary }}
+          else
+            mv bin/letta bin/${{ matrix.binary }}
+          fi
+
+      - name: Upload binary artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.binary }}
+          path: bin/${{ matrix.binary }}
+          if-no-files-found: error
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    environment: npm-publish
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: 1.3.0
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Download all binary artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: bin-artifacts
+
+      - name: Move binaries to bin directory
+        run: |
+          mkdir -p bin
+          mv bin-artifacts/*/* bin/
+          ls -lah bin/
+          chmod +x bin/letta-*
+
+      - name: Smoke test - help
+        run: bun bin/letta.js --help
+
+      - name: Smoke test - version
+        run: bun bin/letta.js --version || echo "Version flag not implemented yet"
+
       - name: Integration smoke test (real API)
         env:
           LETTA_API_KEY: ${{ secrets.LETTA_API_KEY }}
-        run: ./bin/letta --prompt "ping" --tools "" --permission-mode plan
+        run: bun bin/letta.js --prompt "ping" --tools "" --permission-mode plan
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ github.ref_name }}
+          files: bin/letta-*
+          fail_on_unmatched_files: true
 
       - name: Publish to npm
         env:
diff --git a/.gitignore b/.gitignore
index 675d805..3527d9e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@ node_modules
 bun.lockb
 dist
 bin/
+!bin/letta.js
 .DS_Store
 
 # Logs
diff --git a/bin/letta.js b/bin/letta.js
new file mode 100755
index 0000000..538b2e1
--- /dev/null
+++ b/bin/letta.js
@@ -0,0 +1,86 @@
+#!/usr/bin/env node
+
+/**
+ * Unified entry point for the Letta CLI.
+ * Detects the platform and spawns the appropriate compiled binary.
+ *
+ * Note: Uses #!/usr/bin/env node (not bun) for maximum compatibility
+ * when users install via npm/npx. Bun can still run this file.
+ */
+
+import path from "path";
+import { fileURLToPath } from "url";
+import { spawn } from "child_process";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const { platform, arch } = process;
+
+// Map platform/arch to binary name
+let binaryName = null;
+switch (platform) {
+  case "linux":
+    switch (arch) {
+      case "x64":
+        binaryName = "letta-linux-x64";
+        break;
+      case "arm64":
+        binaryName = "letta-linux-arm64";
+        break;
+    }
+    break;
+  case "darwin":
+    switch (arch) {
+      case "x64":
+        binaryName = "letta-macos-x64";
+        break;
+      case "arm64":
+        binaryName = "letta-macos-arm64";
+        break;
+    }
+    break;
+  case "win32":
+    switch (arch) {
+      case "x64":
+        binaryName = "letta-windows-x64.exe";
+        break;
+    }
+    break;
+}
+
+if (!binaryName) {
+  console.error(`Error: Unsupported platform: ${platform} ${arch}`);
+  console.error("Supported platforms:");
+  console.error("  - macOS: arm64, x64");
+  console.error("  - Linux: arm64, x64");
+  console.error("  - Windows: x64");
+  process.exit(1);
+}
+
+const binaryPath = path.join(__dirname, binaryName);
+
+// Spawn the binary with all arguments
+const child = spawn(binaryPath, process.argv.slice(2), {
+  stdio: "inherit",
+  env: process.env,
+});
+
+// Forward signals to child process
+function forwardSignal(signal) {
+  process.on(signal, () => {
+    child.kill(signal);
+  });
+}
+
+forwardSignal("SIGINT");
+forwardSignal("SIGTERM");
+
+// Exit with the same code as the child process
+child.on("exit", (code, signal) => {
+  if (signal) {
+    process.kill(process.pid, signal);
+  } else {
+    process.exit(code || 0);
+  }
+});
diff --git a/package.json b/package.json
index c82793f..7c3b37a 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "Letta Code is a CLI tool for interacting with stateful Letta agents from the terminal.",
   "type": "module",
   "bin": {
-    "letta": "bin/letta"
+    "letta": "bin/letta.js"
   },
   "files": [
     "LICENSE",
@@ -42,7 +42,7 @@
     "fix": "bunx --bun @biomejs/biome@2.2.5 check --write src",
     "dev:ui": "bun --loader:.md=text --loader:.mdx=text --loader:.txt=text run src/index.ts",
     "build": "bun build src/index.ts --compile --loader:.md=text --loader:.mdx=text --loader:.txt=text --outfile bin/letta",
-    "prepublishOnly": "bun run build",
+    "prepublishOnly": "echo 'Binaries should be built in CI. Run bun run build for local development.'",
     "postinstall": "bun scripts/postinstall-patches.js || true"
   },
   "lint-staged": {