diff --git a/pkgs/by-name/pi/pi-coding-agent/package.nix b/pkgs/by-name/pi/pi-coding-agent/package.nix
index 1433c9a3dc9d..0adaeba4297f 100644
--- a/pkgs/by-name/pi/pi-coding-agent/package.nix
+++ b/pkgs/by-name/pi/pi-coding-agent/package.nix
@@ -2,6 +2,7 @@
   lib,
   buildNpmPackage,
   fetchFromGitHub,
+  fetchurl,
   nix-update-script,
   versionCheckHook,
   writableTmpDirAsHomeHook,
@@ -12,16 +13,34 @@
 }:
 buildNpmPackage (finalAttrs: {
   pname = "pi-coding-agent";
-  version = "0.80.10";
+  version = "0.81.0";
 
   src = fetchFromGitHub {
     owner = "earendil-works";
     repo = "pi";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-Vs/ndHYzFyfN4CjPV2zMYblLXe9IuM13UrPJI1VsZEQ=";
+    hash = "sha256-/TIYea6baa0vlz2G5wUv1aOknjEdo8zoo7eZI0Afjmk=";
   };
 
-  npmDepsHash = "sha256-XGvDNH+eilsgc0Z7ITqbitB/9RVc+WuDfCcr1pibNqk=";
+  npmDepsHash = "sha256-i0RwHPWBD06nh7FCM5F3R4kTOkH+7ulLFwIIDdH0vH0=";
+
+  # The provider model catalog (packages/ai/src/providers/data/) is generated by
+  # a network fetch (models.dev plus provider APIs) and is gitignored upstream,
+  # so it is absent from the source tarball. Restore it from the matching
+  # published @earendil-works/pi-ai npm package, which ships the hydrated catalog
+  # under dist/providers/data/. Bump this hash alongside version.
+  modelData = fetchurl {
+    url = "https://registry.npmjs.org/@earendil-works/pi-ai/-/pi-ai-${finalAttrs.version}.tgz";
+    hash = "sha256-YuCrwc/6xDHQkcvI6I7u/LTEKLx40nAuxSvPXe/h/1o=";
+  };
+
+  preConfigure = ''
+    mkdir -p packages/ai/src/providers/data
+    tar --extract --gzip --file=${finalAttrs.modelData} \
+      --directory=packages/ai/src/providers/data \
+      --strip-components=4 \
+      package/dist/providers/data
+  '';
 
   npmWorkspace = "packages/coding-agent";
 
@@ -34,8 +53,8 @@ buildNpmPackage (finalAttrs: {
 
   # Build workspace dependencies in order, then the coding-agent.
   # We invoke tsgo directly for workspace deps to skip pi-ai's
-  # generate-models script which requires network access
-  # (models.generated.ts is committed to the repo).
+  # generate-models script, which requires network access; the model
+  # catalog it would produce is supplied via modelData above.
   buildPhase = ''
     runHook preBuild
 
@@ -96,7 +115,12 @@ buildNpmPackage (finalAttrs: {
   versionCheckProgram = "${placeholder "out"}/bin/pi";
   versionCheckProgramArg = "--version";
 
-  passthru.updateScript = nix-update-script { };
+  passthru.updateScript = nix-update-script {
+    extraArgs = [
+      "--custom-dep"
+      "modelData"
+    ];
+  };
 
   meta = {
     description = "Coding agent CLI with read, bash, edit, write tools and session management";