Register Antigravity Gemini 4 Carbon and 3.8 Flash high IDs

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 For releases before 0.3.6, see the [GitHub releases](https://github.com/hawkff/pi-cliproxyapi-native/releases).
 
+## [0.3.9] - 2026-11-11
+
+- Antigravity's `gemini-4-carbon-high` and `gemini-3.8-flash-high` register with `google/gemini-4-carbon` and `google/gemini-3.8-flash` metadata, as `gemini-4-argon-high` does with `google/gemini-4-argon`. Before, discovery skipped both IDs. Pi 1.5.2 doesn't bundle Gemini 4 Carbon metadata. Until a Pi release does, `gemini-4-carbon-high` needs the metadata from Pi's pi.dev catalog, which Pi downloads only while Google has credentials in Pi, such as a stored login or `GEMINI_API_KEY`.
+- The extension targets Pi 1.5.2 and CLIProxyAPI 8.0.67.
+
 ## [0.3.8] - 2026-11-10
 
 - Model discovery skips an ID it cannot use and keeps the rest of the catalog. CLIProxyAPI accepts any text as a model alias, and one ID with a space, a non-ASCII character, or more than 256 characters made discovery fail. A catalog with no usable ID still fails, so it cannot replace a working model list.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pi-cliproxyapi-native",
-  "version": "0.3.8",
+  "version": "0.3.9",
   "description": "CLIProxyAPI chat discovery, image generation and editing, and video generation with Pi's native adapters",
   "publishConfig": {
     "access": "public"

src/catalog.ts

@@ -312,6 +312,8 @@ const metadataFallbacks = new Map([
   ["claude-opus-5-5-high", "anthropic/claude-opus-5-5"],
   ["claude-sonnet-5-5-high", "anthropic/claude-sonnet-5-5"],
   ["gemini-4-argon-high", "google/gemini-4-argon"],
+  ["gemini-4-carbon-high", "google/gemini-4-carbon"],
+  ["gemini-3.8-flash-high", "google/gemini-3.8-flash"],
 ]);
 
 export function mapCatalog(value: unknown, config: Config, known: readonly Model<Api>[]) {

src/claude-quota.ts

@@ -168,7 +168,7 @@ export async function fetchClaudeQuota(
           Authorization: "Bearer $TOKEN$",
           "Content-Type": "application/json",
           "anthropic-beta": "oauth-2025-04-20",
-          // CLIProxyAPI 8.0.64 presents this Claude Code version for OAuth accounts.
+          // CLIProxyAPI 8.0.67 presents this Claude Code version for OAuth accounts.
           "User-Agent": "claude-cli/2.1.321 (external, cli)",
         },
       });

test/provider.test.ts

@@ -226,11 +226,19 @@ test("auth prefixes keep separate entries and reuse metadata without guessing cu
 });
 
 test("Antigravity high IDs use exact metadata fallbacks without changing advertised IDs", () => {
-  const sources = builtinCatalog();
+  const bundled = builtinCatalog();
+  const argon = bundled.find((model) => model.provider === "google" && model.id === "gemini-4-argon");
+  assert.ok(argon);
+  // Pi 1.5.2 gets Gemini 4 Carbon metadata only from its pi.dev catalog.
+  const sources = metadataCatalog((provider) =>
+    provider === "google" ? [{ ...argon, id: "gemini-4-carbon", name: "Gemini 4 Carbon" }] : undefined,
+  );
   for (const [provider, canonical] of [
     ["anthropic", "claude-opus-5-5"],
     ["anthropic", "claude-sonnet-5-5"],
     ["google", "gemini-4-argon"],
+    ["google", "gemini-4-carbon"],
+    ["google", "gemini-3.8-flash"],
   ]) {
     const reference = sources.find((model) => model.provider === provider && model.id === canonical);
     assert.ok(reference);