From 79bfddd37c1aba449d8e77ba56e3987a9448f1c7 Mon Sep 17 00:00:00 2001
From: Teknium <127238744+teknium1@users.noreply.github.com>
Date: Tue, 2 Jun 2026 12:49:19 -0700
Subject: [PATCH] fix(models): restore gemini-3-flash-preview to Gemini OAuth
 picker (#37606)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

#37046 swapped gemini-3-flash-preview -> gemini-3.5-flash in the
google-gemini-cli (OAuth/Code Assist) picker on the premise that the
preview slug was renamed. It wasn't. Per gemini-cli's models.ts, Code
Assist serves two distinct flash slugs with different access gates:
gemini-3-flash-preview (PREVIEW_GEMINI_FLASH_MODEL — what subscription/
free-tier OAuth users reach) and gemini-3.5-flash
(DEFAULT_GEMINI_3_5_FLASH_MODEL — GA-channel-gated). The model string is
passed verbatim into the {project, model, ...} envelope sent to
cloudcode-pa.googleapis.com, so non-GA users got a hard error on every
prompt because gemini-3.5-flash 404s for them.

Offer both slugs in the OAuth picker (matching gemini-cli's own /model
list) so non-GA users can select the preview flash that works. The
gemini (API-key), OpenRouter, and Nous lists are untouched —
google/gemini-3.5-flash is a real live model on those surfaces.
---
 hermes_cli/models.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hermes_cli/models.py b/hermes_cli/models.py
index 99f9d462c..f8f541c89 100644
--- a/hermes_cli/models.py
+++ b/hermes_cli/models.py
@@ -241,6 +241,12 @@ _PROVIDER_MODELS: dict[str, list[str]] = {
     "google-gemini-cli": [
         "gemini-3.1-pro-preview",
         "gemini-3-pro-preview",
+        # Code Assist serves two flash slugs with different access gates
+        # (gemini-cli models.ts): gemini-3-flash-preview is the preview flash
+        # that subscription/free-tier OAuth users actually reach, while
+        # gemini-3.5-flash is GA-channel-gated. Offer both so non-GA users
+        # aren't stuck with a slug cloudcode-pa 404s for them.
+        "gemini-3-flash-preview",
         "gemini-3.5-flash",
     ],
     "zai": [