From 2eab6354a4e3374bc4707d91921559f78700a1c9 Mon Sep 17 00:00:00 2001
From: 285729101 <285729101@qq.com>
Date: Tue, 17 Feb 2026 03:22:20 +0800
Subject: [PATCH] fix: remove deprecated Gemini preview image models

Remove `gemini-2.0-flash-preview-image-generation` and
`gemini-2.5-flash-image-preview` which are being retired by Google.

Changes:
- SDK: Remove both models from GeminiModel type union and GeminiModels
  registry
- Tests: Remove deprecated model from smoke test blacklist
- Templates: Update next-image template to use the GA model
  `gemini-2.5-flash-image` instead of the deprecated preview variant

Ref: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/models/gemini/2-0-flash

Fixes #634

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 .../sdk/ts/src/supported-models/chat/gemini.ts     | 14 --------------
 .../provider-smoke/gemini-generate-text.test.ts    |  1 -
 .../next-image/src/app/api/edit-image/google.ts    |  2 +-
 .../src/app/api/generate-image/google.ts           |  2 +-
 4 files changed, 2 insertions(+), 17 deletions(-)

diff --git a/packages/sdk/ts/src/supported-models/chat/gemini.ts b/packages/sdk/ts/src/supported-models/chat/gemini.ts
index 53197b7f5..92073a22d 100644
--- a/packages/sdk/ts/src/supported-models/chat/gemini.ts
+++ b/packages/sdk/ts/src/supported-models/chat/gemini.ts
@@ -10,13 +10,11 @@ export type GeminiModel =
   | 'gemini-2.0-flash-lite-001'
   | 'gemini-2.0-flash-lite-preview'
   | 'gemini-2.0-flash-lite-preview-02-05'
-  | 'gemini-2.0-flash-preview-image-generation'
   | 'gemini-2.0-flash-thinking-exp'
   | 'gemini-2.0-flash-thinking-exp-01-21'
   | 'gemini-2.0-flash-thinking-exp-1219'
   | 'gemini-2.5-flash'
   | 'gemini-2.5-flash-image'
-  | 'gemini-2.5-flash-image-preview'
   | 'gemini-2.5-flash-lite'
   | 'gemini-2.5-flash-lite-preview-06-17'
   | 'gemini-2.5-flash-lite-preview-09-2025'
@@ -78,12 +76,6 @@ export const GeminiModels: SupportedModel[] = [
     output_cost_per_token: 3e-7,
     provider: 'Gemini',
   },
-  {
-    model_id: 'gemini-2.0-flash-preview-image-generation',
-    input_cost_per_token: 1e-7,
-    output_cost_per_token: 4e-7,
-    provider: 'Gemini',
-  },
   {
     model_id: 'gemini-2.0-flash-thinking-exp',
     input_cost_per_token: 1e-7,
@@ -114,12 +106,6 @@ export const GeminiModels: SupportedModel[] = [
     output_cost_per_token: 0.0000025,
     provider: 'Gemini',
   },
-  {
-    model_id: 'gemini-2.5-flash-image-preview',
-    input_cost_per_token: 3e-7,
-    output_cost_per_token: 0.0000025,
-    provider: 'Gemini',
-  },
   {
     model_id: 'gemini-2.5-flash-lite',
     input_cost_per_token: 1e-7,
diff --git a/packages/tests/provider-smoke/gemini-generate-text.test.ts b/packages/tests/provider-smoke/gemini-generate-text.test.ts
index da2339df1..8867a7704 100644
--- a/packages/tests/provider-smoke/gemini-generate-text.test.ts
+++ b/packages/tests/provider-smoke/gemini-generate-text.test.ts
@@ -15,7 +15,6 @@ import {
 beforeAll(assertEnv);
 
 export const BLACKLISTED_MODELS = new Set([
-  'gemini-2.0-flash-preview-image-generation',
   'veo-3.0-fast-generate',
   'gemini-2.0-flash-exp',
   'gemini-2.0-flash-thinking-exp-1219',
diff --git a/templates/next-image/src/app/api/edit-image/google.ts b/templates/next-image/src/app/api/edit-image/google.ts
index 527c4879d..616f53a3f 100644
--- a/templates/next-image/src/app/api/edit-image/google.ts
+++ b/templates/next-image/src/app/api/edit-image/google.ts
@@ -28,7 +28,7 @@ export async function handleGoogleEdit(
     ];
 
     const result = await generateText({
-      model: google('gemini-2.5-flash-image-preview'),
+      model: google('gemini-2.5-flash-image'),
       prompt: [
         {
           role: 'user',
diff --git a/templates/next-image/src/app/api/generate-image/google.ts b/templates/next-image/src/app/api/generate-image/google.ts
index 4fcdffb3a..1a1710be9 100644
--- a/templates/next-image/src/app/api/generate-image/google.ts
+++ b/templates/next-image/src/app/api/generate-image/google.ts
@@ -12,7 +12,7 @@ import { ERROR_MESSAGES } from '@/lib/constants';
 export async function handleGoogleGenerate(prompt: string): Promise<Response> {
   try {
     const result = await generateText({
-      model: google('gemini-2.5-flash-image-preview'),
+      model: google('gemini-2.5-flash-image'),
       prompt,
     });