From 0da464bbca96e1c1684cdbe3d05ca5c026859c18 Mon Sep 17 00:00:00 2001
From: ProfSynapse <jrosenbaum9689@gmail.com>
Date: Fri, 24 Apr 2026 06:37:12 -0400
Subject: [PATCH] feat(openrouter): add gpt-5.4-image-2 image model
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New OpenAI multimodal image-generation model on OpenRouter. Wired into
image adapter only (precedent: gpt-5-image, flux-*, dall-e-* also live
here, not in the chat ModelSpec registry).

- ImageModel union: add 'gpt-5.4-image-2'
- OpenRouterImageAdapter: supportedModels, modelMap, pricing table,
  listModels ModelInfo entry
- Token pricing verbatim from OpenRouter API: $8/M input, $15/M output
- Per-image rate mirrored from gpt-5-image ($0.08); OpenRouter publishes
  no per-image field for this model — verify before release

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 .../openrouter/OpenRouterImageAdapter.ts      | 22 +++++++++++++++++++
 src/services/llm/types/ImageTypes.ts          |  1 +
 2 files changed, 23 insertions(+)

diff --git a/src/services/llm/adapters/openrouter/OpenRouterImageAdapter.ts b/src/services/llm/adapters/openrouter/OpenRouterImageAdapter.ts
index 4dbe37cef..3de8adb4a 100644
--- a/src/services/llm/adapters/openrouter/OpenRouterImageAdapter.ts
+++ b/src/services/llm/adapters/openrouter/OpenRouterImageAdapter.ts
@@ -78,6 +78,7 @@ export class OpenRouterImageAdapter extends BaseImageAdapter {
     'gemini-3-pro-image-preview' as ImageModel,
     'gemini-3.1-flash-image-preview' as ImageModel,
     'gpt-5-image' as ImageModel,
+    'gpt-5.4-image-2' as ImageModel,
     'flux-2-pro' as ImageModel,
     'flux-2-flex' as ImageModel
   ];
@@ -94,6 +95,7 @@ export class OpenRouterImageAdapter extends BaseImageAdapter {
     'gemini-3-pro-image-preview': 'google/gemini-3-pro-image-preview',
     'gemini-3.1-flash-image-preview': 'google/gemini-3.1-flash-image-preview',
     'gpt-5-image': 'openai/gpt-5-image',
+    'gpt-5.4-image-2': 'openai/gpt-5.4-image-2',
     // Add other image-capable models as they become available
     'flux-2-pro': 'black-forest-labs/flux.2-pro',
     'flux-2-flex': 'black-forest-labs/flux.2-flex'
@@ -369,6 +371,7 @@ export class OpenRouterImageAdapter extends BaseImageAdapter {
       'gemini-3-pro-image-preview': 0.08,
       'gemini-3.1-flash-image-preview': 0.04,
       'gpt-5-image': 0.08,
+      'gpt-5.4-image-2': 0.08,
       'flux-2-pro': 0.05,
       'flux-2-flex': 0.03
     };
@@ -466,6 +469,25 @@ export class OpenRouterImageAdapter extends BaseImageAdapter {
           lastUpdated: '2026-02-26'
         }
       },
+      {
+        id: 'gpt-5.4-image-2',
+        name: 'GPT-5.4 Image 2 (via OpenRouter)',
+        contextWindow: 272000,
+        maxOutputTokens: 128000,
+        supportsJSON: false,
+        supportsImages: true,
+        supportsFunctions: false,
+        supportsStreaming: false,
+        supportsThinking: false,
+        supportsImageGeneration: true,
+        pricing: {
+          inputPerMillion: 8,
+          outputPerMillion: 15,
+          imageGeneration: 0.08,
+          currency: 'USD',
+          lastUpdated: '2026-04-24'
+        }
+      },
       {
         id: 'flux-2-pro',
         name: 'FLUX.2 Pro (via OpenRouter)',
diff --git a/src/services/llm/types/ImageTypes.ts b/src/services/llm/types/ImageTypes.ts
index 1dba949b4..91457da8e 100644
--- a/src/services/llm/types/ImageTypes.ts
+++ b/src/services/llm/types/ImageTypes.ts
@@ -244,6 +244,7 @@ export type ImageModel =
   | 'gemini-3-pro-image-preview' // Google Nano Banana Pro (advanced)
   | 'gemini-3.1-flash-image-preview' // Google Nano Banana 2 (flash speed, pro quality)
   | 'gpt-5-image'                    // OpenAI GPT-5 Image (OpenRouter only)
+  | 'gpt-5.4-image-2'                // OpenAI GPT-5.4 Image 2 (OpenRouter only)
   | 'flux-2-pro'                     // Black Forest Labs FLUX.2 Pro (OpenRouter only)
   | 'flux-2-flex';                   // Black Forest Labs FLUX.2 Flex (OpenRouter only)