Bugfix: Lingering error in image generation from image gen. models

oAI/Providers/OpenRouterModels.swift

@@ -160,6 +160,18 @@ struct OpenRouterChatResponse: Codable {
             let content: String?
             let toolCalls: [APIToolCall]?
             let images: [ImageOutput]?
+            // Images extracted from content[] blocks (e.g. GPT-5 Image response format)
+            let contentBlockImages: [ImageOutput]
+
+            private struct ContentBlock: Codable {
+                let type: String
+                let text: String?
+                let imageUrl: ImageOutput.ImageURL?
+                enum CodingKeys: String, CodingKey {
+                    case type, text
+                    case imageUrl = "image_url"
+                }
+            }
 
             enum CodingKeys: String, CodingKey {
                 case role
@@ -167,6 +179,27 @@ struct OpenRouterChatResponse: Codable {
                 case toolCalls = "tool_calls"
                 case images
             }
+
+            init(from decoder: Decoder) throws {
+                let c = try decoder.container(keyedBy: CodingKeys.self)
+                role = try c.decode(String.self, forKey: .role)
+                toolCalls = try c.decodeIfPresent([APIToolCall].self, forKey: .toolCalls)
+                images = try c.decodeIfPresent([ImageOutput].self, forKey: .images)
+                // content can be a plain String OR an array of content blocks
+                if let text = try? c.decodeIfPresent(String.self, forKey: .content) {
+                    content = text
+                    contentBlockImages = []
+                } else if let blocks = try? c.decodeIfPresent([ContentBlock].self, forKey: .content) {
+                    content = blocks.compactMap { $0.text }.joined().nonEmptyOrNil
+                    contentBlockImages = blocks.compactMap { block in
+                        guard block.type == "image_url", let url = block.imageUrl else { return nil }
+                        return ImageOutput(imageUrl: url)
+                    }
+                } else {
+                    content = nil
+                    contentBlockImages = []
+                }
+            }
         }
 
         enum CodingKeys: String, CodingKey {