feat(models): add support for GPT-5 and Claude 4.5 models

Add configurations for new AI models including GPT-5, GPT-5 Mini, GPT-5 Nano,
Claude Sonnet 4.5, and Claude Haiku 4.5 across background, content, options,
and utils scripts. This expands the extension's AI capabilities with updated
model options for improved summarization.

Author: lassestilvang

background.ts

@@ -712,17 +712,17 @@ async function tryOpenAI(
           {
             role: 'user',
             content: `IMPORTANT: Provide ONLY a <ul> list with 5 <li> items and no introduction, titles, or extra text. Format like this:
- 
+
 <ul>
 <li>[First bullet content]</li>
 <li>[Second bullet content]</li>
 <li>[Third bullet content]</li>
 <li>[Fourth bullet content]</li>
 <li>[Fifth bullet content]</li>
 </ul>
- 
+
 Provide the summary in the following language: ${language}
- 
+
 Content to summarize:
 ${content.substring(0, 12000)}`,
           },
@@ -778,17 +778,17 @@ async function tryGeminiAPI(
               parts: [
                 {
                   text: `Provide the summary in the following language: ${language}
- 
+
 IMPORTANT: Provide ONLY a <ul> list with 5 <li> items and no introduction, titles, or extra text. Format like this:
- 
+
 <ul>
 <li>[First bullet content]</li>
 <li>[Second bullet content]</li>
 <li>[Third bullet content]</li>
 <li>[Fourth bullet content]</li>
 <li>[Fifth bullet content]</li>
 </ul>
- 
+
 Content to summarize:
 ${content.substring(0, 12000)}`,
                 },
@@ -859,15 +859,15 @@ async function tryAnthropicAPI(
           {
             role: 'user',
             content: `IMPORTANT: Provide ONLY a <ul> list with 5 <li> items and no introduction, titles, or extra text. Format like this:
- 
+
 <ul>
 <li>[First bullet content]</li>
 <li>[Second bullet content]</li>
 <li>[Third bullet content]</li>
 <li>[Fourth bullet content]</li>
 <li>[Fifth bullet content]</li>
 </ul>
- 
+
 Content to summarize:
 ${content.substring(0, 12000)}`,
           },

content.ts

@@ -113,13 +113,18 @@ async function checkChromeBuiltinSupport(): Promise<boolean> {
       'gpt-4',
       'gpt-4-turbo',
       'gpt-4o',
+      'gpt-5',
+      'gpt-5-mini',
+      'gpt-5-nano',
       'gemini-2.5-pro',
       'gemini-2.5-flash',
       'gemini-2.0-flash-exp',
       'claude-3-haiku',
       'claude-3-sonnet',
       'claude-3-opus',
       'claude-3.5-sonnet',
+      'claude-sonnet-4.5',
+      'claude-haiku-4.5',
     ];
 
     for (const model of alternativeModels) {
@@ -298,6 +303,24 @@ async function checkChromeBuiltinSupport(): Promise<boolean> {
         name: 'GPT-4o',
         cost: 0.005,
       },
+      'gpt-5': {
+        provider: 'openai',
+        modelId: 'gpt-5',
+        name: 'GPT-5',
+        cost: 0.00125,
+      },
+      'gpt-5-mini': {
+        provider: 'openai',
+        modelId: 'gpt-5-mini',
+        name: 'GPT-5 Mini',
+        cost: 0.00025,
+      },
+      'gpt-5-nano': {
+        provider: 'openai',
+        modelId: 'gpt-5-nano',
+        name: 'GPT-5 Nano',
+        cost: 0.00005,
+      },
       'gemini-2.5-pro': {
         provider: 'gemini',
         modelId: 'gemini-2.5-pro',
@@ -340,6 +363,18 @@ async function checkChromeBuiltinSupport(): Promise<boolean> {
         name: 'Claude 3.5 Sonnet',
         cost: 0.003,
       },
+      'claude-sonnet-4.5': {
+        provider: 'anthropic',
+        modelId: 'claude-sonnet-4.5',
+        name: 'Claude Sonnet 4.5',
+        cost: 0.003,
+      },
+      'claude-haiku-4.5': {
+        provider: 'anthropic',
+        modelId: 'claude-haiku-4.5',
+        name: 'Claude Haiku 4.5',
+        cost: 0.001,
+      },
     };
     return models[model];
   }
@@ -847,13 +882,18 @@ async function checkChromeBuiltinSupport(): Promise<boolean> {
         { value: 'gpt-4', label: 'GPT-4' },
         { value: 'gpt-4-turbo', label: 'GPT-4 Turbo' },
         { value: 'gpt-4o', label: 'GPT-4o' },
+        { value: 'gpt-5', label: 'GPT-5' },
+        { value: 'gpt-5-mini', label: 'GPT-5 Mini' },
+        { value: 'gpt-5-nano', label: 'GPT-5 Nano' },
         { value: 'gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
         { value: 'gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
         { value: 'gemini-2.0-flash-exp', label: 'Gemini 2.0 Flash' },
         { value: 'claude-3-haiku', label: 'Claude 3 Haiku' },
         { value: 'claude-3-sonnet', label: 'Claude 3 Sonnet' },
         { value: 'claude-3-opus', label: 'Claude 3 Opus' },
         { value: 'claude-3.5-sonnet', label: 'Claude 3.5 Sonnet' },
+        { value: 'claude-sonnet-4.5', label: 'Claude Sonnet 4.5' },
+        { value: 'claude-haiku-4.5', label: 'Claude Haiku 4.5' },
       ];
 
       // Get API keys to check availability

options.ts

@@ -287,6 +287,24 @@ function optionsGetModelConfig(model: string): ModelConfig | undefined {
       name: 'GPT-4o',
       cost: 0.005,
     },
+    'gpt-5': {
+      provider: 'openai',
+      modelId: 'gpt-5',
+      name: 'GPT-5',
+      cost: 0.00125,
+    },
+    'gpt-5-mini': {
+      provider: 'openai',
+      modelId: 'gpt-5-mini',
+      name: 'GPT-5 Mini',
+      cost: 0.00025,
+    },
+    'gpt-5-nano': {
+      provider: 'openai',
+      modelId: 'gpt-5-nano',
+      name: 'GPT-5 Nano',
+      cost: 0.00005,
+    },
     'gemini-2.5-pro': {
       provider: 'gemini',
       modelId: 'gemini-2.5-pro',
@@ -329,6 +347,18 @@ function optionsGetModelConfig(model: string): ModelConfig | undefined {
       name: 'Claude 3.5 Sonnet',
       cost: 0.003,
     },
+    'claude-4-5-sonnet': {
+      provider: 'anthropic',
+      modelId: 'claude-4-5-sonnet',
+      name: 'Sonnet 4.5',
+      cost: 0.003,
+    },
+    'claude-4-5-haiku': {
+      provider: 'anthropic',
+      modelId: 'claude-4-5-haiku',
+      name: 'Haiku 4.5',
+      cost: 0.001,
+    },
   };
   return models[model];
 }

utils.ts

@@ -155,6 +155,24 @@ export function getModelConfig(model: string): ModelConfig | undefined {
       name: 'GPT-4o',
       cost: 0.005,
     },
+    'gpt-5': {
+      provider: 'openai',
+      modelId: 'gpt-5',
+      name: 'GPT-5',
+      cost: 0.00125,
+    },
+    'gpt-5-mini': {
+      provider: 'openai',
+      modelId: 'gpt-5-mini',
+      name: 'GPT-5 mini',
+      cost: 0.00025,
+    },
+    'gpt-5-nano': {
+      provider: 'openai',
+      modelId: 'gpt-5-nano',
+      name: 'GPT-5 nano',
+      cost: 0.00005,
+    },
     'gemini-2.5-pro': {
       provider: 'gemini',
       modelId: 'gemini-2.5-pro',
@@ -197,6 +215,18 @@ export function getModelConfig(model: string): ModelConfig | undefined {
       name: 'Claude 3.5 Sonnet',
       cost: 0.003,
     },
+    'claude-4.5-sonnet': {
+      provider: 'anthropic',
+      modelId: 'claude-4.5-sonnet',
+      name: 'Sonnet 4.5',
+      cost: 0.003,
+    },
+    'claude-4.5-haiku': {
+      provider: 'anthropic',
+      modelId: 'claude-4.5-haiku',
+      name: 'Haiku 4.5',
+      cost: 0.001,
+    },
   };
   return models[model];
 }