Merge pull request #9 from utopia-php/chore-update-openai-list

chore: update openai model list

Author: eldadfux

README.md

@@ -70,9 +70,12 @@ $openai = new OpenAI(
 ```
 
 Available OpenAI Models:
-- `MODEL_GPT_4_TURBO`: Latest GPT-4 Turbo
-- `MODEL_GPT_4`: Standard GPT-4
-- `MODEL_GPT_3_5_TURBO`: Fast GPT-3.5 Turbo
+- `MODEL_GPT_4_5_PREVIEW`: GPT-4.5 Preview - OpenAI's most advanced model with enhanced reasoning, broader knowledge, and improved instruction following
+- `MODEL_GPT_4_1`: GPT-4.1 - Advanced large language model with strong reasoning capabilities and improved context handling
+- `MODEL_GPT_4O`: GPT-4o - Multimodal model optimized for both text and image processing with faster response times
+- `MODEL_O4_MINI`: o4-mini - Compact version of GPT-4o offering good performance with higher throughput and lower latency
+- `MODEL_O3`: o3 - Balanced model offering good performance for general language tasks with efficient resource usage
+- `MODEL_O3_MINI`: o3-mini - Streamlined model optimized for speed and efficiency while maintaining good capabilities for routine tasks
 
 #### Anthropic
 

src/Agents/Adapters/OpenAI.php

@@ -11,19 +11,34 @@
 class OpenAI extends Adapter
 {
     /**
-     * GPT-4 Turbo - Latest and most capable model
+     * GPT-4.5 Preview - OpenAI's most advanced model with enhanced reasoning, broader knowledge, and improved instruction following
      */
-    public const MODEL_GPT_4_TURBO = 'gpt-4-turbo-preview';
+    public const MODEL_GPT_4_5_PREVIEW = 'gpt-4.5-preview';
 
     /**
-     * GPT-4 - Previous generation model
+     * GPT-4.1 - Advanced large language model with strong reasoning capabilities and improved context handling
      */
-    public const MODEL_GPT_4 = 'gpt-4';
+    public const MODEL_GPT_4_1 = 'gpt-4.1';
 
     /**
-     * GPT-3.5 Turbo - Fast and efficient model
+     * GPT-4o - Multimodal model optimized for both text and image processing with faster response times
      */
-    public const MODEL_GPT_3_5_TURBO = 'gpt-3.5-turbo';
+    public const MODEL_GPT_4O = 'gpt-4o';
+
+    /**
+     * o4-mini - Compact version of GPT-4o offering good performance with higher throughput and lower latency
+     */
+    public const MODEL_O4_MINI = 'o4-mini';
+
+    /**
+     * o3 - Balanced model offering good performance for general language tasks with efficient resource usage
+     */
+    public const MODEL_O3 = 'o3';
+
+    /**
+     * o3-mini - Streamlined model optimized for speed and efficiency while maintaining good capabilities for routine tasks
+     */
+    public const MODEL_O3_MINI = 'o3-mini';
 
     /**
      * Default OpenAI API endpoint
@@ -74,7 +89,7 @@ class OpenAI extends Adapter
      */
     public function __construct(
         string $apiKey,
-        string $model = self::MODEL_GPT_3_5_TURBO,
+        string $model = self::MODEL_O3_MINI,
         int $maxTokens = 1024,
         float $temperature = 1.0,
         ?string $endpoint = null,
@@ -138,11 +153,22 @@ public function send(array $messages, ?callable $listener = null): Message
         $payload = [
             'model' => $this->model,
             'messages' => $formattedMessages,
-            'max_tokens' => $this->maxTokens,
             'temperature' => $this->temperature,
             'stream' => true,
         ];
 
+        // Use 'max_completion_tokens' for o-series models, else 'max_tokens'
+        $oSeriesModels = [
+            self::MODEL_O3,
+            self::MODEL_O3_MINI,
+            self::MODEL_O4_MINI,
+        ];
+        if (in_array($this->model, $oSeriesModels)) {
+            $payload['max_completion_tokens'] = $this->maxTokens;
+        } else {
+            $payload['max_tokens'] = $this->maxTokens;
+        }
+
         $content = '';
         $response = $client->fetch(
             $this->endpoint,
@@ -230,9 +256,12 @@ protected function process(Chunk $chunk, ?callable $listener): string
     public function getModels(): array
     {
         return [
-            self::MODEL_GPT_4_TURBO,
-            self::MODEL_GPT_4,
-            self::MODEL_GPT_3_5_TURBO,
+            self::MODEL_GPT_4_5_PREVIEW,
+            self::MODEL_GPT_4_1,
+            self::MODEL_GPT_4O,
+            self::MODEL_O4_MINI,
+            self::MODEL_O3,
+            self::MODEL_O3_MINI,
         ];
     }
 

tests/Agents/AgentTest.php

@@ -16,7 +16,7 @@ class AgentTest extends TestCase
     protected function setUp(): void
     {
         // Create a mock adapter
-        $this->mockAdapter = new OpenAI('test-api-key', OpenAI::MODEL_GPT_3_5_TURBO);
+        $this->mockAdapter = new OpenAI('test-api-key', OpenAI::MODEL_O3_MINI);
         $this->agent = new Agent($this->mockAdapter);
     }
 

tests/Agents/Conversation/ConversationOpenAITest.php

@@ -17,7 +17,7 @@ protected function createAdapter(): Adapter
 
         return new OpenAI(
             $apiKey,
-            OpenAI::MODEL_GPT_4,
+            OpenAI::MODEL_O3_MINI,
             1024,
             1.0
         );