Merge pull request #2103 from PeterDaveHelloKitchen/GPT-5.1

feat: add OpenAI GPT-5.1 series models

Author: ofir-frd

pr_agent/algo/__init__.py

@@ -32,6 +32,11 @@
     'gpt-5-mini': 200000,  # 200K, but may be limited by config.max_model_tokens
     'gpt-5': 200000,
     'gpt-5-2025-08-07': 200000,
+    'gpt-5.1': 200000,
+    'gpt-5.1-2025-11-13': 200000,
+    'gpt-5.1-chat-latest': 200000,
+    'gpt-5.1-codex': 200000,
+    'gpt-5.1-codex-mini': 200000,
     'o1-mini': 128000,  # 128K, but may be limited by config.max_model_tokens
     'o1-mini-2024-09-12': 128000,  # 128K, but may be limited by config.max_model_tokens
     'o1-preview': 128000,  # 128K, but may be limited by config.max_model_tokens