OpenAI releases GPT-5.5 and GPT-5.5 Pro in the API (developers.openai.com)

OpenAI has launched GPT-5.5 and GPT-5.5 Pro, a new generation of models designed for complex professional tasks, now available via the Chat Completions and Responses API. The GPT-5.5 version introduces significant features such as a 1 million token context window, image input capabilities, structured outputs, and advanced function calling. Additionally, GPT Image 2 was released for high-quality image generation and editing, supporting flexible sizes and token-based pricing. These updates enhance the performance and utility of AI in handling intricate workloads, making it an essential tool for professionals. The introduction of these models marks a critical advancement for the AI/ML community, emphasizing improvements in processing power, multimodal inputs, and application versatility. Key technical implications include the ability to process long documents and complex queries efficiently, enabling more sophisticated interactions and outputs. The updated Agents SDK further enhances agent-based capabilities, allowing developers to run agents in controlled environments and manage memory creation and storage more effectively. Overall, these developments underline OpenAI's commitment to pushing the boundaries of AI applications to facilitate more detailed and nuanced user interactions in various professional contexts.