OpenAI Officially Launches GPT-5.6 Series Models and ChatGPT Work Agents

According to Jiemian News, OpenAI has announced the full release of the GPT-5.6 series models, including the flagship model GPT-5.6 Sol, the balanced model Terra, and the cost-effective model Luna. Among them, Sol supports the new Ultra mode, which can coordinate four AI agents by default to process complex tasks in parallel, further enhancing efficiency in scenarios such as code development, scientific research, cybersecurity, and knowledge work. OpenAI stated that the GPT-5.6 series achieved industry-leading results in multiple benchmark tests, significantly reducing inference costs and response times while maintaining or improving performance. The company also noted that GPT-5.6 is equipped with the most comprehensive security protection system to date and officially supports programmatic tool invocation, further strengthening the ability to automate complex task execution.