OpenAI has released a builder's guide to GPT-5.6, focusing on how startups can accelerate development of AI agents while reducing costs. The guide emphasizes strategic model selection and new capabilities in the Responses API.
According to the guide, startups are using GPT-5.6 to build more efficient AI agents by choosing the right model for each task, avoiding over-provisioning compute for simple operations. This approach helps balance performance and cost.
The Responses API enhancements are highlighted as a key enabler, offering improved functionality that simplifies agent development and integration. The guide provides practical insights for developers aiming to optimize their AI workflows.