The builder’s guide to GPT‑5.6
OpenAI releases GPT-5.6 builder guide targeting startups building cost-efficient AI agents
OpenAI published a builder-focused guide for GPT-5.6, emphasizing faster and more cost-efficient AI agent development for startups. The guide highlights smarter model selection and new Responses API capabilities as key differentiators. This signals OpenAI's continued push to capture developer mindshare by positioning its latest model as the practical default for agentic application builders.