OpenAI has released a builder's guide for its GPT-5.6 model, focusing on enabling startups to create more cost-efficient and faster AI agents. The guide highlights improved model selection capabilities and introduces new tools within the Responses API to facilitate this development. AI
IMPACT Enables startups to build more cost-efficient and faster AI agents using new model selection and API tools.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=2 ai=1.0]
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