← FeedCopy sourceOpenAI· GPT / ChatGPT / APIHow GPT-5.6 fuses frontier intelligence with frontier efficiencyGPT-5.6 improves AI efficiency across models, inference, and agentic workflows, helping deliver more useful intelligence per dollar.Visit source ↗openai.comAnnounced29 Jul 2026 00:00 UTCOther storiesOpenAI · 18 AugIntroducing ChatGPT for Teens: Built for learning, backed by protectionsProduct launchOpenAI · 18 AugIntroducing ChatGPT for Teens: Built for learning, backed by protectionsProduct launchOpenAI · 18 AugPartnering with CodeAI to prepare the first AI generationOpenAI · 17 AugThe Defender’s WindowProduct launchOpenAI · 17 AugOpenAI joins PORTS-Pike projectPartnershipOpenAI · 17 AugNew policy ideas for the Intelligence AgeProduct launch