"The update expands ChatGPT's personalization controls with presets such as professional, friendly, candid, quirky, efficient, cynical, and nerdy, and aims to improve the reliability of custom instructions so they persist across multi-turn conversations. Implications for enterprises Analysts point out that the real story with GPT-5.1 is not the headline features but the subtle behavioral shifts that remove a lot of the friction enterprises quietly learned to live with this past year."
""The model is quicker to pick up intent, less likely to wander, and noticeably better at keeping a steady voice from one message to the next," said Sanchit Vir Gogia, chief analyst, founder, and CEO of Greyhound Research. "That alone cuts a surprising amount of hidden operational waste. Teams no longer need to rephrase the same request four different ways or spend half their time smoothing out tone inconsistencies that creep into customer-facing text. This is something CIOs would appreciate.""
ChatGPT adds preset personality modes (professional, friendly, candid, quirky, efficient, cynical, and nerdy) and improves persistence of custom instructions across multi-turn conversations. The model now picks up user intent faster, wanders less, and maintains a steadier voice between messages. Those behavioral changes reduce friction by decreasing the need to rephrase requests repeatedly and lowering the time spent smoothing tone inconsistencies in customer-facing text. Enterprises benefit from reduced hidden operational waste, fewer iterations to achieve desired outputs, and more consistent messaging. CIOs and operations leaders can expect smoother integration, improved efficiency, and more predictable AI-driven workflows.
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