OpenAI Launches a New GPT‑5.1 Model, Improved on Intelligence and Communication Style

IBL News | New York

OpenAI yesterday announced an upgrade to the GPT-5 series with the release of an enhanced GPT‑5.1 Instant, “warmer, more intelligent, and better at following instructions and conversations,” and a new GPT‑5.1 Thinking, “easier to understand and faster on simple tasks, more persistent on complex ones.”

“GPT‑5.1 improves meaningfully on both intelligence and communication style,” said the company.

“We’ve also improved instruction following, so the model more reliably answers the question you actually asked.”

These personality settings will be applied across all models. The original Cynical (formerly Cynic) and Nerdy (formerly Nerd) options introduced earlier this year will remain available unchanged under the same dropdown in personalization settings.

Updates made in personalization settings will take effect across all chats, including ongoing conversations.