OpenAI has introduced the latest iterations of its AI models, GPT-5.1 Instant and GPT-5.1 Thinking, which are integrated into ChatGPT. The update aims to address previous feedback by offering users enhanced conversational abilities and improved adherence to instructions. In response to concerns about the overly positive nature of earlier models, OpenAI now provides users with eight preset communication styles, including Professional, Friendly, Candid, Quirky, Efficient, Cynical, and Nerdy, along with a Default option. Despite these personality variations, the core capabilities of the models remain consistent across all settings.
The new GPT-5.1 Instant model serves as the default choice for most tasks in ChatGPT, prioritizing speed, while GPT-5.1 Thinking focuses on simulated reasoning to tackle complex problem-solving challenges. OpenAI emphasizes that both models exhibit improved performance on technical evaluations like math and coding tests compared to the earlier GPT-5 release.
By incorporating adaptive reasoning into GPT-5.1 Instant, the model autonomously determines its approach to different tasks, enhancing its versatility and problem-solving capabilities. These advancements in AI technology represent OpenAI’s commitment to providing users with a more tailored and effective communication experience.
Source: Ars Technica