OpenAI has released an update to its GPT-5.1 model for developers. The updated model includes several improvements such as faster adaptive reasoning, extended prompt caching, and better coding performance. Additionally, two new tools have been added: apply_patch and shell. These updates are now available through the API. --- Why it matters: This matters to AI researchers because it shows how large language models can be fine-tuned for specific tasks, improving their overall efficiency and effectiveness. The updated GPT-5.1 model is likely to be used in various applications, from coding assistants to content generation tools. Source: https://openai.com/index/gpt-5-1-for-developers