OpenAI Releases GPT-4.1 with Major Improvements

OpenAI has unveiled GPT-4.1, the latest version of its flagship model, combining the strengths of GPT-4 with significant upgrades. Available to ChatGPT Plus users, GPT-4.1 offers improved reasoning, greater reliability, and a 128k context window. A key highlight is its unified architecture—previously, ChatGPT used multiple models for different tasks (e.g. browsing, coding, file handling), but GPT-4.1 handles everything within a single model. The update also brings better tool usage, faster responses, and enhanced memory. OpenAI states that GPT-4.1 matches or surpasses GPT-4’s performance on various academic and professional benchmarks.