Since its initial launch, ChatGPT has undergone unprecedented technological evolution. Between 2022 and 2025, its architecture has steadily improved, becoming more precise, efficient, and capable of handling complex conversations. In this article, we answer key questions about how its inner workings have changed over these years.
What has changed in the ChatGPT architecture since 2022?
From GPT-3.5 to GPT-5, the evolution has incorporated multimodal models, improving the understanding of text, images, and more.
How has accuracy improved?
Thanks to more refined training and advanced techniques like RLHF, the answers are now more accurate and relevant.
What new features does long-term memory bring?
Optional memory personalizes the experience, remembering useful details (always with user control).
And what about security?
With independent audits, the filters have been strengthened to improve content moderation.
What can we expect in the future?
AI aims for greater logical reasoning and transparency in its responses.