This researcher turned OpenAI’s open weights model gpt-oss-20b into a non-reasoning ‘base’ model with less alignment, more freedom
August 18, 2025
OpenAI’s new, powerful open weights AI large language model (LLM) family gpt-oss was released less than two weeks ago under a permissive Apache 2.0 license — the company’s first open weights model launch since GPT-2 in 2019 — but developers outside the company are already reshaping it.
One of the most striking examples comes from Jack Morris, a Cornell Tech PhD student, former Google…