Machine Mindset describes a pipeline for producing adapters for all 16 Myers-Briggs types in English and Chinese using synthetic data, two supervised fine-tuning stages, and Direct Preference Optimization. To build the behavior dataset, ChatGPT assigns each Alpaca-GPT4 instruction to one of the four MBTI dichotomies and generates two opposing responses, one for each pole. The distribution is highly imbalanced: the paper identifies Information as dominant and Energy as least represented. A second ChatGPT-generated dataset contains direct or indirect personality questions with answers that state the model's own type; it is intended to teach “self-awareness.” For each type, INFP, for example, the first SFT combines the four I, N, F, and P behavior subsets, and the second uses INFP self-description questions. The authors propose interchangeable LoRA adapters and DPO preferences built from opposite-pole responses. However, the report does not identify the base model, dataset sizes, splits, hyperparameters, full prompts, ChatGPT version, or LoRA/DPO configuration. The published evaluation consists mainly of charts from a modified MBTI questionnaire and six screenshots of Chinese conversations. Visual inspection of all 16 charts contradicts the claim of complete alignment: only eight profiles, INTJ, INTP, ENFP, ISTJ, ESTJ, ESFJ, ISTP, and ESTP, unambiguously place all four assigned poles above 50%. ENTP and INFJ are exactly tied 50/50 on J/P. The other six contradict at least one assigned letter: ENTJ scores 67% Sensing rather than Intuition; INFP 57% Thinking rather than Feeling; ENFJ 55% Perceiving rather than Judging; ISFJ is 52% Extraversion and 57% Thinking; ISFP is 54% Thinking and ties Sensing/Intuition; and ESFP is 59% Intuition rather than Sensing. Some successes are strong, ISTJ reaches I 79%, S 81%, T 83%, J 86%, while ESTJ reaches E 60%, S 93%, T 96%, J 86%, but others barely cross the threshold. Radar charts labelled “Second Results” do not define a second replication or report uncertainty. The main text says it evaluated quality, coherence, multiple domains, user feedback, ablations, and reasoning-related abilities, but supplies no sample, metrics, baselines, numerical results, or analyses for those claims. Six open-question screenshots show that selected models declare the requested type and answer in different styles, but they are unscored examples. There is no comparison with prompting, SFT-only, self-awareness-only, no-DPO, or the base model, and no stability test across runs, prompts, languages, or time. Training models to name their type and then assessing them with similar personality questions is circular and does not establish self-knowledge. The work offers a recipe and open resources for MBTI-style control, but its published evidence supports partial output classification, not 16 stable personalities or type-driven cognitive abilities.
Research question
Can a combination of behavioral and self-description data generated by ChatGPT, two stages of SFT and DPO make an LLM produce responses and aligned identity statements stably with one of the 16 MBTI types?