OpenAI released details of an internal stress‑test aimed at measuring political bias in its chatbot models. The test, conducted on 100 topics with prompts ranging from liberal to conservative and charged to neutral, compared four models—including the newer GPT‑5 instant and GPT‑5 thinking—to earlier versions such as GPT‑4o and OpenAI o3. Results show the GPT‑5 models reduced bias scores by about 30 percent and handled charged prompts with greater objectivity, though moderate bias still appears in some liberal‑charged queries. The company says bias now occurs infrequently and at low severity, while noting ongoing political pressures on AI developers. Leia mais →