Job adverts written by ChatGPT are 40% more biased than those written by humans, new research has revealed.

According to the research, carried out by Inclusive communication platform Develop Diverse, ChatGPT-generated job ads were particularly biased against people belonging to marginalized communities. For example, there was an increase in bias for people identifying as non-binary/gender non-confirming (38%) or neurodivergent (41%), as well as those from a disadvantaged ethnic group (42%), and people living with a physical disability (41%). ChatGPT was also 41% likely to show bias against women, compared to just 9% of men, as the chart from the study (below) illustrates.
Category bias | Inclusivity score*:Human written ads | Inclusivity score*: ChatGPT written ads | GPT increase in bias – relative to human written ads |
Total | 65 | 39 | 40% |
Men | 92 | 84 | 9% |
Women | 66 | 39 | 41% |
Non-conforming*** | 68 | 42 | 38% |
Advantaged ethnicity | 77 | 57 | 26% |
Disadvantaged ethnicity** | 65 | 38 | 42% |
Young | 76 | 54 | 29% |
Old | 67 | 42 | 37% |
Abled | 76 | 54 | 29% |
Disabled | 63 | 37 | 41% |
Neurotypical | 76 | 54 | 29% |
Neurodivergent **** | 63 | 37 | 41% |
Source: Develop Diverse
Given the high levels of bias found in the study, Develop Diverse advises employers to use AI technology, such as ChatGPT, with caution when creating job adverts. “The emergence of ChatGPT can negatively influence companies to undo the work we’ve accomplished around inclusion and diversity in recent years,” stated Jenifer Clausell-Tormos, CEO and founder of Develop Diverse. “ChatGPT has its place in the working world, but needs a trained human eye. Used alone, it reinforces the biases and stereotypes we are trying hard to remove.”
Research Methodology: The research randomly selected 7000+ publicly available human-written job adverts across 15 industries, and prompted ChatGPT to create an ad for each position, based on job titles.
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