Skip to content
Sprint projectJun 22, 2026Johannesburg

ALGORITHMIC BIAS: AFRICAN STEREOTYPES PORTRAYED BY LLMs

Mfundo Mbambo · Team Ubuntu AI

Submitted to Global South AI Safety Hackathon. Sprint projects are early-stage work by participants, not Apart Research publications.

Read the report

Report: ALGORITHMIC BIAS: AFRICAN STEREOTYPES PORTRAYED BY LLMs

Share

This project tests whether popular AI chatbots describe African people differently from Western people. As large language models are increasingly used across Africa to write job summaries, school materials, and news, the way they portray African subjects has real consequences. Yet this kind of geographic bias is rarely measured, and most existing bias research focuses on Western social categories rather than how Africa is represented compared to the rest of the world. Our approach is simple. We give five widely used AI models matched pairs of prompts that are identical except for the location. For example, "a doctor's day in Berlin" versus "a doctor's day in Nairobi," or "a child's dream in Oslo" versus "a child's dream in Lagos." By comparing the two answers, we can see whether the model treats the African subject differently, and in what ways.

Reviews

Judging this Sprint?

Review this project

Your public critique appears on this page without your name. Your private critique is not published; only the Apart team reads it. If you agree below, we share your review with grantmaking.ai (opens in new tab) and the Transformative AI Fund so strong projects can be funded.

Not shown on this page.

Shown on this page, without your name.

Only the Apart team reads this, and funders if you agree below.

Share my name publicly on grantmaking.ai *
Share my private critique with funders *

How much would this matter for AI safety if it worked? How innovative is it? For scores of 4-5: is this actually new to the field, or replicating recent work?

Scoring guide
  1. 1Negligible. No clear problem addressed, or no meaningful novelty.
  2. 2Limited. Addresses a real problem but with a generic or well-trodden approach. Incremental at best.
  3. 3Moderate. Clear problem with a reasonable approach; some novelty in framing or method beyond routine application of existing tools.
  4. 4Significant. Important problem with an original approach, or identifies a neglected problem area. A valuable contribution others could build on.
  5. 5Exceptional. Tackles a critical AI safety problem with a genuinely novel approach, or opens a new research direction. Clear theory of change. You'd be excited to share this with researchers in the area.

How sound are methodology, implementation, and findings?

Scoring guide
  1. 1Seriously flawed. Methodology broken, results uninterpretable, or implementation doesn't work.
  2. 2Weak. Approach has significant gaps: missing validation, flawed experimental design, or incomplete implementation.
  3. 3Competent. Technically solid given the short duration. Methodology makes sense, results are interpretable, limitations acknowledged, work builds toward clear conclusions.
  4. 4Strong. Thorough methodology with convincing validation. Results clearly support conclusions. Immediately useful for future work.
  5. 5Exceptional. Ambitious scope executed rigorously. Surprising findings, novel methods, or unusually robust validation.

How clearly are work, findings, and impact potential communicated?

Scoring guide
  1. 1Incomprehensible. Cannot determine what the project is actually claiming or doing.
  2. 2Hard to follow. Key information buried, missing, or diluted by excessive length. Significant effort to extract main points.
  3. 3Clear enough. Can understand the problem, approach, and results without undue effort. Core content clearly present: problem, method, findings, limitations.
  4. 4Well presented. Easy to follow, well-structured, appropriate level of detail. Target audience would get it quickly.
  5. 5Exceptionally clear. A pleasure to read. Complex ideas made accessible. Could serve as a model for how to present this type of work.

  1. Matched-pair contrastive prompting focused specifically on Africa — While geographic bias in LLMs has been studied, most work focuses on performance gaps (e.g., IrokoBench testing how well models handle African languages) rather than representational bias in how models describe African subjects. Your approach of comparing narrative outputs for identical prompts with only location changed is a clean, intuitive methodology .

    Practical downstream framing — Connecting this to real-world use cases (job summaries, school materials, news) in Africa gives it applied significance beyond academic interest .

  2. This paper offers a valuable, Global South–led audit of how widely deployed LLMs narrate African subjects compared to Western ones, with a clear focus on representational harms in everyday scenarios that are directly relevant to AI deployment in African contexts. The paired‑prompt design, four prompt groups, and structured harm rubric make the methodology easy to follow and reproduce, and the inclusion of a non‑Western model strengthens the claim that the observed bias is not just a US‑data artifact.

    However, the study’s quantitative robustness is limited by the small prompt set, single‑rater scoring, and absence of inter‑rater reliability or basic statistical analysis; adding a few concrete scoring examples and a short per‑model summary would make the findings more compelling. The writing is generally clear and well structured, with vivid examples, but could be tightened further by explicitly stating the novel contribution and “theory of change” (how this audit can inform procurement, benchmark design, and governance for African institutions) and by presenting the rubric in a more digestible format.

    Overall, this is a strong exploratory audit with high relevance for Global South AI safety that would benefit most from scaling up the methodology and sharpening its pathway to concrete policy and evaluation tools.

    Read full reviewShow less
  3. The finding that models could accurately diagnose the bias they had just produced — confirming it's a hidden default rather than an intentional output — is the single most memorable result in this set and immediately communicable to a non-technical audience. To give the findings real scientific weight, recruit just one additional person to score a portion of the outputs independently, and archive all raw model responses in a public folder so others can verify and build on your work. Your Africa-vs-West framing is complementary to their intra-Africa work, and a collaboration could significantly amplify the impact of what you've started here.

Cite this project

@misc{mbambo2026algorithmic,
  title = {{ALGORITHMIC BIAS: AFRICAN STEREOTYPES PORTRAYED BY LLMs}},
  author = {Mfundo Mbambo},
  year = {2026},
  month = jun,
  note = {Submitted to Global South AI Safety Hackathon, an Apart Research Sprint},
  howpublished = {\url{https://apartresearch.com/sprints/projects/algorithmic-bias-african-stereotypes-portrayed-by-llms-99b9}},
  url = {https://apartresearch.com/sprints/projects/algorithmic-bias-african-stereotypes-portrayed-by-llms-99b9}
}

Build something like this at the next Sprint

AI Collusion Research Sprint · Oct 23 - 25, 2026