Meta's latest AI model, Llama-4-Maverick, has come under scrutiny after scoring poorly on the LM Arena benchmark. The unmodified version ranked lower than established competitors like OpenAI's GPT-4o and Google’s Gemini 1.5. The controversy arose when Meta used an experimental variant to achieve a high score, prompting the benchmark maintainers to revise their policies. While Meta defended its approach, stating that customization allows for varied use cases, the incident raises concerns about the reliability of such benchmarks in assessing AI performance across different contexts.