Anthropic said on the 16th that use of its artificial intelligence (AI) model Claude is led by the United States, India, Japan, Korea, and the United Kingdom.
Anthropic, called an "OpenAI rival," said in its fourth Economic Index Report published that day, "Global Claude use is concentrated in certain countries, with a small number of countries accounting for a significant share of total usage."
By the Anthropic AI Utilization Index (AUI), which measures the concentration of Claude use relative to the working-age population, Korea scored 3.12, indicating high usage relative to population. It ranked seventh after Israel, Singapore, the United States, Switzerland, and Canada.
According to Anthropic's study, Claude usage showed a strong correlation with per-capita gross domestic product (GDP) by country. The report said, "If per-capita GDP increases by 1%, Claude usage increases by an average of 0.7%," and "So far, there is no clear evidence that low-income countries are narrowing this gap."
The report took a deep look at how AI affects the global work environment and economic structure. The analysis is based on the period just before the release of the latest model Claude Opus 4.5 in November last year.
Anthropic said the scope of AI adoption at work is expanding rapidly. The share of roles where AI is used for more than a quarter of all tasks increased from 39% in September last year to about 49% now.
AI also tended to be used to boost productivity through collaboration with humans rather than replacing highly skilled workers. For Claude, the "augmentation" approach of using AI as a supplementary tool accounted for 51.7% of overall use, surpassing half.
In Korea, "marketing content creation and optimization" was cited as the most common use case. Use for "production support such as video scripts, podcasts, and music content creation" was 4.1 times higher than the average, and "translation of text and documents across various languages" was also 1.9 times higher than the average.
Of Claude.ai use in Korea, 25.6% focused on the "computer and mathematics" field, and "code debugging, modification, and refactoring (3.9%)" also emerged as a major use case.
An Anthropic official said, "Korean users are using Claude as a practical work tool in a wide range of areas, including creative content production, academic research, business strategy development, and everyday decision-making."