Anthropic Economic Index report: Learning curves

**Executive summary:** This report analyzes Claude usage from February 5–12, 2026, finding that Claude.ai conversations diversified while coding migrated to the first-party API, causing a slight decline in average task wage on Claude.ai; users preferentially select the Opus model for higher-value tasks, and higher-tenure users demonstrate more collaborative use and higher success rates, consistent with learning-by-doing, while geographic convergence within US states slowed and global usage concentration increased.