Crawl-to-refer ratios in July 2026: Anthropic 1,917:1, OpenAI 251:1
Crawl-to-refer ratios move fast. Anthropic fell from 38,744:1 in July 2025 to about 517:1 for 25 to 31 October 2026, while OpenAI swung from 251:1 in July to about 1,900:1. Dates matter.