S-1: as of September 30, Anthropic had 11,900+ customers spending $100,000+ annually, 1,900+ customers spending $1M+, and ~250 customers spending $10M+ (Rebecca Bellan/TechCrunch)

As of September 30, Anthropic had over 11,900 customers spending $100,000+ annually, 1,900+ customers spending $1M+, and approximately 250 customers spending $10M+, according to its S-1 filing.