Anthropic's reported 80%+ gross margin dwarfs OpenAI's 33%

Anthropic reportedly posts a gross margin above 80% before partner revenue shares and training costs, far exceeding OpenAI's 33% in 2025—a strong signal ahead of a potential IPO, though critics mock the metric as only impressive 'excluding capex and opex.'

2026-09-14 ~ 2026-09-14 · 2 related posts

• Anthropic reportedly runs 80%+ gross margins, far above OpenAI's 33% — kimmonismus · 2026-09-14
• "Great margins once you remove capex and opex": Anthropic's 80%+ gross margin math mocked — ericwdolan · 2026-09-14