Leak Claims Anthropic's Opus 5.5 Cost $10B, Drawing Skepticism

A leak from an Anthropic investor meeting suggests Opus 5.5 training cost up to $10 billion with three 5.5 models in development, though skeptics note the figure seems inconsistent with Anthropic's estimated cumulative training costs of about $16 billion.

2026-11-11 ~ 2026-11-11 · 3 related posts

• Leaked Anthropic remarks: Opus 5.5 cost over $10B, AI market is "winner take all" — A_K_Nain · 2026-11-11
• Did Opus 5.5 really cost $10B? Analysts argue final training run is under 10% of that — teortaxesTex · 2026-11-11
• Rumor: Anthropic's Opus 5.5 training spend reportedly $10B, final run compute under 10% of it — teortaxesTex · 2026-11-11