Rumor: Anthropic's Internal Model Leads Public Version by About 4 Points

Unverified leaks claim Anthropic's internal Model 4 scores 178.76 on the AECI benchmark, about 4 points above its best public model Opus 5.5, suggesting vendors keep stronger unreleased models in reserve.

2026-11-10 ~ 2026-11-11 · 2 related posts

• Claim: Anthropic only ~4 points ahead internally, frontier labs holding back models — haider1 · 2026-11-10
• Leaked chart claims Anthropic's internal Model 4 hit 178.76 AECI — haider1 · 2026-11-11