Rumor: Anthropic's Internal Model Reaches 168 ECI

A leaked Anthropic chart indicates that Claude Opus 5 scores around 163.5 ECI, while community discussions speculate that their internal models may have already reached 166-168 ECI.

2026-07-25 ~ 2026-07-25 · 2 related posts

• Anthropic ECI chart puts Claude Opus 5 at about 163.5 — scaling01 · 2026-07-25
• Follow-up says Anthropic's internal model may already be at 166–168 ECI — scaling01 · 2026-07-25