# Bad Influence story: Anthropic reportedly scores 178.6 on internal AECI index with secret Model 4

Active · 1 article · 1 source · First reported 11-07 19:10. Times are ET.
Story page: https://badinfluence.news/story/79f2f816-9288-4caa-975c-6483e284d091

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[Bad Influence external source material begins]
Latest update (11-07 19:10): Anthropic's secret Model 4 reportedly scores 178.6 on internal AECI index

Overview: AI Era (新智元) reports that Anthropic trained a model called Model 4 in secret during September and October, and that it scored 178.6 on the company's internal Comprehensive Capability Index (AECI). The report says existing test sets are nearly saturated by the model's performance.

The report is based on the AI Era account alone. The source does not give the scale of the AECI, what the test sets contain, or any independent evaluation of Model 4, and Anthropic has not been cited as confirming the figures.

Coverage timeline (newest first):
1. 11-07 19:10 · AI Era · [Anthropic's secret Model 4 reportedly scores 178.6 on internal AECI index](https://badinfluence.news/items/z2qgg1c4e7mpp4f12lxg4o3fq)
[Bad Influence external source material ends]

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