AnalysisAI ModelsNovember 5, 2026

METR: Anthropic's unreleased Model 4 scores 178.6 on AI capability index

Read original source →reddit.com

METR reports Anthropic's unreleased "Model 4," trained September–October 2026, hit 178.6 on the AI capability index — a jump nearly 90% as large as the entire Opus 4.6 to Mythos 5 improvement. It scored above 50% on all 15 capability benchmarks tested.

2 sources

More stories today

Open the live feed