State of the art on ChatPPG

#1 on BUT PPG Heart rate

5.47MAE (BPM) (lower is better)

Method: AnyPPG
Reported in: AnyPPG: An ECG-Guided PPG Foundation Model Trained on Over 100,000 Hours of Recordings for Holistic Health Profiling · Table 3
Compared: 6 results under the same protocol; runner-up Chronos-2 7.05
Protocol: as defined per dataset in the paper · within-dataset · linear probe on frozen embeddings

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Results as reported by the authors; not independently reproduced. Awarded 2026-10-20; re-checked on every atlas sync.