TTM-R3

TTM-R3 is IBM Research's March 31, 2026 refresh of the TinyTimeMixer family. While still classified as `tinytimemixer` under the hood, R3 adds trend-residual decomposition, a multi-quantile probabilistic forecasting head, gated attention, FFT-based frequency embeddings, and learnable sequence-level register tokens, while preserving the compact ~1.4M–35M parameter footprint that makes TTM practical on CPUs and lightweight hosted inference. IBM reports a 15–50x inference speedup vs state-of-the-art forecasters and a meaningful accuracy improvement over TTM-R2, but the current upstream checkpoint and toolkit path still emit uninitialized-weight warnings during direct load, so short deterministic continuation quality should be validated on your own holdout before production reliance. Hosted on TSFM.ai under a pass-through compute posture: TTM-R3 ships under the CC-BY-NC-SA-4.0 license (research / non-commercial use only), so you are responsible for ensuring your intended use falls within the upstream license — see section 7 of our Terms of Service.