Contamination MapTime series / Model
Chronos-2-Synth
- Organisation
- Amazon
- Family
- Chronos · version 2
- Released
- 2025-11-24 (HF repo autogluon/chronos-2-synth createdAt 2025-11-24 (https://huggingface.co/api/models/autogluon/chronos-2-synth); added to the repository README model table on 2026-01-06 (commit f889ae66 'Add new model IDs to README'))
- Checkpoints
- autogluon/chronos-2-synth
- Weights
- Open · apache-2.0
- Links
- PaperModel cardCode
Training data disclosure: Full list
Level determined for 100% of benchmark cells.
- TestTest data seen0
- SeenSeen, split unclear0
- TrainTraining data seen0
- Related data seen0
- NoNot seen49
- ?Unknown0
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Other declared training data
-
synthetic univariate and multivariate data · split: unknown
Presumably the Chronos-2 synthetic generators (TSI, TCM, KernelSynth, AR/ETS multivariatizers), but neither the paper nor the card states the exact generator mix for this variant.
Evidence
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
huggingface.co · model card · retrieved 2026-10-15
Benchmark cells
GIFT-Eval
Not seen Jena Weather (GIFT-Eval) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen BizITObs - Application · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen BizITObs - Service · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen BizITObs - L2C · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Bitbrains - Fast Storage · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Bitbrains - rnd · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Restaurant (Recruit Restaurant Visitor Forecasting) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ETT1 (GIFT-Eval) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ETT2 (GIFT-Eval) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Loop Seattle (LibCity) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen SZ-Taxi (LibCity) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M_DENSE (LibCity) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Solar (LSTNet, 137 Alabama PV plants) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Hierarchical Sales (Mancuso et al., 2020) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M4 Yearly · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M4 Quarterly · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M4 Monthly · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M4 Weekly · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M4 Daily · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen M4 Hourly · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Hospital · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen COVID Deaths · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen US Births · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Saugeen River Flow · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Temperature Rain · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen KDD Cup 2018 · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Car Parts · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ElectricityLoadDiagrams20112014 (UCI) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Long-horizon forecasting (ETT, Electricity, Traffic, Weather, Exchange, ILI)
Not seen ETTh1 · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ETTh2 · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ETTm1 · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ETTm2 · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Electricity (ECL, 321 clients) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Traffic (PeMS San Francisco Bay, 862 sensors) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Weather (Jena, 2020; Autoformer) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Exchange-Rate · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen ILI (CDC influenza-like illness, national) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Time-series anomaly detection
Not seen TSB-AD-U (TSB-AD univariate) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen TSB-AD-M (TSB-AD multivariate) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen UCR Time Series Anomaly Archive (Hexagon ML/UCR, KDD Cup 2021) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Server Machine Dataset (SMD) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Mars Science Laboratory (MSL) telemetry anomaly dataset · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Soil Moisture Active Passive (SMAP) telemetry anomaly dataset · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Pooled Server Metrics (PSM) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Secure Water Treatment (SWaT) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Yahoo S5 Labeled Anomaly Detection Dataset (Yahoo Webscope S5) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen Numenta Anomaly Benchmark (NAB) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Time-series classification
Not seen UCR Time Series Classification Archive (2018) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Not seen UEA Multivariate Time Series Classification Archive (2018) · absent from the complete list of training data
Evidence (2)
“This is a variant of the Chronos-2 model which has only been trained on synthetic univariate and multivariate data.”
“To examine the limits of this approach, we trained a version of Chronos-2 using only synthetic data.”
Notes
Ablation variant, no real data. The paper presents it as the strictly zero-shot reference for GIFT-Eval: 'For strictly zero-shot results, we refer the reader to Section 5.4, where we evaluate a variant of Chronos-2 trained exclusively on synthetic data.'
Sources
- autogluon/chronos-2-synth model card · model card · retrieved 2026-10-15
- Chronos-2: From Univariate to Universal Forecasting (technical report, arXiv v1) · paper · retrieved 2026-10-15