chronos-2

Chronos-2 Update Jun 5, 2026:** ☁️ Deploy Chronos-2 on AWS with AutoGluon-Cloud. Real-time, serverless, or batch inference in 3 lines of code — pandas DataFrames in, forecasts out. Check out the new deployment guide. Chronos-2** is a 120M-parameter, encoder-only time series foundation model for zero-shot forecasting. It supports **univariate**, **multivariate**, and **covariate-informed** tasks within a single architecture. Inspired by the T5 encoder, Chronos-2 produces multi-step-ahead quantile forecasts and uses a group attention mechanism for efficient in-context learning across related series and covariates. Trained on a combination of real-world and large-scale synthetic datasets, it achieves **state-of-the-art zero-shot accuracy** among public models on **fev-bench**, **GIFT-Eval**, and **Chronos Benchmark II**. Chronos-2 is also **highly efficient**, delivering over 300 time series forecasts per second on a single A10G GPU and supporting both **GPU and CPU inference**. Links ☁️ Deploy on SageMaker with AutoGluon-Cloud (recommended) 🚀 Deploy on SageMaker with JumpStart 📄 Technical report 💻 GitHub 📘 Example notebook 📰 Amazon Science Blog Overview | Capability | Chronos-2 | Chronos-Bolt | Chronos | |------------|-----------|--------------|----------| | Univariate Forecasting | ✅ | ✅ | ✅ | | Cross-learning across items | ✅ | ❌ | ❌ | | Multivariate Forecasting | ✅ | ❌ | ❌ | | Past-only (real/categorical) covariates | ✅ | ❌ | ❌ | | Known future (real/categorical) covariates | ✅ | 🧩 | 🧩 | | Max. Context Length | 8192 | 2048 | 512 | | Max. Prediction Length | 1024 | 64 | 64 | 🧩 Chronos & Chronos-Bolt do not natively support future covariates, but they can be combined with external covariate regressors (see AutoGluon tutorial). This only models per-timestep effects, not effects across time. In contrast, Chronos-2 supports all covariate types natively. Running the model locally For experimentation and local inference, you can use the inference package. Install the pack