SAVRN Model Hub · Comparisons
chronos-2 vs chronos-2-synth
Chronos-2 has 119M parameters and chronos-2-synth has 119M parameters; both are released under Apache License 2.0; at 16-bit, chronos-2 needs about 0.3 GB (1x MI300X from $1.85 an hour) and chronos-2-synth about 0.3 GB (1x MI300X from $1.85 an hour).
| Field | chronos-2 autogluon/chronos-2 | chronos-2-synth autogluon/chronos-2-synth |
|---|---|---|
| Publisher | Autogluon | Autogluon |
| Task | Time series forecasting | Time series forecasting |
| Modality | Time series | Time series |
| Parameters, as reported | 119M parameters | 119M parameters |
| Architecture | Chronos2Model | Chronos2Model |
| Library | chronos-forecasting | chronos-forecasting |
| Context length | Not stated | Not stated |
| Repository size | 477.9 MB | 476.0 MB |
| Artifact formats | safetensors | safetensors |
| License | apache-2.0 | apache-2.0 |
| Access | Open weights, no gate | Open weights, no gate |
| Memory at 16-bit (weights and margin) | 0.3 GB | 0.3 GB |
| Cheapest GPUs at 16-bit, per hour | 1x MI300X, $1.85 | 1x MI300X, $1.85 |
| Memory at 4-bit (weights and margin) | 0.1 GB | 0.1 GB |
| Cheapest GPUs at 4-bit, per hour | 1x MI300X, $1.85 | 1x MI300X, $1.85 |
| Revision viewed | 60088152a34e | 3607918a9fd0 |
| Downloads reported by the hub | 6.6M | 470.2k |
| Last observed | 2026-10-16 | 2026-09-18 |
An evaluation row appears only where at least two of these models report the same benchmark with the same stated configuration, metric, unit and setup. Different evaluators stay named in each cell. Values are shown as reported: no unit conversion, no ranking.
SAVRN's Notes on chronos-2
Forecasting, not text: Chronos-2 takes one series or several related ones with covariates and returns multi-step quantile forecasts, zero-shot. At 119M parameters it needs 0.3 GB at 16-bit — 0.2 GB of it weights — so the one 192 GB MI300X at $1.85 an hour we list answers the wrong question. It rides beside whatever else the accelerator serves; 4-bit saves two tenths of a gigabyte.
Apache 2.0 covers commercial use with the patent grant intact, which matters once forecasts feed something you sell. It was trained on autogluon/chronos_datasets and Salesforce/GiftEvalPretrain, so keep your evaluation series out of both. The card's June 5, 2026 update pushes AWS deployment through AutoGluon-Cloud, pandas DataFrames in and forecasts out in three lines. The design is set out in arXiv:2403.07815 and arXiv:2510.15821.
SAVRN's Notes on chronos-2-synth
The word that matters in this name is synth. Autogluon trained this 119-million-parameter Chronos-2 variant only on synthetic univariate and multivariate series. Memory is not the decision point. At 16-bit the weights are 0.2 GB and it runs in 0.3 GB, and the single 192 GB MI300X that heads our table at $1.85 per hour on-demand would sit mostly empty. Give it a slice of a card that also hosts the models the forecasts feed into.
The license is Apache 2.0, which permits commercial use, modification and redistribution with the notices kept and changes stated, and the weights are open access in safetensors. Follow the publisher's pointer: usage details live with the main Chronos-2 model, and arXiv:2510.15821 describes the method. Our record carries no context length figure, so test the history window on your own series, and decide what synthetic-only training means before it reaches production.
Questions
Which is larger, chronos-2 or chronos-2-synth?
chronos-2 (119M parameters) is larger than chronos-2-synth (119M parameters), by the parameter counts their publishers report.
Which is cheaper to run, chronos-2 or chronos-2-synth?
At 4-bit, chronos-2 fits on 1x MI300X from $1.85 an hour and chronos-2-synth on 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.
Can I use chronos-2 commercially?
Yes. chronos-2 is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.
Can I use chronos-2-synth commercially?
Yes. chronos-2-synth is released under Apache License 2.0. The Apache License 2.0 is a permissive open-source license. It permits commercial use, modification and redistribution. It requires keeping the license and copyright notices and any NOTICE file, stating significant changes, and it includes an express patent grant from contributors.