SAVRN Model Hub · Comparisons
chronos-2 vs Toto-Open-Base-1.0
Chronos-2 has 119M parameters and Toto-Open-Base-1.0 has 151M 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 Toto-Open-Base-1.0 about 0.4 GB (1x MI300X from $1.85 an hour).
| Field | chronos-2 amazon/chronos-2 | Toto-Open-Base-1.0 Datadog/Toto-Open-Base-1.0 |
|---|---|---|
| Publisher | Amazon | Datadog |
| Task | Time series forecasting | Time series forecasting |
| Modality | Time series | Time series |
| Parameters, as reported | 119M parameters | 151M parameters |
| Architecture | Chronos2Model | Not stated |
| Library | chronos-forecasting | transformers |
| Context length | Not stated | Not stated |
| Repository size | 477.9 MB | 605.7 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 | 0.4 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 | 29ec3766d36d | 0411ceb27bdf |
| Downloads reported by the hub | 22.4M | 69.2k |
| Last observed | 2026-09-18 | 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.
Other Reported Results
These results are listed for each model on its own, because the conditions needed to compare them are not stated or do not match. Two results that leave a condition blank are not assumed to share it.
Toto-Open-Base-1.0
| Benchmark | Conditions | Result | Reported by | Revision | Date |
|---|---|---|---|---|---|
| BOOM | Task time-series-forecastingMetric CRPSComparison conditions not established | 0.375 | Datadog Publisher reported |
Evaluated revision not stated | — |
| BOOM | Task time-series-forecastingMetric MASEComparison conditions not established | 0.617 | Datadog Publisher reported |
Evaluated revision not stated | — |
| GIFT-Eval | Task time-series-forecastingMetric CRPSComparison conditions not established | 0.517 | Datadog Publisher reported |
Evaluated revision not stated | — |
| GIFT-Eval | Task time-series-forecastingMetric MASEComparison conditions not established | 0.75 | Datadog Publisher reported |
Evaluated revision not stated | — |
SAVRN's Notes on chronos-2
Power draw, inlet temperature, water meter reads: a facility produces time series all day, and this Amazon model forecasts them. It reads related series and covariates together and returns multi-step quantile forecasts without training on your data first. At 119M parameters it needs 0.3 GB of memory at 16-bit, and the cheapest place we price it, a single 192 GB MI300X at $1.85 per hour on-demand, is far more card than it needs, so share the card.
Apache 2.0 covers commercial use, modification and redistribution, with the duty to keep notices and state significant changes, and it carries an express patent grant from contributors. The page lists no context length, so confirm how many past points it reads per series before sizing the pipeline. Training data is autogluon/chronos_datasets and Salesforce/GiftEvalPretrain, and the Chronos-2 paper, arXiv:2510.15821, is the design reference; read it first.
Questions
Which is larger, chronos-2 or Toto-Open-Base-1.0?
Toto-Open-Base-1.0 (151M parameters) is larger than chronos-2 (119M parameters), by the parameter counts their publishers report.
Which is cheaper to run, chronos-2 or Toto-Open-Base-1.0?
At 4-bit, chronos-2 fits on 1x MI300X from $1.85 an hour and Toto-Open-Base-1.0 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 Toto-Open-Base-1.0 commercially?
Yes. Toto-Open-Base-1.0 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.