SAVRN
Search Contact SAVRN

Open-weight model · Time series forecasting

Toto-2.0-4m

by Datadog Datadog/Toto-2.0-4m

Toto (Time Series Optimized Transformer for Observability) is a family of time series foundation models for multivariate forecasting developed by Datadog.

Parameters4M
Context
Weights16.6 MB
Licenseapache-2.0
AccessOpen weights
Monthly Downloads173.3k

Runs On

What it takes to serve Toto-2.0-4m (4M parameters): the memory its weights need at each precision, and the cheapest way to rent enough data-center GPUs to hold them.

PrecisionWeightsMemory neededCheapest setupPer hourAlso fits
16-bit 0.0 GB 0.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
8-bit 0.0 GB 0.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00
4-bit 0.0 GB 0.0 GB 1x MI300X (192 GB)
Vultr
$1.85 1x H100 $1.99 · 1x MI325X $2.00

Memory is the weights at that precision plus 20% for the runtime and a short context; a long context needs more. Prices are the lowest on-demand hourly rates in the SAVRN Index, read Sep 18, 2026.

Model Card

By Datadog, published under apache-2.0, revision 8306a9801cf9.

Toto (Time Series Optimized Transformer for Observability) is a family of time series foundation models for multivariate forecasting developed by Datadog. Toto 2.0 is the current generation, featuring u-μP-scaled transformers ranging from 4m to 2.5B parameters, all trained from a single recipe. Forecast quality improves reliably with parameter count across the family.

The family sets a new state of the art on three forecasting benchmarks: BOOM, our observability benchmark; GIFT-Eval, the standard general-purpose benchmark; and the recent contamination-resistant TIME benchmark.

Performance

Quick Start

Inference code is available on GitHub.

Installation

pip install toto-models

Inference Example

Read the full model card (457 words)

Identity and Version

Repository
Datadog/Toto-2.0-4m
Publisher
Datadog
Task
Time series forecasting
Modality
Time series
Library
pytorch
Parameters
4M parameters
Languages
Not stated by the source
Revision
8306a9801cf98c0f5ffe4b2dcc8f496e616d84d9
First published
2026-04-14
Last updated
2026-06-04

Files and Weights

7 files, 17.7 MB in total. The weights are 1 file totalling 16.6 MB in safetensors.

Weights1 file · 16.6 MB
Configuration1 file · 592 B
Documentation1 file · 7.3 KB
Other3 files · 1.1 MB
Repository1 file · 1.7 KB
Every file
FileTypeSizeSHA-256
model.safetensorsWeights16.6 MB 316660d5afb4
config.jsonConfiguration592 B
README.mdDocumentation7.3 KB
assets/architecture.pngOther436.7 KB 973196289f60
assets/pareto.pngOther302.2 KB 756a05902735
figures/architecture.pngOther396.1 KB d17a304f234c
.gitattributesRepository1.7 KB

License and Download

License
apache-2.0
Access
Open weights, no gate
Download size
16.6 MB
Download from Datadog

Released by Datadog through its official repository on Hugging Face. Read the license.

Built From

Evaluations

Each result is shown as reported, with the conditions its reporter stated. None is a SAVRN measurement. A comparison lines two results up only when their configuration, unit and setup are all stated and identical.

BenchmarkConditionsResultReported byRevisionDate
BOOM Task time-series-forecastingMetric CRPSComparison conditions not established 0.377 Datadog
Publisher reported
Evaluated revision not stated
BOOM Task time-series-forecastingMetric MASEComparison conditions not established 0.624 Datadog
Publisher reported
Evaluated revision not stated
GIFT-Eval Task time-series-forecastingMetric CRPSComparison conditions not established 0.524 Datadog
Publisher reported
Evaluated revision not stated
GIFT-Eval Task time-series-forecastingMetric MASEComparison conditions not established 0.757 Datadog
Publisher reported
Evaluated revision not stated
TIME Task time-series-forecastingMetric CRPSComparison conditions not established 0.574 Datadog
Publisher reported
Evaluated revision not stated
TIME Task time-series-forecastingMetric MASEComparison conditions not established 0.689 Datadog
Publisher reported
Evaluated revision not stated

Memory Requirements

PrecisionWeights in memory
As published16.6 MB
16-bit0.0 GB
8-bit0.0 GB
4-bit0.0 GB

Weights only, from the published parameter count; the key-value cache and runtime add to this.

Compare Toto-2.0-4m

Questions About Toto-2.0-4m

How much GPU memory does Toto-2.0-4m need?

About 0 GB at 16-bit and 0 GB at 4-bit: the weights (4M parameters) plus a working margin. A long context needs more.

What is the cheapest GPU to run Toto-2.0-4m on?

At 16-bit, 1x MI300X from $1.85 an hour; at 4-bit, 1x MI300X from $1.85 an hour, at the lowest on-demand prices the SAVRN Index lists.

Can I use Toto-2.0-4m commercially?

Yes. Toto-2.0-4m 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.

Similar Models

Model · Time series forecasting

Kronos-mini

ShiYu

Kronos is the first open-source foundation model for financial candlesticks (K-lines), trained on data from over 45 global exchanges. It is designed to handle the unique, high-noise characteristics of financial data. Kronos is a family of decoder-only foundation models, pre-trained specifically for the "language" of financial markets—K-line sequences. It leverages a novel two-stage framework: 1. A specialized tokenizer first quantizes continuous, multi-dimensional K-line data (OHLCV) into hierarchical discrete tokens. 2. A large, autoregressive Transformer is then pre-trained on these tokens, enabling it to serve as a unified model for diverse quantitative tasks. The success of large-scale…

Open weights mit 4M parameters

Model · Time series forecasting

Kronos-Tokenizer-2k

ShiYu

Kronos is the first open-source foundation model for financial candlesticks (K-lines), trained on data from over 45 global exchanges. It is designed to handle the unique, high-noise characteristics of financial data. Kronos is a family of decoder-only foundation models, pre-trained specifically for the "language" of financial markets—K-line sequences. It leverages a novel two-stage framework: 1. A specialized tokenizer first quantizes continuous, multi-dimensional K-line data (OHLCV) into hierarchical discrete tokens. 2. A large, autoregressive Transformer is then pre-trained on these tokens, enabling it to serve as a unified model for diverse quantitative tasks. The success of large-scale…

Open weights mit 4M parameters torch

Model · Time series forecasting

Kronos-Tokenizer-base

ShiYu

Kronos is the first open-source foundation model for financial candlesticks (K-lines), trained on data from over 45 global exchanges. It is designed to handle the unique, high-noise characteristics of financial data. Kronos is a family of decoder-only foundation models, pre-trained specifically for the "language" of financial markets—K-line sequences. It leverages a novel two-stage framework: 1. A specialized tokenizer first quantizes continuous, multi-dimensional K-line data (OHLCV) into hierarchical discrete tokens. 2. A large, autoregressive Transformer is then pre-trained on these tokens, enabling it to serve as a unified model for diverse quantitative tasks. The success of large-scale…

Open weights mit 4M parameters pytorch

Model · Time series forecasting

granite-timeseries-ttm-r3

IBM Granite

Building on top of TTM-R1 and TTM-R2, we introduce the next generation of TinyTimeMixer under the Granite time-series foundation model family — Granite-TTM-R3. This release incorporates several novel tiny-neural architectural innovations designed to push the limits of accuracy in high-speed forecasting, a critical requirement for real-world production deployments. Granite-TTM-R3 is a family of pretrained models supporting multiple real-world forecasting scenarios: - Zero-shot forecasting across unseen datasets - Few-shot adaptation effective with as few as ~1K samples - Full fine-tuning for domain-specific optimization - Multivariate time-series forecasting - Exogenous / control variable…

Open weights apache-2.0 1M parameters

Model · Time series forecasting

granite-timeseries-ttm-r2

IBM Granite

TinyTimeMixers (TTMs) are compact pre-trained models for Multivariate Time-Series Forecasting, open-sourced by IBM Research. With model sizes starting from 1M params, TTM introduces the notion of the first-ever “tiny” pre-trained models for Time-Series Forecasting. The paper describing TTM was accepted at NeurIPS 24. TTM outperforms other models demanding billions of parameters in several popular zero-shot and few-shot forecasting benchmarks. TTMs are lightweight forecasters, pre-trained on publicly available time series data with various augmentations. TTM provides state-of-the-art zero-shot forecasts and can easily be fine-tuned for multi-variate forecasts with just 5% of the training…

Open weights apache-2.0 805,280 parameters granite-tsfm

Model · Time series forecasting

granite-timeseries-ttm-r1

IBM Granite

TinyTimeMixers (TTMs) are compact pre-trained models for Multivariate Time-Series Forecasting, open-sourced by IBM Research. With less than 1 Million parameters, TTM (accepted in NeurIPS 24) introduces the notion of the first-ever “tiny” pre-trained models for Time-Series Forecasting. TTM outperforms several popular benchmarks demanding billions of parameters in zero-shot and few-shot forecasting. TTMs are lightweight forecasters, pre-trained on publicly available time series data with various augmentations. TTM provides state-of-the-art zero-shot forecasts and can easily be fine-tuned for multi-variate forecasts with just 5% of the training data to be competitive. Refer to our paper for…

Open weights apache-2.0 805,280 parameters granite-tsfm