Open-source time series forecasting models

Time series models forecast demand, sales, service load and inventory from historical data. Some work without lengthy training on your data. When choosing, consider the forecast horizon, handling of seasonality and external factors, the license and hardware needs.

12 open model families in this collection.Updated 22 Sep 2026Open the full catalog with filters
Forecasting2024–2026

TimesFM

Google · USA

A ready-made Google forecasting model: forecasts any time series without training on your data.

  • Sales and demand forecasting
  • Purchase and inventory planning
  • Load and traffic forecasting
Sizes
200M – 500M
Hardware
from: Laptop
Commercial use with conditionsDetails
Forecasting2025–2026

TiRex

NXAI · Austria

A compact forecasting model on the xLSTM architecture, a leader in open benchmarks despite its small size. Runs fast on a regular CPU.

  • Demand and sales forecasting
  • Energy consumption forecasting
  • Forecasts on modest hardware and on site
Sizes
about 35M to 82M
Hardware
from: Laptop
Commercial use allowedDetails
Forecasting2024–2026

Timer (THUML)

THUML, Tsinghua University · China

A compact forecasting foundation model from the Tsinghua lab: trained on a large set of diverse series and fine-tunable on your own data.

  • Forecasting demand and load
  • Forecasting sensor readings on the shop floor
  • Fine-tuning forecasts on your own history
Sizes
84M (timer-base)
Hardware
from: Laptop
Commercial use allowedDetails
ForecastingGGUF2025–2026

Toto

Datadog · USA

A Datadog forecasting model trained on server and application metrics. Especially strong for IT monitoring: load, latency, errors.

  • Server load forecasting
  • Anomaly detection in metrics
  • Capacity planning
Sizes
4M – 2.5B
Hardware
from: Laptop
Commercial use allowedDetails
ForecastingGGUF2024–2025

Chronos

Amazon · USA

Amazon forecasting models, among the most downloaded. Chronos-2 takes external factors into account: prices, promotions, weather.

  • Demand forecasting with promotions and prices
  • Inventory planning
  • Forecasting revenue and customer flow
Sizes
8M – 710M
Hardware
from: Laptop
Commercial use allowedDetails
ForecastingGGUF2024–2025

Moirai

Salesforce · USA

Salesforce's universal forecasting model for series with different frequencies and many variables. Weights are open for research only.

  • Research forecasting pilots
  • Comparison with other forecasting models
  • Forecasts across many related series
Sizes
11M – 311M
Hardware
from: Laptop
Non-commercial onlyDetails
Finance2025

Kronos

Tsinghua University (NeoQuasar) · China

A foundation model for market candlestick data: trained on data from more than 45 exchanges, it forecasts prices and volumes. The largest version, large, is not open.

  • Forecasting candlesticks and trading volumes
  • Volatility estimation
  • A base for fine-tuning on your own series
Sizes
4.1M – 102M
Hardware
from: Laptop
Commercial use allowedDetails
Forecasting2025

Sundial

THUML, Tsinghua University · China

A forecasting model that returns a set of possible scenarios rather than a single line — useful when you need a range for demand or load, not one number.

  • Forecasting demand with a range of values
  • Planning stock while accounting for spread
  • Forecasting load on services and staff
Sizes
128M (sundial-base)
Hardware
from: Laptop
Commercial use allowedDetails
Forecasting2024

MOMENT

Auton Lab, Carnegie Mellon University · USA

A foundation model for numeric series: one engine is used for forecasting, anomaly detection, filling gaps and classification.

  • Forecasting demand and load
  • Detecting anomalies in sensor readings and metrics
  • Filling gaps in historical data
Sizes
about 40M – 385M
Hardware
from: Laptop
Commercial use allowedDetails
Forecasting2024

Granite Time Series (TinyTimeMixers, PatchTST)

IBM Research · USA

Tiny forecasting models from IBM: they run on an ordinary CPU and sit next to the business system without a separate GPU server.

  • Forecasting sales and warehouse stock
  • Forecasting energy use and equipment load
  • Fast forecasts right on the company server
Sizes
very small: TinyTimeMixers have about 1M parameters
Hardware
from: Laptop
Commercial use allowedDetails
Forecasting2024

Time-MoE

The Time-MoE team · not disclosed

A forecasting model with a sparse architecture: only part of the network runs at each step, so it stays fast at a small size.

  • Forecasting sales and stock levels
  • Forecasting load on services and staff
  • Planning purchases from history
Sizes
50M and 200M
Hardware
from: Laptop
Commercial use allowedDetails
ForecastingNot maintained2024

Lag-Llama

ServiceNow, Mila and partners · Canada

One of the first open out-of-the-box forecasting models. Tiny, gives a probabilistic forecast, now behind Chronos and TimesFM.

  • Probabilistic sales forecast
  • Quick forecasting pilots
  • Baseline model for comparison
Sizes
2.4M
Hardware
from: Laptop
Commercial use allowedDetails

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