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TimesFM (Time Series Foundation Model) is a pretrained time-series foundation model developed by Google Research for time-series forecasting.

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# TimesFM

TimesFM (Time Series Foundation Model) is a pretrained time-series foundation
model developed by Google Research for time-series forecasting.

*   Paper:
    [A decoder-only foundation model for time-series forecasting](https://arxiv.org/abs/2310.10688),
    ICML 2024.
*   All checkpoints:
    [TimesFM Hugging Face Collection](https://huggingface.co/collections/google/timesfm-release-66e4be5fdb56e960c1e482a6).
*   [Google Research blog](https://research.google/blog/a-decoder-only-foundation-model-for-time-series-forecasting/).
*   TimesFM in Google 1P Products:
    *   [BigQuery ML](https://cloud.google.com/bigquery/docs/timesfm-model): Enterprise level SQL queries for scalability and reliability.
    *   [Google Sheets](https://workspaceupdates.googleblog.com/2026/02/forecast-data-in-connected-sheets-BigQueryML-TimesFM.html): For your daily spreadsheet. 
    *   [Vertex Model Garden](https://pantheon.corp.google.com/vertex-ai/publishers/google/model-garden/timesfm): Dockerized endpoint for agentic calling.

This open version is not an officially supported Google product.

**Latest Model Version:** TimesFM 2.5

**Archived Model Versions:**

-   1.0 and 2.0: relevant code archived in the sub directory `v1`. You can `pip
    install timesfm==1.3.0` to install an older version of this package to load
    them.
## Update - July 2, 2026

Updated PyPI to `timesfm=2.0.2`. See [Install](https://github.com/google-research/timesfm#from-pypi).

## Update - Apr. 9, 2026

Added fine-tuning example using HuggingFace Transformers + PEFT (LoRA) — see
[`timesfm-forecasting/examples/finetuning/`](timesfm-forecasting/examples/finetuning/).
Also added unit tests (`tests/`) and incorporated several community fixes.

Shoutout to [@kashif](https://github.com/kashif) and [@darkpowerxo](https://github.com/darkpowerxo).

## Update - Mar. 19, 2026

Huge shoutout to [@borealBytes](https://github.com/borealBytes) for adding the support for [AGENTS](https://github.com/google-research/timesfm/blob/master/AGENTS.md)! TimesFM [SKILL.md](https://github.com/google-research/timesfm/tree/master/timesfm-forecasting) is out.

## Update - Oct. 29, 2025

Added back the covariate support through XReg for TimesFM 2.5.

## Update - Sept. 15, 2025

TimesFM 2.5 is out!

Comparing to TimesFM 2.0, this new 2.5 model:

-   uses 200M parameters, down from 500M.
-   supports up to 16k context length, up from 2048.
-   supports continuous quantile forecast up to 1k horizon via an optional 30M
    quantile head.
-   gets rid of the `frequency` indicator.
-   has a couple of new forecasting flags.

Since the Sept. 2025 launch, the following improvements have been completed:

1.  ✅ Flax version of the model for faster inference.
2.  ✅ Covariate support via XReg (see Oct. 2025 update).
3.  ✅ Documentation, examples, and agent skill (see `timesfm-forecasting/`).
4.  ✅ Fine-tuning example with LoRA via HuggingFace Transformers + PEFT (see `timesfm-forecasting/examples/finetuning/`).
5.  ✅ Unit tests for core layers, configs, and utilities (see `tests/`).

### Install

#### From `PyPI`

```shell
# Install the package with torch
pip install timesfm[torch]
# Or with Flax
pip install timesfm[flax]
# And when XReg is needed
pip install timesfm[xreg]
```

#### Local Install

1.  Clone the repository:
    ```shell
    git clone https://github.com/google-research/timesfm.git
    cd timesfm
    ```

2.  Create a virtual environment and install dependencies using `uv`:
    ```shell
    # Create a virtual environment
    uv venv
    
    # Activate the environment
    source .venv/bin/activate
    
    # Install the package in editable mode with torch
    uv pip install -e .[torch]
    # Or with flax
    uv pip install -e .[flax]
    # And when XReg is needed
    uv pip install -e .[xreg]
    ```

3. [Optional] Install your preferred `torch` / `jax` backend based on your OS and accelerators
(CPU, GPU, TPU or Apple Silicon).:

-   [Install PyTorch](https://pytorch.org/get-started/locally/).
-   [Install Jax](https://docs.jax.dev/en/latest/installation.html#installation)
    for Flax.

### Code Example

```python
import torch
import numpy as np
import timesfm

torch.set_float32_matmul_precision("high")

model = timesfm.TimesFM_2p5_200M_torch.from_pretrained("google/timesfm-2.5-200m-pytorch")

model.compile(
    timesfm.ForecastConfig(
        max_context=1024,
        max_horizon=256,
        normalize_inputs=True,
        use_continuous_quantile_head=True,
        force_flip_invariance=True,
        infer_is_positive=True,
        fix_quantile_crossing=True,
    )
)
point_forecast, quantile_forecast = model.forecast(
    horizon=12,
    inputs=[
        np.linspace(0, 1, 100),
        np.sin(np.linspace(0, 20, 67)),
    ],  # Two dummy inputs
)
point_forecast.shape  # (2, 12)
quantile_forecast.shape  # (2, 12, 10): mean, then 10th to 90th quantiles.
```

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