---
title: t0-beta playground
emoji: 📈
colorFrom: green
colorTo: gray
sdk: static
app_file: index.html
pinned: false
license: apache-2.0
short_description: Try t0-beta on example series, forecasting in your browser
models:
  - theforecastingcompany/t0-beta
  - theforecastingcompany/t0-beta-onnx-int8
  - theforecastingcompany/t0-beta-onnx-fp16
---

# t0-beta playground

A browser playground for t0-beta, the open-weights time-series foundation model from The Forecasting Company. Visitors pick an example series, move the cutoff, choose a horizon and a model precision, and compare the forecast with the held-out actuals.

Inference runs locally in the browser with ONNX Runtime Web. Two ONNX exports are offered: int8 (~269 MB, the default) and fp16 (~512 MB). The weights are downloaded from Hugging Face once per export, cached separately, and checked against a pinned SHA-256 before a session is created; no series data leaves the page.

Four example series are bundled, all exports of Retrocast example datasets: US housing transactions, Medicam, Rohlik orders, and electricity load.

Backtesting on private data, covariates, and the hosted models are available in Retrocast at https://app.retrocast.com. Model details and weights are on the model card at https://huggingface.co/theforecastingcompany/t0-beta.