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t0-gamma

Model Oct 15, 2026

The Forecasting Company's approximately 256M-parameter open-weight model for probabilistic time-series forecasts with historical and known-future covariates.

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t0-gamma is the third public model in the t0 family. It produces probabilistic forecasts for numerical time series, including multiple related variates and known-future inputs such as calendar features. Its architecture has approximately 256 million parameters and a head predicting 21 quantile levels.

The weights are Apache-2.0 licensed. Local use requires tfc-t0 version 0.6.0 or newer with the PyTorch or MLX extra. The author warns that earlier versions can load the checkpoint successfully while using incompatible numerical conventions, silently degrading forecasts. Reported benchmark improvements should be checked against backtests on the user’s own data.