Chronos-Bolt
A Transformer-based time series forecasting model used to estimate and impute missing time series data.
Timeline (last 90 days)
Gemma 4 is used to parse supplier API responses in 13 different formats, and Chronos-Bolt is used to fill in dates with no search records, ultimately producing a flight price calendar.
Chronos-Bolt is an open-weights time series foundation model released by Amazon, based on the T5 architecture, which tokenizes numerical sequences and predicts future values in a manner similar to a language model, supports zero-shot, and can run on CPU.
In the backtest, seen fares alone cover 36% of search dates, the day-of-week baseline covers 41%, and Chronos-Bolt base + baseline covers 41%.
In the backtest, the error for estimated dates (591 of them): day-of-week baseline 18.7%, Chronos-Bolt base + baseline 16.2%.
The Chronos-Bolt small used in the first deployment was actually worse than the simple baseline of "same day of week, most recent weeks".
All Facts (2)
Gemma 4 is used to parse supplier API responses in 13 different formats, and Chronos-Bolt is used to fill in dates with no search records, ultimately producing a flight price calendar.
50%UnverifiedChronos-Bolt is an open-weights time series foundation model released by Amazon, based on the T5 architecture, which tokenizes numerical sequences and predicts future values in a manner similar to a language model, supports zero-shot, and can run on CPU.
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