Prophet
Fast and automated time series forecasting framework by Facebook.
- Status
- Generally available
- Last checked
- Checked · Oct 16, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Prophet is a fast and automated time series forecasting tool developed by Facebook. It's designed to be robust for handling missing data, shifts in trends, and large outliers, making it ideal for business forecasting.
Prophet stands out for its ease of use and robustness in handling real-world data issues like missing values and outliers, making it a go-to tool for business forecasting.
When it fits — and when it doesn’t
A good fit for
Teams needing robust time series analysis with minimal setup and maintenance
Projects requiring handling of missing data and outliers in time series
Look elsewhere if
Real-time or streaming data forecasting applications
Applications requiring complex, non-linear trend modeling beyond Prophet's capabilities
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited flexibility in modeling complex seasonality patterns
Prophet's seasonal components are based on predefined yearly, weekly, and daily cycles which may not capture more nuanced or irregular seasonalities
- 02
Automated parameter tuning can lead to suboptimal models for specialized use cases
The tool's default settings may not be optimal for all types of time series data, requiring manual adjustments that are not always straightforward
- 03
Performance degradation with very large datasets
Prophet can become computationally expensive and slow when dealing with extremely large datasets, limiting its scalability in big data scenarios
- 04
Lack of advanced anomaly detection features
While Prophet handles outliers well, it does not provide built-in mechanisms for identifying or handling anomalies beyond basic outlier correction
What it does well
Handles missing data and outliers effectively
Supports trend changes and seasonality
Automated parameter tuning for ease of use
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up Prophet
Setup steps, common gotchas and what to check after 30 days.