Cisco Released Cisco Time Series Model: Their First Open-Weights Foundation Model based on Decoder-only Transformer Architecture

Cisco and Splunk have introduced the Cisco Time Series Model, a univariate zero shot time series foundation model designed for observability and security metrics. It is released as an open weight checkpoint on Hugging Face under an Apache 2.0 license, and it targets forecasting workloads without task specific fine tuning. The model extends TimesFM 2.0 with an explicit multiresolution architecture that fuses coarse and fine history in one context window.

Why observability needs multiresolution context?

Production metrics are not simple single scale signals. Weekly patterns, long term growth and saturation are visible only at coarse resolutions. Saturation events, traffic spikes and incident dynamics show up at 1 minute or 5 minute resolution. The common time series foundation models work at a single resolution with context windows between 512 and 4096 points, while TimesFM 2.5 extends this to 16384 points. For 1 minute data…