Show HN: How Stale Is Your AI? Release age and training cutoff for 20 models (stale.jock.pl)

A new resource has been launched that tracks the relevance of various AI models by documenting their release dates and training cutoff dates. The webpage provides crucial information for 20 prominent models from eight different labs, allowing users to see how much of the latest data each model has access to. For example, the Llama 4 model from Meta will be released on April 5, 2025, but it stops training in August 2024—indicating it could be significantly outdated upon launch. This tool is highly significant for the AI/ML community as it emphasizes the importance of understanding how current a model is when making decisions based on its outputs. While models can be released with flashy headlines, the gap between the release date and the training cutoff reveals how outdated their information may be. Many users may assume that a newly launched model is up-to-date, but without this resource, they risk relying on models that lack recent knowledge, potentially leading to misinformation.