Watchtower
Watchtower tracks when AI companies change their safety policies — and when they break them.
Released Grok 4 System Card and new changes to RMF, including immediate quiet redactions
xAI
Aug 22, 2025
On August 20th, xAI released a new version of its risk management framework as well as the model card for Grok 4. On August 22nd, xAI quietly revised the model card for Grok 4 to retract most mentions of the UK AI Security Institute.
OpenAI
Aug 18, 2026
OpenAI updated its Model Spec, the document outlining intended model behavior
xAI
Aug 17, 2026
xAI updated Grok 4.6's model card after release. A changelog was included.
Aug 14, 2026
Google updated its Gemini 3.7 Flash model card after publication, making changes to language in the “Key Results for Gemini 3.7 Flash” column in the Frontier Safety Assessment section
OpenAI
Aug 3, 2026
OpenAI updated its system card for two of its models: GPT 5.6 and GPT Live.
xAI
Jul 20, 2026
xAI made changes throughout the model card for Grok 4.5, including some that appear to be persistent errors
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