Release
xAI makes Grok 4.5 available on its API
xAI's API release notes record that on July 8, 2026 Grok 4.5, described as a model for coding, agentic tasks, and knowledge work, became available on the xAI API with configurable reasoning effort (low, medium, or high, with high as the default). A later entry, dated July 17, says Grok 4.5 became available in the API console in the EU. The release notes describe a hosted model and do not describe a release of weights. USASI has not tested Grok 4.5.1
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APA style
USASI. (2026, October 13). xAI makes Grok 4.5 available on its API. United States of America Superintelligence. https://unitedstatesofamericasuperintelligence.com/news/xai-releases-grok-4-5/
BibTeX
@misc{usasi_news_xai_releases_grok_4_5,
author = {{USASI}},
title = {xAI makes Grok 4.5 available on its API},
year = {2026},
month = oct,
howpublished = {\url{https://unitedstatesofamericasuperintelligence.com/news/xai-releases-grok-4-5/}},
note = {United States of America Superintelligence. Last updated 2026-10-13}
}The date is when this page was last updated. Add the date you read it if your style needs one.