Staffers in the US Senate are now allowed to use three major AI chatbots for official business.
In a memo sent to Senate offices on Monday and obtained by Business Insider, the Senate Sergeant at Arms’ Chief Information Officer approved the use of three major AI chatbots using Senate data: OpenAI’s ChatGPT, Google Gemini, and Microsoft Copilot.
The existence of the memo was first reported by The New York Times.
The memo specifically highlighted Copilot, noting that it’s integrated into the Microsoft 365 tools that Senate staff already use.
The memo said that the tool may be used for “drafting and editing documents, summarizing information, preparing talking points and briefing material, and conducting research and analysis.”
It is not clear why the Senate did not authorize Claude, the AI chatbot developed by Anthropic. A message on an internal Senate IT website, viewed by Business Insider, said that Claude was among several AI tools that are still under evaluation.
The House has already approved the use of ChatGPT, Copilot, Gemini, and Claude for official use, according to the POPVOX Foundation, a nonprofit focused on modernizing Congress.
There’s some indication that Senate staff may have already been using AI tools on the job, but unofficially.
Several senators told Business Insider in late 2025 that they were fine with their staff using AI for tasks like research and drafting talking points, though some offices were still developing their own internal guidelines.
“We certainly don’t discourage it,” Democratic Sen. Chris Murphy of Connecticut said at the time.
Read the full memo sent to Senate staffers on Monday:
Read the original article on Business Insider
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