Congress’s favorite AI tool? ChatGPT
OpenAI's ChatGPT has emerged as the dominant AI tool in the U.S. Congress, capturing approximately 90% of all AI tool spending by House offices, committees, and institutional accounts.
Intelligence analysis by Gemini 2.5 Flash

According to a CNBC report based on House disbursement records, Congress spent over $100,000 on ChatGPT out of a total of $113,740 on AI tools in the year ending March 31. Anthropic's Claude was a distant second, while Democratic offices outspent Republican offices on AI purchases by a 3:1 margin.
Imagine Congress, the grown-ups who make rules for our country, are getting a super-smart helper robot named ChatGPT. They're spending the most money on this robot to help them with their homework, like writing notes, understanding big rulebooks, and even writing messages to people. It's like having a really fast assistant who can read and write super quickly to help them do their jobs better.
Analysis
OpenAI's Congressional Dominance
The recent report from CNBC, based on House disbursement records, reveals a significant preference for OpenAI's ChatGPT within the U.S. Congress. During the year ending March 31, OpenAI accounted for roughly 90% of all spending on AI tools by House offices, committees, and institutional accounts. This translates to approximately $100,580 spent across 798 transactions on ChatGPT, out of a total AI expenditure of at least $113,740. This overwhelming market share underscores OpenAI's current lead in providing AI solutions to governmental bodies, far surpassing competitors like Anthropic's Claude, which secured a mere $13,160 across 37 transactions.
This spending pattern also highlights a notable partisan divide, with Democratic offices spending three times more on AI purchases ($54,165) compared to Republican offices ($15,782). These figures, however, do not account for free AI accounts or AI tools bundled into broader software contracts, suggesting the actual adoption rate could be even higher and more widespread across the legislative branch.
Practical Applications and Efficiency Gains
Congressional staffers are leveraging ChatGPT and other AI tools for a diverse range of tasks aimed at enhancing efficiency and productivity. These applications include drafting memos, summarizing and analyzing complex legislation, and preparing materials for congressional hearings. The ability of AI to quickly process and distill large volumes of information is particularly valuable in the fast-paced legislative environment, where timely access to accurate summaries of policy research is crucial.
Beyond internal documentation and research, AI is also being deployed for external communications. Staffers are using these tools to respond to constituents more efficiently and even to draft social media posts, streamlining the process of public engagement and outreach. This integration of AI into daily operations suggests a strategic move towards modernizing legislative workflows and potentially improving the responsiveness of congressional offices to both internal demands and public inquiries.
Implications for AI Policy and Government Tech
The widespread adoption of AI tools by Congress carries significant implications for both future AI policy and the broader landscape of government technology. As lawmakers and their staff become more familiar with the capabilities and limitations of generative AI through direct use, their understanding will inevitably inform the development of new regulations and ethical guidelines for the technology. This hands-on experience could lead to more nuanced and practical legislative approaches to AI governance, addressing concerns around data privacy, algorithmic bias, and security.
Furthermore, Congress's embrace of AI sets a precedent for other government agencies and departments, potentially accelerating AI adoption across the public sector. The reliance on a single dominant provider like OpenAI also raises questions about vendor lock-in, competition, and the diversification of AI capabilities within government. This trend underscores the critical need for robust procurement strategies and ongoing evaluation of AI tools to ensure security, reliability, and equitable access to advanced technological resources across all branches of government.
Key points
- OpenAI's ChatGPT accounts for approximately 90% of AI tool spending by U.S. House offices, committees, and institutional accounts.
- Congress spent over $100,000 on ChatGPT out of a total of $113,740 on AI tools in the year ending March 31.
- Congressional staffers use AI for tasks such as writing memos, summarizing legislation, responding to constituents, and drafting social media posts.
- Democratic offices spent three times more on AI tools than Republican offices.
- The reported spending figures exclude free AI accounts or AI bundled into broader software contracts.
The adoption of AI tools like ChatGPT could significantly boost the efficiency of congressional operations, allowing staffers to process information faster, respond to constituents more effectively, and streamline legislative drafting. This could lead to more informed decision-making and a more responsive government.
Over-reliance on a single AI provider like OpenAI could create vendor lock-in and potential security vulnerabilities, while the use of AI for sensitive tasks raises concerns about data privacy, accuracy, and the potential for algorithmic bias in legislative processes or constituent communications.


