When a legislative body with access to every vendor on the market concentrates 90% of its AI spending on a single tool, that is not a coincidence — it is a signal.
Capitol Hill staffers were drowning in documents with no fast way out
Congressional offices produce and consume enormous volumes of text daily — legislation, constituent mail, hearing prep, policy research, committee memos. Processing that volume manually is not slow, it is structurally impossible at the pace modern offices operate.
One tool handled nearly everything they needed
Congress’s favorite AI tool? ChatGPT takes a document, a policy question, or a raw constituent email as input and returns a draft, a summary, or a structured analysis in seconds. House staffers used it to write memos, prepare hearing materials, draft social media posts, sort through legislation, and respond to constituents — all inside one interface, without switching tools.
Government and policy teams felt this first, but they are not alone
- Legislative analysts who spend three hours summarizing a 200-page bill before a morning briefing
- Communications directors who need constituent response drafts reviewed and out the door same day
- Policy researchers who track dozens of regulatory documents across multiple active sessions simultaneously
The pattern here matters beyond government: any team where text volume exceeds available human hours is facing the same structural problem Congress just paid $100,580 to solve.
Anthropic got 37 transactions — OpenAI got 798
Anthropic’s Claude finished second with $13,160 across 37 transactions, which means ChatGPT closed roughly 21 times more transactions in the same period from the same buyer pool. Democratic offices outspent Republican offices three to one, suggesting adoption is accelerating unevenly, and the offices that started earlier are already embedded enough to keep renewing.
What teams are actually doing with it
- Paste a bill or policy document, get a plain-language summary in under a minute
- Draft constituent responses at volume without starting from scratch each time
- Prepare background briefs and hearing questions from raw research files
- Generate and iterate on social copy tied to specific legislative events
ChatGPT is available at free, Plus ($20/month), and Team tiers, with enterprise pricing available for larger organizations.
The data here covers only paid accounts and excludes any AI bundled into broader software contracts, so actual adoption is almost certainly higher than the numbers show.
If you want a faster document-heavy alternative, Anthropic’s Claude handles long-context analysis with a larger context window, and Google’s Gemini integrates directly with Workspace if your team already lives in Docs and Drive.
Government AI procurement is choosing sides, and the gap is widening fast
The institutional spending patterns forming right now will be difficult to reverse once procurement cycles lock in vendor relationships.
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