AI Arena Score is a one-time science and technology series on Kalshi, with markets like “Gemini 3.5 Pro debut arena score?”. The Kalshi Eye archive lists 35 of its markets and has 12 days of daily Parquet files from October 12, 2026 to October 23, 2026 (5 MB), with every order book change and trade.

Venue: Kalshi, series KXARENASCORE
Category: Science and Technology, one-time
Markets: 35 (28 settled, 7 open)
Files: 12 days, October 12, 2026 to October 23, 2026, 5 MB, 405,465 rows
Datasets: Order book (L2, incremental), Order book snapshots (top 10, 1 second), Top of book (every change), Top of book (1-minute bars), Trades

Open AI Arena Score in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Kalshi data page.

Reading the files

Every KXARENASCORE trade on October 23, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-23/series=KXARENASCORE/trades-KXARENASCORE-2026-10-23.parquet'
ORDER BY ts_recv;

To test a strategy on this series, see How to backtest Kalshi markets.

Related Kalshi series

Google Vercel requests share (KXGOOGVREQ): 169 markets, 12 days of files
Moonshot AI Vercel spend share (KXMOONVSPEND): 169 markets, 12 days of files
DeepSeek Vercel requests share (KXDEEPVREQ): 168 markets, 12 days of files
Anthropic Vercel spend share (KXANTHVSPEND): 167 markets, 12 days of files
Anthropic Vercel requests share (KXANTHVREQ): 166 markets, 12 days of files
Open weights AI market share (KXOPENSOURCESHARE): 161 markets, 12 days of files

Figures as of October 24, 2026. All Kalshi series with pages are listed on Kalshi series.