Humanity's Last Exam is a one-time science and technology series on Kalshi, with markets like “Will any LLM score at least 90% on Humanity's Last Exam before Dec 31, 2026?”. The Kalshi Eye archive lists 17 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (5 MB), with every order book change and trade.

Venue: Kalshi, series KXLASTEXAM
Category: Science and Technology, one-time
Markets: 17 (0 settled, 17 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 5 MB, 567,663 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 Humanity's Last Exam 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 KXLASTEXAM trade on October 24, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-24/series=KXLASTEXAM/trades-KXLASTEXAM-2026-10-24.parquet'
ORDER BY ts_recv;

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

Related Kalshi series

Open weights AI market share (KXOPENSOURCESHARE): 161 markets, 13 days of files
Top text to speech AI (KXSPEECHAI): 131 markets, 13 days of files
Top Chinese AI (KXCHINAAI): 129 markets, 13 days of files
Token usage (KXTOKENUSE): 123 markets, 11 days of files
Top open source intelligence AI (KXOPENINTAI): 119 markets, 13 days of files
AI Coding (KXTECHRANKLISTAICODE): 116 markets, 13 days of files

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