AI cost-efficiency frontier is a science and technology series on Kalshi, with markets like “Which AI companies will have a Pareto efficient model at the end of 2026?”. The Kalshi Eye archive lists 18 of its markets and has 10 days of daily Parquet files from October 15, 2026 to October 24, 2026 (2 MB), with every order book change and trade.

Venue: Kalshi, series KXAIPARETO
Category: Science and Technology
Markets: 18 (0 settled, 18 open)
Files: 10 days, October 15, 2026 to October 24, 2026, 2 MB, 206,984 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 cost-efficiency frontier 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 KXAIPARETO 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=KXAIPARETO/trades-KXAIPARETO-2026-10-24.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, 13 days of files
Moonshot AI Vercel spend share (KXMOONVSPEND): 169 markets, 13 days of files
Anthropic Vercel spend share (KXANTHVSPEND): 167 markets, 13 days of files
Year-end top LLM (KXLLM1): 119 markets, 13 days of files
SpaceX launches (KXSPACEXCOUNT): 42 markets, 13 days of files
Waymo new city (KXWAYMOCITY): 39 markets, 13 days of files

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