TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 20, 10:00 AM EST
Kalshi
This event determines which AI coding model achieves the top ranking on the LM Code Arena Leaderboard on July 20, 2026 at 10:00 AM ET. The leaderboard measures how well different large language models perform at code generation and related programming tasks.
Resolution is based on the #1 ranked model on the LM Code Arena Leaderboard as of July 20, 2026 at 10:00 AM ET. When models are tied for the top position, the publisher's official tie-breaking methodology applies; if no such methodology exists, all tied models share the highest rank. When multiple models are tied for a given rank, each tied model's contract resolves to $1 divided by the number of tied models, rounded down.
Prediction market odds often diverge from traditional analyst forecasts because they reflect real-money incentives and crowd wisdom rather than individual expert opinion. In this market, traders betting on the outcome face direct financial consequences for accuracy, which can surface insights faster than published research reports. Analyst predictions tend to lag behind market prices when new technical benchmarks or product announcements shift expectations. Comparing the two reveals where consensus is strongest and where contrarian views are gaining traction among informed traders.
On Kalshi, this market is priced through a continuous order-book mechanism where buyers and sellers submit bids and offers for each coding AI outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each contract reflects the collective probability assigned by active traders, ranging from near-zero to near-100. As new information arrives—such as model performance metrics or competitive announcements—traders adjust their positions, causing prices to shift. Tighter spreads indicate higher confidence and liquidity, while wider spreads suggest uncertainty or lower trading interest in a particular outcome.
This market resolves around Jul 20, 2026, at which point the outcome is confirmed based on credible public reporting of coding AI performance during the specified week. The determination focuses on verified benchmarks, official announcements, and widely recognized assessments from reputable sources in the AI community. Once the event period closes and results are documented, the market settles to reflect which system achieved top status according to those standards. Traders holding positions in the winning outcome receive their payouts shortly after verification is complete.
Major price drivers include new model releases or version updates from leading AI labs, published benchmark results comparing coding capabilities, and announcements of partnerships or integrations that boost a system's visibility. Technical demonstrations, GitHub activity metrics, or adoption announcements can shift trader sentiment rapidly. Competitive announcements from rival teams may also trigger repricing as market participants reassess relative standing. Media coverage highlighting performance gaps or breakthroughs serves as another catalyst. Real-time monitoring of AI community forums, research publications, and official company statements helps traders anticipate and react to these developments before resolution.