Which AI company will have the best coding model on Dec 31, 2026?

Prediction markets currently give a 7% probability that Which AI company will have the best coding model on Dec 31, 2026?. This contract trades at 7¢ on Kalshi, closing December 31, 2026. This market prices xAI's Grok as a 7% favorite to lead LiveBench's coding rankings by year-end 2026, but the extraordinarily high implied yield of 1,876% on the Yes side signals severe illiquidity and likely mispricing rather than genuine conviction.

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7¢
Bid/Ask 6/7¢·Spread 1¢·Vol $306·OI $63,792.08·Closes Dec 31, 2026·254d remaining
KXCODINGMODEL-26DEC-XAI
7-day price14 snapshots · 5 regime
8¢6¢ current
Apr 104¢Apr 18

Analysis

4d ago

This market prices xAI's Grok as a 7% favorite to lead LiveBench's coding rankings by year-end 2026, but the extraordinarily high implied yield of 1,876% on the Yes side signals severe illiquidity and likely mispricing rather than genuine conviction. With only $18.17 in daily volume against $63k open interest and a tight 1¢ spread, the market lacks depth to support such extreme yield calculations, suggesting the 7¢ price may not reflect true probability. The recent 40% price appreciation from 5¢ to 7¢ over seven days, combined with a moderate cliff risk index of 13 and 259 days to resolution, indicates this is a speculative position in a thin market where large moves can occur on minimal trading activity.

Cross-venue

Also on polymarket at ¢

View counterpart →Match confidence 0.78Close-time delta 5895h

Resolution rules

If xAI has the top-ranked model on LiveBench.ai ranked by "Coding Average" on Dec 31, 2026, then the market resolves to Yes.

Indicators

IY (Yes) 2253.1%
IY (No) 9.2%
Adj IY 1127%
CRI 16
Overround -0.1%
▶ Full indicator table (5)
IndicatorValue
IY (Yes)2253.1%
IY (No)9.2%
Adj IY1127%
CRI16
Overround-0.1%

Regime

Label
neutral
Score
0.409
Spread
1¢
Computed
4/21/2026, 7:58:06 PM
Observability lowEvent type scientific
Indicators computed 4/21/2026, 7:53:17 PM

Trade

View on kalshisf trade KXCODINGMODEL-26DEC-XAI yes 100

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