SimpleFunctions
4 source contracts·Kalshi 4·refreshed just now·Closes Dec 31, 2026 · 103d

Will AI be in the “Word of the Year” as designated by Merriam-Webster in 2026

Liquidity-weighted aggregate sits at 8% across 4 Kalshi contracts.

Implied probability

8%
0%50%100%

Kalshi

8%

4 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$1

4 contracts

Closes

Dec 31, 2026

103 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 11% (22 days, 22 points)Aggregate: 11% on 2026-09-18
Aggregate of 4 contracts · 22d

Bracket families

4 clusters across 4 contracts.

These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.

Cluster 1

Will Brainrot be in the “Word of the Year” as designated by Merriam-Webster in 2026

1 contract$1

Cluster 2

Will Vibe be in the “Word of the Year” as designated by Merriam-Webster in 2026

1 contract$0

Cluster 3

Will larping be in the “Word of the Year” as designated by Merriam-Webster in 2026

1 contract$0

Cluster 4

Will Performative be in the “Word of the Year” as designated by Merriam-Webster in 2026

1 contract$0

Analysis

This probability estimates the likelihood that Merriam-Webster will select an AI-related word as its Word of the Year for 2026. Merriam-Webster has designated a single word annually since 2003, typically choosing terms that reflect significant cultural moments or linguistic shifts. The 10% probability suggests skepticism about AI being selected, despite the technology's prominence. Market participants appear to favor competing words like "larping" (14%) over AI-related terms, indicating fragmentation among potential candidates. The main factors influencing this probability are the breadth of linguistic contenders in 2026 and whether any single AI term gains sufficient cultural prominence by year-end to distinguish itself as the defining word of the year. Merriam-Webster will announce its selection in early December 2026.

  • Merriam-Webster's selection criteria prioritize cultural significance and widespread adoption rather than technological importance alone; AI usage remains normalized rather than novel by late 2026
  • Competing candidates like 'larping' (14%) and 'brainrot' (11%) command higher probabilities, suggesting the prediction market views non-AI words as more likely contenders
  • AI-related terminology would need to achieve notable linguistic evolution or cultural meaning shift specific to 2026 to compete against other emerging slang or cultural phenomena
  • The announcement occurs in early December 2026; no interim data releases will clarify Merriam-Webster's selection process before that final date
  • Historical precedent shows Merriam-Webster rarely selects technology-centric terms unless paired with distinct cultural implications beyond technical advancement

What moved the line

  • Sep 17Vibe6pp28¢ · Kalshi
  • Sep 12Vibe4pp62¢ · Kalshi
  • Sep 18Brainrot3pp811¢ · Kalshi

Recently closed in technology

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

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