SimpleFunctions
PolymarketMay 31, 2026

Will OpenAI have the #1 AI model at the end of May 2026 (Style Control On)?

This contract is priced at 2¢ on Polymarket. Current book: 1¢ bid, 2¢ ask, 1¢ spread.

Implied probability

2¢
$20K volume
$12K liquidity
6% of event volume

Event outcomes

15

Family volume

$314K

Best sibling

Anthropic 76¢

Ticker

0x482e9c8a…bc14

Market snapshot

OpenAI in market context.

This page tracks the Polymarket contract for Will OpenAI have the #1 AI model at the end of May 2026 (Style Control On)?. The displayed quote is 2¢ from the latest venue quote. The cached market record reports 24h volume of $511. In the Which company has the #1 AI model end of May? (Style Control On) family, this outcome ranks #3 of 15 by current quote across 15 sibling outcomes. The indicator bundle was refreshed May 9, 2026, 5:16 AM UTC.

Outcome

OpenAI

Family rank

#3 of 15

Venue

Polymarket

Current quote

Quote source

Latest venue quote

Timing

Listed until May 31, 2026

24h volume

$511

Family context

15 outcomes · Which company has the #1 AI model end of May? (Style Control On)

Quote range

0¢-76¢

Family leader

Anthropic 76¢

Last updated

May 9, 2026, 5:16 AM UTC · 0m ago

Venue identifier: 0x482e9c8ae3b39202959a8cef567ad60e253458115a59e1edf7d28fa04ce5bc14. Family volume: $314K.

Price history

2¢ current

25¢50¢75¢100¢
May 9, 2026May 9, 2026

Orderbook snapshot

1 / 2¢

Polymarket
1¢ spread
BidSize
100¢1.9K
100¢2.2K
100¢1.0K
100¢40
100¢9.9K
100¢818
0¢136K
0¢11K
AskSize
2¢401
2¢420
2¢1.6K
2¢369
2¢8
3¢135
3¢113
3¢190

Contract terms

Resolution, venue, and identifiers.

Resolution rules

This market will resolve according to the company that owns the model that has the highest arena rank (Style Control On) based on the Chatbot Arena LLM Leaderboard (https://lmarena.ai/) when the table under the "Leaderboard" tab is checked on May 31, 2026, 12:00 PM ET. Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://lmarena.ai/leaderboard/text with style control on will be used to resolve this market. Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “xAI”). This market will resolve based on the company that occupies first place under this ranking system. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://lmarena.ai/. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve based on another resolution source.

Venue

Polymarket

Closes

May 31, 2026

Identifier

0x482e9c8a…bc14

Event family

Which company has the #1 AI model end of May? (Style Control On).

This view keeps the individual contract next to its sibling outcomes. For long-tail search traffic, this is the useful context: where the current price sits inside the event, how much volume exists around the family, and which outcomes have actual depth.

Total volume

$314K

Outcomes

15

Highest price

Anthropic 76¢

Current share

6%

OutcomePriceVolume24hDepth

OpenAI

polymarket · 0x482e9c8ae3b39202959a8cef567ad60e253458115a59e1edf7d28fa04ce5bc14

2¢$20K$511

Anthropic

polymarket · 0x9cede4a2937c7faf2f631ef56a963c554bca5fc1343460d1fd5898cc57e33bfd

76¢$33K$2680.0

Alibaba

polymarket · 0x0fd194f22208779b534ddabf26415977b21abe4727a8f1a44ed3b3b9af1c4e18

0¢$26K$299

Google

polymarket · 0xa4932209d91d0301addd39220d8ec418ab776128ccbd8d7c2997c20c174133c6

24¢$24K$391

Baidu

polymarket · 0x4f89bf1d4b1e7e6a24003daf7a2dd9d30e044a2d9557dad98d3583fbd4dbaa5f

0¢$23K$245

ByteDance

polymarket · 0x8ced37b18bdc5c108752b511c9c0c39cc7c8aa0008904a8debc6b273297a3506

0¢$23K$217

Meta

polymarket · 0xd177d29b5572dddbb7082a3c0067299f10f776472809ee5bc36480a71ec82066

1¢$23K$290

Microsoft

polymarket · 0x6f1b003390ad1a14058f019b83c29a024d50e85a91b4a2517a788c45a1b1b778

0¢$22K$222

xAI

polymarket · 0x0e6184ea1dc67e2432c00c062651d76f78e609838560608bf68fb1629f2d268b

1¢$21K$2K

DeepSeek

polymarket · 0xbc387ec8177308461306cd6e97b574f392f7b1ff606852b2e0491db98d2c8325

0¢$19K$784

Mistral

polymarket · 0x1d9eb512fc31a514bdf5ff3556ef8238b5a3dfa740687691c1db76e3fbfeba20

0¢$18K$0

Z.ai

polymarket · 0xb15072a551705782f9d38238acbb9b41690a3306aca740db836e0db1acd7c4b9

0¢$18K$222

Moonshot

polymarket · 0x4260b1342b4e10105d35d20f6d1806187f170c8d329be6d632183723ad3d5824

0¢$16K$222

Meituan

polymarket · 0x6917d021d140d84533fbef439e0137371a640e50346f877e720c5ca329163477

0¢$16K$224

Amazon

polymarket · 0x18841c9cd6cc22565a4ee8f2b64ede74c452fddb45fa9f03758ecd43224e40bc

0¢$13K$222

Indicators

Yield, cliff risk, volatility, and regime.

Regime

neutral

Score

0.5

Related readings

Matched from SimpleFunctions blog, opinions, technical guides, concepts, and learn pages.

Browse library
Blogmarkets

Kalshi vs Polymarket: Which Prediction Market Should You Trade?

In-depth comparison of Kalshi and Polymarket for prediction market traders. Regulatory structure, liquidity, fees, API tooling, and cross-venue trading with SimpleFunctions.

Opinioncomparison

Kalshi vs Polymarket: Mechanics, Fees, Regulation, Liquidity (2026)

Side-by-side comparison of Kalshi and Polymarket in 2026. Fee math, calibration data, withdrawal speed, and a decision tree for picking the right venue.

Conceptmethodology

Cross-Venue Convergence Dynamics: Why Kalshi and Polymarket Converge — and When They Don't

Why the same outcome on Kalshi and Polymarket usually trades within 2-5 cents — and the three specific things that cause the gap to widen. Diagnostic guide and worked convergence trade.

Conceptmethodology

Resolution Ambiguity Score: Quantifying Rule-Risk Per Market

A heuristic 0-10 score for the rule risk on a prediction market, based on edge case count, venue dispute history, and source-of-truth specificity. The pre-trade discipline that catches Polymarket UMA disputes and Kalshi rule-mismatches before they catch you.

Technicalguide

Your First Prediction Market Trade: End-to-End CLI Walkthrough

Step-by-step CLI tutorial for your first prediction market trade. Install, scan, create a thesis, find edges, check liquidity, place an order, and monitor — all from the command line.

Bloginsights

When the Orderbook Is Empty, You Have Information

An empty orderbook is not missing data. It is one of two specific stories — and the second story is the most reliable maker setup I have found on Polymarket.

SimpleFunctions context

Index, screen, query, and monitor.

Open index