# Which company has the best AI model end of May

> Anthropic leads at 77%, runner-up 20% across 3 winner-take-all outcomes — refreshed 1 min ago.

URL: https://simplefunctions.dev/odds/which-company-has-best-ai-model-may
Updated: 2026-05-09T04:20:44.523Z
Category: technology
Status: active
Closes: 2026-05-31

## Headline

- Leader: Anthropic at 77%
- Runner-up: Google at 20%
- Outcomes: 3 (winner-take-all)
- Venue: Polymarket (3 contracts)
- 24h volume: $37K

## Bound contracts (3)

| Outcome | Price | 24h | Volume | Venue | Slug |
|---|---|---|---|---|---|
| Anthropic | 77¢ | — | $12K | polymarket | /markets/which-company-has-the-best-ai-model-end-of-may-ant-polymarket-0x5072d0bf27763754b734c63255c4cbbba79d9d09b214accf33ecc79b88b1d108 |
| Google | 20¢ | +1pp | $4K | polymarket | /markets/which-company-has-the-best-ai-model-end-of-may-goo-polymarket-0x2ae22e1fd29651ed6f049114672a0be94b907e833485a7a6d0c7df2dc7f03ce9 |
| OpenAI | 3¢ | — | $21K | polymarket | /markets/which-company-has-the-best-ai-model-end-of-may-ope-polymarket-0xc6176e61dc008476c102b63a254d228a19a131c7d209a22444b9c4c7132f78da |

## 30-day trajectory

| Day | Anthropic | Google | OpenAI |
|---|---|---|---|
| 2026-05-06 | — | 23 | 4 |
| 2026-05-07 | 76 | 24 | — |

_2 days of price history captured. Each row is the daily mean of intraday 5-min captures._

## Methodology

Headline is the **leader's price**, not an arithmetic mean — averaging disjoint winner-take-all outcomes is meaningless. Per-outcome prices come from the venue's last-traded mid; cross-venue values are simple means across contracts on each venue.

## How to use this data

- HTML: https://simplefunctions.dev/odds/which-company-has-best-ai-model-may
- JSON: https://simplefunctions.dev/api/public/odds?slug=which-company-has-best-ai-model-may

## License

CC-BY-4.0. Attribute "SimpleFunctions" with a link to https://simplefunctions.dev. See https://simplefunctions.dev/legal for terms.