The market on whether GPT-6 will be released by September 30, 2026, saw a sharp 20.5 percentage point increase in its YES contract price over the last 24 hours, climbing from 50.0% to 70.5% according to the Polymarket Breaking feed.
This significant repricing was supported by whale activity that aligned with the price move. In the same period, whales bought $12K worth of YES contracts and sold $6K, resulting in a net $6K inflow into YES positions. This flow came from 50 unique whales, indicating broad participation among large traders.
Despite the strong rally in the Polymarket price, the on-chain data from Polydata shows a contrasting mid-price of 23.0%, highlighting a notable divergence between the market’s traded prices and the broader on-chain liquidity snapshot.
Trading volume for the market in the past 24 hours was $11K, contributing to a lifetime volume of $49K with 354 unique traders having participated since inception. The combined surge in price and whale buying suggests increased conviction in the probability of GPT-6’s release by the specified date, as reflected in the market’s pricing and large trader behavior.
The alignment of whale flow with the price increase reinforces the upward move, signaling that major participants are backing the shift in odds rather than opposing it. This dynamic adds weight to the market’s repricing despite the on-chain mid-price discrepancy.
| Market | Will GPT-6 be released by September 30, 2026? |
|---|---|
| Market ID | 1333258 |
| 24h price change | +20.5 pp |
| YES now (PM Breaking) | 70.5% |
| YES ~24h ago (est.) | 50.0% |
| YES (Polydata overview) | 23.0% |
| Whale net flow (24h) | $6K |
| Whale buy / sell (24h) | $12K / $6K |
| Unique whales (24h) | 50 |
| Volume 24h (PM) | $11K |
| Unique traders (Polydata) | 354 |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-09. Data: Polydata API v3. On-chain figures are public. Realized PnL is computed over resolved markets only and excludes open positions, so it is conservative versus the Polymarket UI. This is not investment advice.