OpenAI announced the GPT-5.5 model, resolving the release date market entirely. The GPT-5.5 release by April 23 contract now sits at 100% YES, up from 84% a week ago.
The April 23 market jumped from 93% to 100% in the last 24 hours. The April 30 and June 30 markets have also settled at 100% YES.
Daily actual USDC trading volume across these markets is $233,954. The most notable single move was a 3-point drop in the April 23 sub-market before the announcement, suggesting some traders were adjusting positions ahead of the news.
With all three release date contracts at 100%, there is no remaining trade on the timing question. Betting against the release at this point would mean taking a contrarian position with no substantive basis — the official announcement has been made and the markets are fully saturated.
Traders should now watch for GPT-5.5 benchmark results against competing models and any follow-up announcements from OpenAI or its partners. Sam Altman and OpenAI’s communications will likely shift toward deployment metrics and user feedback.
Get prediction market intelligence as a structured API feed. Early access waitlist.
Term Structure| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| June 30, 2026 | 100% | — | — | Trade → |
| April 30, 2026 | 100% | — | — | Trade → |
| April 23, 2026 | 100% | — | — | Trade → |