Market Odds Surge for GPT-5.5 Release Amid Speculation and Leaks

By Patricia Miller

Apr 23, 2026

2 min read

The odds for GPT-5.5 release have risen to 93% post-leak, indicating strong market confidence in an imminent announcement.

#What are the Current Odds of GPT-5.5 Release?

The market for GPT-5.5 release has surged in confidence, now standing at 93% likelihood for an announcement by April 23, according to Polymarket. This marks a significant increase from just 64% a week prior. It’s important to note that this spike came after a leak from the Codex tool, suggesting that news could arrive sooner than expected.

The April 30 contract similarly reflects growing optimism, currently sitting at a 98.9% likelihood, up from 89% previously. Meanwhile, the June 30 market indicates a near certainty with a 99.4% chance attached. The most striking shift is the 6-point jump between the April 23 and April 30 contracts, showcasing trader belief that an announcement is imminent rather than delayed.

#How Much Trading Activity is Happening?

There is considerable trading activity in the April 23 market with about $74,705 in USDC exchanged, indicating decent liquidity, though it's worth noting that only $930 is required to shift the price by five points. This degree of liquidity means substantial trades could lead to pronounced market movements. A notable instance occurred recently when the market experienced a 7-point spike at 4:17 PM, likely due to speculators anticipating a livestream.

#What Does This Mean for Investors?

Investors are keenly watching the developments in this market. A YES share priced at 93 cents will pay out $1 if the GPT-5.5 is announced today, meaning there’s a potential 7-cent gain if the information from the leak holds true. The market appears to trust this leak despite its origin from a less credible tier-3 source, meaning the main risk lies in the chance of a delayed or canceled announcement.

#Where to Look for Confirmation?

For investors, keeping an eye on key sources is crucial. Monitoring Sam Altman’s Twitter and the OpenAI status page will provide concrete signals about any forthcoming confirmations. Such announcements could quickly lead to a resolution of the remaining contracts.

Important Notice And Disclaimer

This article does not provide any financial advice and is not a recommendation to deal in any securities or product. Investments may fall in value and an investor may lose some or all of their investment. Past performance is not an indicator of future performance.