GPT-5.5 released by April 30, 2026?

Market leans towards GPT-5.5 not being released by April 30, 2026.

The prediction market indicates a 61% probability that GPT-5.5 will not be released by the specified date, while the Pulse AI suggests a slightly higher chance of 42.5% for a release. With a confidence level of 60/100 and a time to expiry of 1191 hours, the market appears to be fairly priced with an edge of 3.5.

• 1 Current market sentiment favors a NO outcome for GPT-5.5 release.
• 2 The probability gap between market and Pulse AI is relatively narrow.
• 3 Confidence level suggests moderate uncertainty in the prediction.
• 4 Time until expiry allows for potential shifts in market perception.
• 5 Market pricing indicates balanced views on the likelihood of release.

This market will resolve to "Yes" if OpenAI's GPT-5.5 model is made available to the general public by the specified date (ET). Otherwise, this market will resolve to "No."

GPT-5.5 refers to a product explicitly named GPT-5.5, or a variant that is recognized as a direct successor to GPT-5.4, similar to the progression from GPT-5.1 to GPT-5.2. (e.g., GPT-5.6, GPT-5.7, etc would qualify toward a "Yes" resolution to this market)

Qualifying releases of task-specialized models (e.g., GPT-Codex/Transcribe), cost-efficiency variants (e.g., Nano/Mini), or reasoning models of the o-series family will count for this market. Products labeled as a new flagship generation GPT-6 or similar will NOT qualify.

For this market to resolve to "Yes," a qualifying model must be launched and publicly accessible, including via open beta or open rolling waitlist signups. A closed beta or any form of private access will not suffice.

The release must be either clearly defined and publicly announced by OpenAI as being accessible to the general public or otherwise made publicly accessible and explicitly labeled within the company’s official website. Labeling errors, placeholder text, or version names di