Will GPT-6 be released by September 15, 2026?
The move lacks solid trading support — treat the new probability with caution.
The pricing has weak support: healthy trading volume and market depth, a tight spread. The probability moved another 7.5 points in the past hour — the market is still repricing.
How credible was the move?
Three separate questions — a move can be genuine while the latest price is still settling. Methodology →
Move validity
Is the move backed by real trading and depth?
WeakThe pricing has weak support: healthy trading volume and market depth, a tight spread.
Consensus stability
Has the market settled at the new probability?
UnsettledThe probability moved another 7.5 points in the past hour — the market is still repricing.
Contract clarity
Will the rules resolve without ambiguity?
HighThe resolution rules are relatively specific, with a named source and a defined deadline.
From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.
What this market actually measures
This market will resolve to "Yes" if OpenAI's GPT-6 model is made available to the general public by September 15, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No." For this market to resolve to "Yes," GPT-6 must be launched and publicly accessible, including via open beta or open rolling waitlist signups.
This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.
View full official resolution rules
This market will resolve to "Yes" if OpenAI's GPT-6 model is made available to the general public by September 15, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No." For this market to resolve to "Yes," GPT-6 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 clearly defined and publicly announced by OpenAI as being accessible to the general public. GPT-6 refers to a product explicitly named GPT-6 (e.g. ChatGPT-6o would count), or one that is recognized as a successor to GPT-5, similar to the progression from GPT-3 to GPT-4. Products labeled as GPT-5.5 or similar will not count for this market's resolution. The primary resolution source for this market will be official information from OpenAI, with additional verification from a consensus of credible reporting.
Why the odds moved
The probability rose 6.0 percentage points over the last 24 hours (83.5% → 89.5%).
No verified catalyst has been linked to this move yet. ProbCast does not attribute moves to news without evidence connecting the timing of a specific report to the repricing.
What could move this market next?
- The market's deadline arrivesSeptember 15, 2026 at 11:59 PM ET
The contract must resolve based on what has happened by this date.
Derived from the contract's own mechanics as of Sep 2, 2:16 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.
Probability by deadline
The same event, priced across deadline contracts on this venue.
Extending the deadline from Sep 30 to Dec 31 adds about 5.0 percentage points of implied probability.
Advanced analysis (experimental)
Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±25 pts.
What's happening
A sustained one-directional drift. This can be a genuine trend or crowd herding; watch whether liquidity and breadth confirm the move.
Market data
24h volume