GPT-5.6 has no confirmed release date, so this page reads what prediction markets and graded intel currently signal about its window — not a hard prediction. The reading is assembled from blended data behind this forecast on Polymarket and Kalshi, the codename ⟨EMBER-ALPHA⟩ seen in public model-catalog signals, and a Drop Readiness score. It is a living snapshot; the live forecast card on the home board is authoritative.
Polymarket and Kalshi odds are used here as a forecasting signal — the fastest public read on when a model ships. Nothing on this page is betting, gambling, or financial or investment advice. Every number in the prose below is illustrative; the authoritative figures live on the live GPT-5.6 forecast card.
What markets currently signal
As of the last updated date below, prediction markets signal an expected GPT-5.6 window rather than a fixed launch day, with the codename ⟨EMBER-ALPHA⟩ appearing in public model-catalog signals ahead of any public name. "Expected" is the middle stage on Next AI Drop — more committed than a rumour, short of an imminent confirmed drop. Blended Polymarket and Kalshi pricing leans toward a release later this quarter, but the spread between the two venues is wide enough that the date is a range, not a point.
Treat that as orientation, not certainty. Market-implied windows shift the moment a credible signal lands, and the two venues frequently disagree on the same "released by" question — which is exactly the cross-venue read this site exists to surface. For the number that matters, check the live GPT-5.6 forecast card rather than any figure quoted in this prose.
Is GPT-5.6 out yet?
No — GPT-5.6 has not shipped as a publicly released model. There is no official launch announcement and no general-availability listing, which is why it sits in the forecast section of the timeline rather than the shipped-models database. This status can change hourly, so a confirmed drop will appear on the board before it appears in this post.
If you want the moment-to-moment state instead of this snapshot, the live release timeline flips GPT-5.6 from forecast to confirmed the cycle a release is verified, and grades the supporting intel as it lands.
How we read the GPT-5.6 window
The window is a Drop Readiness score, the single number Next AI Drop assigns each forecast: DR = .45 odds + .25 intel + .20 deadline + .10 volume, refreshed hourly. Blended Polymarket and Kalshi odds carry the most weight; intel recency adds graded corroboration; deadline proximity rewards a tightening window; trading volume tempers thin markets. The output places each release into a stage — imminent, expected, or rumoured.
For an illustrative read, a GPT-5.6 forecast sitting in the expected stage with a mid-band DR score would imply a multi-week window with moderate market conviction and at least one recent corroborating signal. That example is illustrative only — not a live figure. The full computation, including how each input is weighted and bounded, lives on the page that owns it: how we score the window. For the builder-level story of the score itself, read the Drop Readiness score.
The intel behind the window
The intel feeding a GPT-5.6 forecast is publicly observable signal, graded by how much it can be trusted. The recurring types are API-documentation and developer-reference additions, new entries in public model-catalog and pricing listings, and codename mentions — the ⟨EMBER-ALPHA⟩ thread among them — surfacing in public posts on X and official changelogs. None of these is a launch on its own; together they move the intel term of the score.
Each item is tagged Confirmed (an official, verifiable statement), Rumor (a credible but unconfirmed report), or Market (a move in the odds with no accompanying disclosure). A window built mostly on Rumor and Market signal is softer than one with a Confirmed anchor, even at the same headline score. For how that grading works and where the signal comes from, see how the intel is graded and the data behind this forecast.
Track GPT-5.6 live
This post is a dated snapshot; the forecast underneath it is live. Markets reprice GPT-5.6 continuously, intel is regraded each cycle, and the codename mapping updates as ⟨EMBER-ALPHA⟩ resolves toward a public name — so the only current read is the board itself. Bookmark the live GPT-5.6 forecast card for the working number.
Planning around more than one frontier lab? The sibling read on the Gemini 3.5 Pro window applies the same method to a different release, so you can compare two windows side by side rather than one in isolation.