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Home/AI / Tech/Will OpenAI’s Astra model be released by September 30, 2026?
PolymarketAI / TechUpdated 10m ago

Will OpenAI’s Astra model be released by September 30, 2026?

Market probability
98.9%
−1 percentage point
over 24 hours99.9% → 98.9%
26 days until the event deadline
Deadline: September 30, 2026 at 7:59 PM ET

A repricing with partial backing — read the new probability with some caution.

The pricing has partial support: healthy trading volume and market depth, a tight spread.

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?

Moderate

The pricing has partial support: healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$64.5K traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

On August 1, 2026, OpenAI publicly disclosed “Astra,” describing an internal version of Astra as its “next major model.” You can read more about that here: https://openai.com/index/ten-advances-in-mathematics/. This market will resolve to "Yes" if OpenAI releases "Astra" or a model confirmed to be the same model referenced in the announcement described above, and that model is made available to the general public by …

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

On August 1, 2026, OpenAI publicly disclosed “Astra,” describing an internal version of Astra as its “next major model.” You can read more about that here: https://openai.com/index/ten-advances-in-mathematics/. This market will resolve to "Yes" if OpenAI releases "Astra" or a model confirmed to be the same model referenced in the announcement described above, and that model is made available to the general public by the listed date (ET). Otherwise, this market will resolve to "No." A qualifying model must be named "Astra" (including variants or successor branding such as Astra 1, Astra 6, Astra X, GPT-6 Astra, or similar naming or rebranded versions) or be confirmed to be the same model referenced in the announcement by OpenAI or by a consensus of credible reporting. Products labeled as GPT-5.7, GPT-6, or similar will only count if they are confirmed to be the same model referenced in the announcement. For this market to resolve to "Yes," the qualifying model (as defined above) 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. 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 displayed on the website that do not correspond to a model that is actually accessible to the general public will not qualify. The primary resolution source for this market will be official information from OpenAI; however, a consensus of credible reporting will also be used.

What could move this market next?

  • The market's deadline arrivesSeptember 30, 2026 at 7:59 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Sep 4, 5:10 AM 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.

  • By Sep 421.6%
  • By Sep 30 (this market)98.9%

Extending the deadline from Sep 4 to Sep 30 adds about 77.3 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 ±18 pts.

Thin marketLegacy movement classifier: watch

What's happening

medium classifier confidence
Thin market

Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.

Change (pts)1H0.06H-1.024H-1.07D-1.0
Score breakdown — Movement, Liquidity & Trust

ProbCast Trust Score

49/ 100 · Watch

Mixed support. Interpret with some caution. Main caveat: thin liquidity.

ProbCast measures how reliable this market probability appears — not what to trade.

Movement20

Magnitude of recent probability change

Liquidity75

Related markets

Will OpenAI have the best AI model at the end of September 2026?

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Will OpenAI’s Astra model be released by September 4, 2026?

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Will OpenAI make Astra publicly available by October 15, 2026?

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ProbCast — Odds Reliability

Know whether prediction-market odds can be trusted. ProbCast analyzes liquidity, market activity, spreads, and price movement to help distinguish meaningful repricing from thin-market noise.

Questions? Chat with us on Telegram
TodayTop MoversEventsAll MarketsWhat ChangedVenue DivergencePolymarket vs KalshiMethodologyCoverageMeta's ArenaWatchlistTerms of UsePrivacyCrypto
  • Book runs out before absorbing a 5-pt move (fragile depth)

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
19Low
Where the price path tends to go next361 observed
  • Choppy / mean-reverting91%
  • Stable consensus3%
  • Thin-liquidity spike2%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~3h
PredictabilityStable

Secondary read: leaning toward Quote-driven.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$55.2K

Liquidity

$9.7K

Total volume

$175.4K

Category
AI / Tech
Venue
Polymarket
Open interest
—
Spread
0.9 pts
Best bid
98.4%
Best ask
99.3%
7-day range
98.9% – 99.9%
Resolves
Sep 30, 2026

Depth of the order book and volume

Trust breakdown

49/100 · Watch

Mixed support. Interpret with some caution. Main caveat: thin liquidity.

  • Liquidity anchor+53
  • Price steadiness+24
  • Thin liquidity-20
  • Limited history-8
Trust score49 / 100
How these scores work →
View on Polymarket

ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. ProbCast is not a betting platform, exchange, or broker and does not provide buy or sell recommendations. Intended for users 18+; availability of prediction-market activity varies by jurisdiction. Venue data is aggregated from third parties and may be delayed or inaccurate. See our Terms of Use.

Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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