The Prediction Markets

GPT-6 released by…?

Closed
Dec 31, 2025
Traded
$304K
Venues
Polymarket
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This market has closed

Trading ended on Dec 31, 2025. The prices below are the last ones before it closed and no longer update. Browse open markets

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 162 days ago. Ages are as of when this page was built.

  • Polymarket
December 31, 2026
80.5%
Polymarket 80.5%polled, 3894 h agoBest Yes 81¢ on Polymarket, $100 pays $123 (1.23x)
Polymarket
Contract
December 31, 2026
Last price
80.5%
As of
Polled 162 d ago
Buy Yes
81¢
Sell Yes
80¢
$100 on Yes pays
$123 (1.23x)
Volume
$40K
Trade this on Polymarket
September 30, 2026
52.5%
Polymarket 52.5%polled, 3894 h agoBest Yes 56¢ on Polymarket, $100 pays $179 (1.79x)
Polymarket
Contract
September 30, 2026
Last price
52.5%
As of
Polled 162 d ago
Buy Yes
56¢
Sell Yes
49¢
$100 on Yes pays
$179 (1.79x)
Volume
$5K
Trade this on Polymarket
June 30, 2026
11%
Polymarket 11%polled, 3894 h agoBest Yes 12¢ on Polymarket, $100 pays $833 (8.33x)
Polymarket
Contract
June 30, 2026
Last price
11%
As of
Polled 162 d ago
Buy Yes
12¢
Sell Yes
10¢
$100 on Yes pays
$833 (8.33x)
Volume
$151K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • December 31, 2026
  • September 30, 2026
  • June 30, 2026

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Polymarket

Open on Polymarket ↗

Top of book

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Best ask
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Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

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Buy

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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.

About this market

Final prediction market prices for "GPT-6 released by…?". December 31, 2026 last traded at 80.5%. Next is September 30, 2026 at 52.5%. $304K has traded across 3 outcomes on Polymarket. The market closed on Dec 31, 2025.

This market will resolve to "Yes" if OpenAI's GPT-6 model is made available to the general public by December 31, 2025, 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.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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