The Prediction Markets

How low will the OpenAI GPT 5.5 input token price get in 2026?

Closes
Apr 1, 2027, in 5 months
Traded
$12K
Venues
Kalshi
Prices updated
29 min ago
Share

What the markets expect

4/MTok or below 31%

Next is 2/MTok or below at 18%. Only Kalshi lists this market, so there is no second price to compare.

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 29 min ago. Ages are as of when this page was built.

  • Kalshi
4/MTok or below
31%
Kalshi 31%polled, 29 min agoBest Yes 31¢ on Kalshi, $100 pays $323 (3.23x)
Kalshi
Contract
4/MTok or below
Last price
31%
As of
Polled 29 min ago
Buy Yes
31¢
Sell Yes
26¢
$100 on Yes pays
$323 (3.23x)
Volume
$6K
Trade this on Kalshi
2/MTok or below
18%
Kalshi 18%polled, 29 min agoBest Yes 18¢ on Kalshi, $100 pays $556 (5.56x)
Kalshi
Contract
2/MTok or below
Last price
18%
As of
Polled 29 min ago
Buy Yes
18¢
Sell Yes
10¢
$100 on Yes pays
$556 (5.56x)
Volume
$842
Trade this on Kalshi
3/MTok or below
16%
Kalshi 16%polled, 29 min agoBest Yes 17¢ on Kalshi, $100 pays $588 (5.88x)
Kalshi
Contract
3/MTok or below
Last price
16%
As of
Polled 29 min ago
Buy Yes
17¢
Sell Yes
16¢
$100 on Yes pays
$588 (5.88x)
Volume
$5K
Trade this on Kalshi
1/MTok or below
2%
Kalshi 2%polled, 29 min agoBest Yes 8¢ on Kalshi, $100 pays $1,250 (12.5x)
Kalshi
Contract
1/MTok or below
Last price
2%
As of
Polled 29 min ago
Buy Yes
8¢
Sell Yes
2¢
$100 on Yes pays
$1,250 (12.5x)
Volume
$930
Trade this on Kalshi

Who resolves this market

Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: OpenAI

How the odds have moved

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

  • 4/MTok or below
  • 2/MTok or below
  • 3/MTok or below

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.

Kalshi

Open on Kalshi ↗

Top of book

Connecting
Best bid
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Spread
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Best ask
—

Waiting for the first live quote…

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.

$
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 0.07 × price × (1 − price) per share (crypto rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "How low will the OpenAI GPT 5.5 input token price get in 2026?". 4/MTok or below leads at 31%. Next is 2/MTok or below at 18%. $12K has traded across 4 outcomes on Kalshi. The market is expected to resolve by Apr 1, 2027.

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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