The Prediction Markets

Next Claude Sonnet (5.6+) released by...?

Closes
Dec 31, 2026, in 2 months
Traded
$2K
Venues
Polymarket
Prices updated
2 min ago
Share

What the markets expect

January 31 36.5%

Next is December 31 at 27%. Only Polymarket 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 2 min ago. Ages are as of when this page was built.

  • Polymarket
January 31
36.5%
Polymarket 36.5%polled, 2 min agoBest Yes 57¢ on Polymarket, $100 pays $175 (1.75x)
Polymarket
Contract
January 31
Last price
36.5%
As of
Polled 2 min ago
Buy Yes
57¢
Sell Yes
16¢
$100 on Yes pays
$175 (1.75x)
Volume
$1K
Trade this on Polymarket
December 31
27%
Polymarket 27%polled, 2 min agoBest Yes 30¢ on Polymarket, $100 pays $333 (3.33x)
Polymarket
Contract
December 31
Last price
27%
As of
Polled 2 min ago
Buy Yes
30¢
Sell Yes
24¢
$100 on Yes pays
$333 (3.33x)
Volume
$1K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The top 2 outcomes on both venues, with the consensus between them. Hover for exact values.

  • January 31
  • December 31

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.

Top of book

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Best bid
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Spread
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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

Live prediction market odds for "Next Claude Sonnet (5.6+) released by...?". January 31 leads at 36.5%. Next is December 31 at 27%. $2K has traded across 2 outcomes on Polymarket. The market is expected to resolve by Dec 31, 2026.

This market will resolve to "Yes" if Anthropic's next Claude Sonnet model (5.6+) is made available to the general public between market creation and the specified date (ET). Otherwise, this market will resolve to "No". A qualifying model must have a name or model identifier that includes "Sonnet" and be designated as version 5.6 or higher, regardless of capitalization or surrounding prefixes, suffixes, dates, or descriptors. For example, a version 5.6 or higher named in the same manner as Claude Sonnet 5 or Claude Sonnet 5.5 would qualify, including a new whole-number generation such as Claude Sonnet 6, while models whose name does not include "Sonnet" or which retain a version designation below 5.6, such as Claude Sonnet 5.5, including any rollout, promotion, or snapshot of it, will not qualify. A qualifying model 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 either be clearly defined and publicly announced by Anthropic as accessible to the general public, or otherwise be made publicly accessible and explicitly labeled on 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 Anthropic, 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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