The Prediction Markets

Next Muse Spark (1.4+): Text Arena Debut?

Closes
Jun 30, 2027, in 8 months
Traded
$24K
Venues
Polymarket
Prices updated
1 min ago
Share

What the markets expect

1480+ 65%

Next is 1500+ at 43.5%. 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 1 min ago. Ages are as of when this page was built.

  • Polymarket
1480+
65%
Polymarket 65%polled, 1 min agoBest Yes 73¢ on Polymarket, $100 pays $137 (1.37x)
Polymarket
Contract
1480+
Last price
65%
As of
Polled 1 min ago
Buy Yes
73¢
Sell Yes
57¢
$100 on Yes pays
$137 (1.37x)
Volume
$9K
Trade this on Polymarket
1500+
43.5%
Polymarket 43.5%polled, 1 min agoBest Yes 53¢ on Polymarket, $100 pays $189 (1.89x)
Polymarket
Contract
1500+
Last price
43.5%
As of
Polled 1 min ago
Buy Yes
53¢
Sell Yes
34¢
$100 on Yes pays
$189 (1.89x)
Volume
$7K
Trade this on Polymarket
1490+
29.5%
Polymarket 29.5%polled, 1 min agoBest Yes 37¢ on Polymarket, $100 pays $270 (2.70x)
Polymarket
Contract
1490+
Last price
29.5%
As of
Polled 1 min ago
Buy Yes
37¢
Sell Yes
22¢
$100 on Yes pays
$270 (2.70x)
Volume
$4K
Trade this on Polymarket
1510+
15.5%
Polymarket 15.5%polled, 1 min agoBest Yes 21¢ on Polymarket, $100 pays $476 (4.76x)
Polymarket
Contract
1510+
Last price
15.5%
As of
Polled 1 min ago
Buy Yes
21¢
Sell Yes
10¢
$100 on Yes pays
$476 (4.76x)
Volume
$4K
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: arena.ai

How the odds have moved

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

  • 1480+
  • 1500+
  • 1490+

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 Muse Spark (1.4+): Text Arena Debut?". 1480+ leads at 65%. Next is 1500+ at 43.5%. $24K has traded across 4 outcomes on Polymarket. The market is expected to resolve by Jun 30, 2027.

This market will resolve to "Yes" if the next Meta Muse Spark model added to the Arena.AI Leaderboard (https://arena.ai/leaderboard/text/overall-no-style-control) has at least the specified score at 12:00 PM ET on the calendar date following the date on which it first appears on the leaderboard. Otherwise, this market will resolve to "No". A qualifying model must have a name or model identifier that includes "Muse Spark" and be designated as version 1.4 or higher, regardless of capitalization, hyphenation, spacing, or surrounding prefixes, suffixes, dates, or descriptors. For example, a version 1.4 or higher named in the same manner as Muse Spark 1.2 or Muse Spark 1.3 would qualify, including a new whole-number generation such as Muse Spark 2, while models whose name does not include "Muse Spark" or which retain a version designation below 1.4, such as Muse Spark 1.3 (released September 2, 2026, including any of its reasoning modes, open-weight re-releases, rollouts, promotions, or snapshots), Muse Glimmer, or Muse Image, will not qualify. Results from the "Score" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control with style control off will be used to resolve this market. This market will resolve solely based on the specified score in the Score column of the leaderboard, regardless of any underlying granular or unrounded data presented elsewhere. A model marked "AutoEval" will not be considered added to the leaderboard. Only scores displayed without the "AutoEval" label will be considered. If multiple models are added to the leaderboard on the same calendar date (ET), the highest-scoring model will be used for resolution. Models added to the leaderboard on the calendar date following the initial qualifying model's first appearance will not be considered. If a model is first added to the Arena.AI Leaderboard but is subsequently removed and not re-added, such that it is not displayed on the leaderboard at 12:00 PM ET on the calendar date following its first appearance, its appearance will not qualify as added to the Arena.AI Leaderboard. A qualifying model must be newly added to the Arena.AI Leaderboard. Whether the model was previously released, publicly accessible, in beta, or otherwise available before appearing on the leaderboard is irrelevant for this market. The resolution source for this market is the Chatbot Arena LLM Leaderboard found at https://arena.ai/leaderboard/text/overall-no-style-control. If this resolution source is unavailable at 12:00 PM ET on the calendar date following the date on which the qualifying model first appears on the leaderboard, this market will resolve based on the first subsequent instance at which such a score becomes available on the leaderboard. If it remains unavailable through the end of the seventh day after the qualifying model first appears on the leaderboard or if no qualifying model release occurs by June 30, 2027, 11:59 PM ET, this market will resolve to "No".

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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