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Meta's Watermelon Model: Text Arena Debut?
polymarket

Meta's Watermelon Model: Text Arena Debut?

Volume:
$28,142

1500+

 - Polymarket

1500+ - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 14, 2026

Closed: Oct 14, 2:01 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

1500+

View
100%
56%
Yes 100¢No 0¢
—
N/A
$7,469
N/A
N/A
N/A
8mo
Yes
polymarket

1490+

View
100%
46%
Yes 100¢No 0¢
—
N/A
$5,137
N/A
N/A
N/A
8mo
Yes
polymarket

1480+

View
100%
16%
Yes 100¢No 0¢
—
N/A
$1,735
N/A
N/A
N/A
8mo
Yes
polymarket

1510+

View
0%
35%
Yes 0¢No 100¢
—
N/A
$7,559
N/A
N/A
N/A
8mo
No
polymarket

1505+

View
0%
33%
Yes 0¢No 100¢
—
N/A
$6,242
N/A
N/A
N/A
8mo
No
Total markets: 5

Description

On September 2, 2026, alongside the launch of Muse Spark 1.3, Meta announced a roadmap "including bigger models" (https://research.meta.ai/blog/introducing-muse-spark-1-3). Credible reporting has identified Meta's next-generation frontier model by the internal codename "Watermelon." This market will resolve to "Yes" if the next Meta "Watermelon" 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 be named "Watermelon" or be identified, by Meta or by a consensus of credible reporting, as the model internally codenamed "Watermelon," regardless of the name under which it is ultimately released. 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".

Polymarket

On September 2, 2026, alongside the launch of Muse Spark 1.3, Meta announced a roadmap "including bigger models" (https://research.meta.ai/blog/introducing-muse-spark-1-3). Credible reporting has identified Meta's next-generation frontier model by the internal codename "Watermelon." This market will resolve to "Yes" if the next Meta "Watermelon" 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 be named "Watermelon" or be identified, by Meta or by a consensus of credible reporting, as the model internally codenamed "Watermelon," regardless of the name under which it is ultimately released. 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".

Frequently asked questions

On Polymarket, the dashboard for the Meta Watermelon Model market tracks the current odds of whether Meta will publicly debut a large language model referred to internally as 'Watermelon' in a text-generation arena by the resolution date. You can view the implied probability of different outcomes, the 24-hour trading volume, which is currently $15,818, and the total volume traded to date, which stands at $28,140. The dashboard also displays a price history chart to visualize how the market has moved over time.

Currently, the odds in this market reflect a different perspective than many analyst forecasts regarding Meta’s AI strategy. While some analysts predict a cautious approach to releasing new models, the pricing here suggests traders believe there is a significant chance of a text arena debut before Jun 30, 2027. This discrepancy could stem from the market incorporating information not yet reflected in traditional analysis, or from differing interpretations of Meta’s public statements. It’s important to remember that prediction markets represent a collective forecast based on real-money wagers.

On Polymarket, this market is priced through a continuous double auction, meaning traders can buy and sell shares representing their belief in the outcome. The price of a share directly reflects the probability of the event occurring, as perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the price will adjust to reflect the evolving consensus. Currently, the market is driven by supply and demand, with traders adjusting their positions based on their individual assessments of the likelihood of a Watermelon model debut.

This market resolves around Jun 30, 2027, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, resolution will depend on whether Meta has publicly announced and launched a text-generation arena featuring the internally-named 'Watermelon' model. Any official announcement from Meta, documented in reliable news sources, will serve as the basis for determining the outcome. The market will then settle based on whether this condition has been met by the resolution date.

Several signals could significantly impact this market. Any official statements from Meta regarding their AI roadmap, particularly concerning the Watermelon model or plans for a text-generation arena, would be a major catalyst. Unexpected advancements in the capabilities of competing large language models could also shift trader sentiment. Furthermore, leaks or reports from credible sources detailing Meta’s internal plans could cause substantial price movement. Finally, broader developments in the AI regulatory landscape might influence Meta’s decision-making and, consequently, the outcome of this market.