PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedSelected book midpoint
October 12 · —
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Stored reference
October 12 100%Leader of 32 outcomes
October 12 100%Market quality
62 / 100
Medium quality24h Volume
$46.8K
Liquidity
$133.2K
High liquidityBid / Ask
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October 12Spread
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Comments
1
7d Change
-3.5 pts
Market data
Updated 12 minutes ago
Sep 28, 26, 6:37 PM UTCOct 31, 26, 11:59 PM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 0.1 percentage points
- Fees:
- Yes
Market depth · October 12
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Related questions for context, not a comparison of equivalent contracts.
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KalshiRules
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 according to the calendar date (ET) on which Meta's "Watermelon" model, or a model identified as the model internally codenamed "Watermelon," is made available to the general public.
- 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.
- 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.