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Will Meituan have the best AI model at the end of December 2026?

Belief Systems Market Grade

NRnew

Not Rated · New

As of Oct 23, 2026Measured from Sep 23 to Oct 23, 2026

No grade is given. Too few days of data to start a grade.

Grade limits apply: D from the weaker of liquidity and integrity, C+ from trading evidence.

Rates how well this market trades, from A+ (best) to F: how much you can trade near the price, and how many different traders take part. Not a forecast of the outcome.

Market status
Not Rated · New
Under review
No
Data
Current · 100% observed
Trading activity
Limited trading activity · grade limit C+

Liquidity and integrity

The two measures behind the grade.

Liquidity

Not rated

How easily the market trades: the depth of buy and sell quotes, the cost of a typical trade, and how steadily trading happens.

Integrity

Not rated

How broad and orderly trading is: how many different traders take part, and how often quotes are missing, one-sided, or crossed.

It screens for concentrated trading. It is not proof that a market can’t be manipulated, since many accounts can belong to one trader.

Both are recalculated daily over the same 30-day period. The overall grade moves more slowly: a change has to hold before it counts.

Grade changes(0)

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Every change stays on the record, including corrected ones.

No grade changes yet.

Details and citationShow

The grade

Market status
Not Rated · NewToo few days of data to start a grade.
Under review
No
Data status
CurrentEnough data was observed.
Grade limits
D from weaker component (in force)C+ from trading evidence (in force)
Trading activity
Limited trading activity (T0)Trading activity was below the evidence threshold, or too few trades were observed to assess it. A C+ grade limit from trading evidence is on this record.
Grade since
–

The data

Data observed
Full · 100%
Days observed
0 of 30 needed
Measured over
Sep 23 to Oct 23, 2026
First observed
Oct 22, 2026
Last complete day
Oct 23, 2026
Data check codes
None

Identifiers and versions

Record ID
polymarket:0x2b16027151939383432ca27284c5b45a87e588f3755e7502ecf5332d12f479ac:1A change to what the market question means starts a new record.
Venue
Polymarket
Market ID
0x2b16027151939383432ca27284c5b45a87e588f3755e7502ecf5332d12f479ac
Correction
Original
Calculation status
candidate
Last confirmed change
None
Methodology version
mg-1.2
Calibration version
mg-cal-1.0

Cite this grade

Market Grades by Belief Systems: Will Meituan have the best AI model at the end of December 2026? Market Grade Not Rated (new).

Episode:
polymarket:0x2b16027151939383432ca27284c5b45a87e588f3755e7502ecf5332d12f479ac:1
Flags:
none
Lifecycle:
Not Rated · New
Data status:
Current
Under review:
No
Trading activity:
Limited trading activity (T0) · grade limits D (weaker component), C+ (trading evidence)
Book coverage:
full · 100%
As of:
2026-10-23 · window 2026-09-23 to 2026-10-23
Versions:
mg-1.2 / mg-cal-1.0

https://beliefsystems.xyz/grades/polymarket/0x2b16027151939383432ca27284c5b45a87e588f3755e7502ecf5332d12f479ac

How grades are calculated ↗

Market Grades are in beta. Grades are live, and the methodology is being validated in public on a published schedule. Validation roadmap ↗

Disclosures

Market Grades measure market quality – liquidity, integrity – not the likelihood of any outcome.

Market Grades are unsolicited: no graded party requests, pays for, or previews a grade. Belief Systems holds no positions in graded markets.

A grade is not a recommendation to buy, sell, or hold any position, and is not a substitute for a user's own assessment.