b⁴ vs Polymarket: opinion markets vs prediction markets

Polymarket is a prediction market. Each market asks whether something will happen in the real world — an election, a match, a price — and settles on the outcome, checked against the resolution source in the market’s rules and usually finalized through UMA’s optimistic oracle. A market stays open until the event is decided, which can take minutes or months.

b⁴ is an opinion market. Its questions are subjective, so there is no outside event to wait for: each market settles on what the majority of its voters believe when it closes, within 24 hours, and the nightly board resolves live on B Feud. Stakes start at $1 in USDC on Solana. On Polymarket, the edge is knowing the world. On b⁴, it is knowing the crowd.

Side by side

b⁴ and Polymarket compared on resolution source, time to resolve, surface, who it’s for, and live show
Featureb⁴Opinion marketPolymarketPrediction market
Resolution source

The crowd

Majority vote at close. No outside event, data feed, or oracle.

Real-world outcome

Checked against each market’s stated resolution source, usually finalized through UMA’s optimistic oracle.

Time to resolve

Within 24 hours

The nightly board resolves live at 9 PM ET.

Minutes to months

When the event is decided.

Surface

iOS and Android

Mobile-only. USDC on Solana.

Web, iOS, and Android

Who it’s for

Anyone with a take

Stakes from $1. One device, one wallet, one vote.

Traders and forecasters

Pricing news, politics, sports, and crypto.

Live show

Yes

B Feud, every night at 9 PM ET.

No

Sources: polymarket.com, Polymarket docs: resolution. Checked October 2026. Products change; check Polymarket’s site for current details.

Try b⁴ tonight.

Stake from $1 on the day’s board, then watch it resolve live on B Feud at 9 PM ET.

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iOS and Android. USDC on Solana.

Questions

Is b4 a prediction market?
No. b⁴ is an opinion market. Prediction markets settle on whether a real-world event happens, checked against an oracle or a data source. b⁴ questions are subjective, so each market settles on what the majority of its voters believe when it closes — the crowd is the oracle. Markets close within 24 hours, and the nightly board resolves live on B Feud.
How does B Feud work?
B Feud is b⁴’s live show, every night at 9 PM ET. During the day you stake on the board’s questions in the app. At showtime, host Barry brings each question to the room: you get 20 seconds to call the side and guess what share of the room picked YES, then the room’s answer is revealed and the market resolves. You score for calling the right side and for how close your guess lands, and top scorers can win a share of the night’s prize pool. You can watch and play in the b⁴ app on iOS and Android.
b4 vs Polymarket: what’s the difference?
Polymarket is a prediction market: it settles on real-world outcomes using each market’s stated resolution source, usually through UMA’s optimistic oracle, on timelines from minutes to months. b⁴ is an opinion market: it settles on the majority of its own voters at close, within 24 hours, and the nightly board resolves live on B Feud. b⁴ is mobile-only, with stakes from $1 in USDC on Solana.

More comparisons

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