b⁴ vs FactMachine: two takes on crowd-consensus markets

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.

b4 vs FactMachine: what’s the difference?

FactMachine and b⁴ sit close together. Both turn subjective questions into markets, and both settle on what the crowd says rather than on an outside event or oracle. On FactMachine, you vote on a question and predict how the crowd will split; the side that wins the vote pays out. It runs on the web, with an iOS app announced, and is still in beta on testnet. On b⁴, you swipe a question and stake on your side from $1, and the majority of voters at close decides the market within 24 hours. b⁴ is live on Solana mainnet with real USDC, and it resists whales and sybils: one device holds one wallet and one vote, and a bigger stake never buys extra votes. FactMachine has no such guard, so anyone can create multiple wallets and pile onto a side to win. b⁴ is also mobile-only, and its nightly board resolves live on B Feud, where players guess the room’s split.