b⁴ vs Morfi: two designs for opinion markets

Morfi and b⁴ are both opinion markets: neither waits on a real-world event or an oracle. The difference is how a market ends. On Morfi, prices move as people buy and sell positions, markets can have more than two outcomes, and there is no fixed timer — a market settles once one outcome has held the money lead long enough. Morfi is still in public beta on testnet, with test funds.

On b⁴, every market is a yes-or-no question on a clock, live on Solana mainnet with real USDC. Your stake is your vote, capped at one vote per device, so a bigger stake never buys extra votes, and the majority of voters at close decides within 24 hours. Morfi has no whale or sybil guard: anyone can create multiple wallets and pile onto a side to take the money lead. Early stakes on b⁴ earn up to 2× money weight, and the nightly board resolves live on B Feud at 9 PM ET.

Side by side

b⁴ and Morfi compared on resolution source, whale and sybil resistance, time to resolve, surface, network, who it’s for, and live show
Featureb⁴Opinion marketMorfiOpinion market
Resolution source

The crowd

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

Money flow

An outcome wins once it holds the money lead long enough. No oracle.

Whale and sybil resistance

Yes

One wallet per device, and a vote never counts more than once, however big the stake.

No

Anyone can create multiple wallets and pile onto a side to take the money lead.

Time to resolve

Within 24 hours

The nightly board resolves live at 9 PM ET.

No fixed timer

Settles when one side holds the lead long enough.

Surface

iOS and Android

Mobile-only. USDC on Solana.

Web and iOS

Network

Solana mainnet

Live, with real USDC.

Testnet

Public beta with test funds.

Who it’s for

Anyone with a take

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

Position traders

Buy and sell positions on debates, including multi-outcome markets.

Live show

Yes

B Feud, every night at 9 PM ET.

No

Sources: morfi.markets, Morfi docs. Checked October 2026. Products change; check Morfi’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.
b4 vs Morfi: what’s the difference?
Morfi and b⁴ are both opinion markets: neither waits on a real-world event or an oracle. The difference is how a market ends. On Morfi, prices move as people buy and sell positions, markets can have more than two outcomes, and there is no fixed timer — a market settles once one outcome has held the money lead long enough. Morfi is still in public beta on testnet, with test funds. On b⁴, every market is a yes-or-no question on a clock, live on Solana mainnet with real USDC. Your stake is your vote, capped at one vote per device, so a bigger stake never buys extra votes, and the majority of voters at close decides within 24 hours. Morfi has no whale or sybil guard: anyone can create multiple wallets and pile onto a side to take the money lead. Early stakes on b⁴ earn up to 2× money weight, and the nightly board resolves live on B Feud at 9 PM ET.

More comparisons

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