A market is a question.
"Fed cuts rates in June?"
YESNO
$0$0.50$1
$0.42=42%chance it happens
A YES share pays $1 if it happens, $0 if not. Its price is the probability the crowd gives it.
Engine online · 227 days of published results since March 11, 2026
Prediction market arbitrage.
Neural Bet is an autonomous arbitrage engine. It finds price gaps between Polymarket and Kalshi and takes the same position on both sides in 92 ms. It never predicts an outcome: it locks the gap.
Example · how a gap is locked
92 ms
"Fed cuts rates in June?"
Filled
PolymarketYES
$0.42
Filled
KalshiNO
$0.55
YES $0.42NO $0.55
cost $0.97always pays $1.00
+$0.03locked, YES or NO
- 1Ingest
- 2Match
- 3Price
- 4Execute
92msto take both sides of a gap
24/7the engine runs day and night
0predictions: the gap is locked, not guessed
227dayspublished one by one, negative days included
your funds are transferred to NeuralBet and placed in a dedicated vault
01Start here
Prediction markets, explained in 90 seconds.
No finance background needed. Three ideas are enough to understand exactly what the engine does, and why it never needs to predict anything.
Two venues, two prices.
"Fed cuts rates in June?"
Polymarket$0.42
Kalshi$0.45
$0$0.50$1$0.00
3¢ gap
Polymarket and Kalshi price the same question separately. For a few minutes, they disagree.
Buy both sides for less than $1.
YES $0.42NO $0.55always pays $1.00
cost $0.97
+$0.03 locked, YES or NO
YES on one venue, NO on the other: one of them always pays $1. Pay less than $1 in total, and the difference is yours.
See it for yourself
Choose the price gap between the two platforms and an amount. Whatever the market decides, the result is the same.
Price gap between the two platforms
Amount
Fees and price changes during execution (1.3%) are already deducted.
You keep, whatever happens
+$53
The engine would take this one
If the market ends YES+$53
If the market ends NO+$53
The result is the same in both cases: the engine earns the price difference without predicting the event’s outcome.
Show the calculation
Pairs bought3 093 (YES $0.42 + NO $0.55 = $0.97)
Payout at resolution$1.00 × 3 093 = $3 093
Gross gain+$93 (+3.09%)
Fees and price changes−$39 (1.31%)
You keep+$53 (+1.78%)
02How it works
Four steps. Under one second.
The engine accounts for both possible outcomes. Follow an operation from the price difference identified to the result obtained.
01 · Ingest
Read every order book in real time.
A persistent, low-latency mirror of every active market on Polymarket and Kalshi. Full depth, no polling: the engine listens to the venues' live streams.
Round-trip 24 ms · 31 ms · 1 204 markets tracked
02 · Match
Recognise identical markets.
A language-model pipeline maps both venues to canonical contracts, so "Trump wins 2028" on Polymarket and its Kalshi twin are treated as the same question, priced differently.
Canonical id mkt_a9f2 · PM + KAL
03 · Price
Calculate the gain after costs.
Fees, price changes during execution, settlement risk and USDC/USD conversion are all included. The engine starts the operation if the remaining difference exceeds the required threshold.
Gross 3.09% → net 1.78%
04 · Execute
Take both sides. Atomically.
Buy YES on the cheaper venue and NO on the other, simultaneously, within a single 92 ms window. If one leg fails, the other is unwound instantly.
YES 0.42 + NO 0.55 → locked +$0.03 · 92 ms
Under the hood
Fund management
How your funds are managed.
Your funds are transferred to NeuralBet and placed in a secure vault. They are used for arbitrage operations. You can follow every transaction in the mini app.
Capacity
Current capacity: $50M.
Capacity evolves over the months with market liquidity. Position sizes always adapt to the liquidity available: the engine never forces an execution.
Transparency
Every day, published.
You can track your capital and every transaction in the mini app. Results are updated every day, including negative days. Nothing is smoothed, nothing is hidden.
03Performance
The results. Day by day.
Net performance after fees: exactly what is credited to clients. Every day since March 11, 2026, including the 4 negative ones.
Growth of $10,000
$23 320
▲ +133.20% · 227 days · since March 11, 2026
Profits are credited daily and not reinvested. Past performance is not indicative of future results.
Positive days
98.2%
223 of 227 days
Largest decline
−0.28%
from the highest value reached
Average per day
+0.59%
best day +1.30%
Longest positive streak
148
consecutive days
Monthly returns
Every month since launch has closed positive. Below, each square is one day: hover it to read the result.
+14.7%Mar
+21.1%Apr
+15.6%May
+22.7%Jun
+22.6%Jul
+13.7%Aug
+13.1%Sep
+9.7%Octin progress
negative daypositive day, from small to large
04FAQ
The questions people ask before they write to us.
Straight answers. If yours is missing, just ask.
Your question is not here? Write to us: a human replies in under 20 minutes.
Write to usWhat is prediction market arbitrage?
A prediction market prices a question: a YES share at $0.42 means a 42% chance. Polymarket and Kalshi price the same questions separately. When YES on one platform plus NO on the other costs less than $1, buying both sides locks a gain whatever the outcome: that is arbitrage, and it is exactly what the Neural Bet engine does, in 92 ms.
Where do my funds go?
Your funds are transferred to NeuralBet and placed in a secure vault. They are used for arbitrage operations. You can follow every transaction in the mini app.
What happens when there is no arbitrage opportunity?
The engine sits flat. We would rather earn zero than force a bad execution. On a calm day, it completes fewer than 100 arbitrages; on a volatile day, more than 200.
How do you charge?
Arbitrage fees. Only on profits. Neural Bet keeps 50% of the profits generated, and nothing else: no subscription, no management fee, no hidden cost. If the engine makes no profit, you pay nothing. Every figure on this site is already net of this share.
Card payment fees. 3% is added to the payment; these fees are not credited to Neural.
Card payment fees. 3% is added to the payment; these fees are not credited to Neural.
How does payment by bank card work?
Payment by card currently involves purchasing an artificial intelligence training course from Académie IA, for an amount corresponding to the amount you wish to credit to Neural. Card fees of 3% are added to the price of the training course. The total paid includes these fees, while the Neural credit remains equal to the price of the course.
Once the payment has been validated, you receive access to your training course and Neural credits your account with the same amount within the next few minutes, so you can start arbitrage.
You therefore receive both the training course and the equivalent credit in your Neural account.
The amount credited in this way and the associated gains can be withdrawn after 30 days.
Is this legal where I live?
Yes. Neural Bet operates within a fully legal framework. We do not accept US clients (citizens or residents of the United States), nor persons subject to US sanctions. Rules vary from one country to another: write to us and we will review your jurisdiction with you.
05 · Get access
Stop watching inefficiencies disappear without you.
We are running at scale and opening a limited number of additional accounts for Q4 2026. Write to us: a human replies in under 20 minutes.
Write to us
No pitch deck. No calendar link.
Beware of fake accounts: our only official contact is @neuralbetsupport. Always check this handle before sending funds, and never share your passwords or recovery phrase.