← All gamesLive demo · simulated

Jev Trading Bot

Every tick is one real Jev call: the price series goes to the API, Jev calls buy, hold or sell, we execute at the current price. Watch the decisions climb and the P&L move — each one in milliseconds, for a fraction of a cent. Paper trading, not advice. Press play.

0decisions
mslast latency
$0.00000Jev cost
+0.0%P&L
$10,000equity
$99.14FLAT · all cash
0 input tokens · tick 0/40
Decision stream
press play — watch Jev trade live

Paper trading on a locally-simulated price — no real market data, no real money, not investment advice. It's a live demo of Jev making a typed decision every tick.

This is the same decision API you can put in your own app — a typed choice/score/noul call in ~100–300ms. Get a key and build with it.

How Jev trades

Every tick is a real Jev API decision. The recent price series of a locally-simulated stock — plus Jev's current position and cash — is sent to the Jev endpoint as a typed choice over BUY, HOLD and SELL, and Jev returns the one it judges best in roughly 100–300ms. We execute the trade at the current price, advance the simulated market, and ask again. Forty ticks a session, each one a genuine call to the model.

The counters are the point: the decision count, per-tick latency and running cost (billed at Jev's own $0.042 per million input tokens) are the exact numbers a developer sees when Jev runs inside a product. The chart just makes those decisions visible — you are watching the API trade, live.

This is a paper-trading demo — not advice

The price is generated in your browser with a random walk. There is no real market data, no real money, and no real strategy — Jev is a general decision model, not a trading system. Some sessions end up, some end down; that variance is the honest part of the demo.

Nothing here is investment advice. It exists to show a general System One model making a typed decision every tick, cheaply and in milliseconds — the same call shape you'd use to route a ticket or gate an agent, pointed at a toy market.

The numbers on the chart

  • Decisions — how many real Jev API calls have been made this session.
  • Last latency — the round-trip time of the most recent decision, usually 100–300ms.
  • Jev cost — the running cost of the session at Jev's $0.042 / million input tokens.
  • P&L & equity — how the simulated portfolio moved on Jev's live calls.

FAQ

Is this real trading?

No. It is paper trading on a price series simulated in your browser — no real market data, no real money, no brokerage. It is a live demo of Jev making a typed BUY / HOLD / SELL decision every tick.

Is this investment advice?

No. Jev is a general decision model, not a trading strategy, and the market here is random. Nothing on this page is financial advice — it is a demo of the decision API.

Is the AI really deciding each trade?

Yes — on every tick the recent prices and Jev's position are sent to the Jev API, which returns a typed choice of buy, hold or sell. There is no hard-coded strategy.

How much does each decision cost?

A fraction of a cent. Each tick is one API call of a few hundred input tokens; at Jev's $0.042 per million input tokens a whole session runs for well under a cent, and the page shows the running total.

More: Watch Jev play 2048 · Watch Jev play Tetris · All decision games · Jev API docs

Jev Trading Bot — watch AI paper-trade live · Jev by TypeSafe AI