Grok 4.4 released by 2026?

Platform comparison

Market context

The real-world event is xAI’s imminent public rollout of Grok 4.4, a 1-trillion-parameter model Musk confirmed will arrive within two to three weeks, yet the market currently prices a 0% chance of public availability by June 2026. This stark divergence between the announced timeline and the zero implied probability mirrors past cases where incremental model updates faced delayed public access despite private beta success. For instance, Grok 4.5 was announced in late June 2026 but remains locked in private beta with SpaceX and Tesla, with no public date set, running roughly a month behind its original late-May target[1][4]. Historical patterns show that even when xAI confirms a model’s capability, the gap between private testing and public release can stretch significantly, as seen with Grok 4’s two-week teaser-to-launch window in 2025 versus the current multi-week delay for 4.5[5].

Traders should monitor xAI’s official channels for the public launch announcement of Grok 4.4, which Musk stated will occur within roughly two to three weeks from his late-June post, with training data through early April[3]. Key catalysts include any shift from private beta to public access, similar to the progression from Grok 4 to 4.1, and updates on Grok 4.5’s rollout, which is expected in four to five weeks at 1.5 trillion parameters[1][3]. The market’s 0% probability appears inconsistent with the explicit timeline Musk provided, suggesting a potential mispricing if xAI adheres to its schedule. Analysts note that while Grok 5’s pre-training completes in two months, the realistic public release window for earlier variants like 4.4 could fall in late 2025 or early 2026, well before the settlement deadline[3]. Divergence between sportsbook lines (which often ignore tech timelines) and prediction-market implied probability highlights a niche where contract specifics on release dates create unique odds compared to broader tech sentiment.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi vs Polymarket, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.