Grok 4.6 released by 2026?

Platform comparison

Market context

SpaceX's xAI division must release a Grok model explicitly versioned 4.6 or a direct successor variant (4.75, etc.) to the general public by mid-August 2026 for this market to settle affirmatively. The release window spans roughly 20 months from the present, requiring xAI to move from its current Grok 4.5 baseline through at least one numbered increment and complete a public rollout. The 0% crowd probability reflects genuine uncertainty about whether xAI will pursue incremental versioning at all, given the company's historical preference for larger generational jumps and the competitive pressure to leap directly to Grok 5 rather than iterate within the 4.x series.

Historical precedent matters here. Anthropic's Claude line has favoured major version steps (3 to 3.5 to 4), whilst OpenAI compressed iterations into point releases (GPT-4 Turbo, GPT-4o). xAI released Grok 4.5 in late 2024 after a lengthy gap from 4.4, suggesting the firm may skip intermediate steps entirely. A power-user tracking this market programmatically should monitor xAI's public roadmap statements and Elon Musk's X posts for explicit version naming, since the resolution hinges on nomenclature rather than capability benchmarks.

Catalysts to watch include any xAI announcements at tech conferences (CES, GTC, or internal X events), quarterly updates from xAI leadership, and competitive moves by Anthropic or OpenAI that might force xAI's hand on release timing. Recent reporting from The Information and Reuters on xAI's funding rounds has outlined aggressive scaling plans, but neither source has signalled a 4.6 release schedule. The absence of public roadmap detail, combined with xAI's track record of surprise launches, keeps this market's low probability defensible through mid-2026.

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 Polymarket Review UK, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

UK Frequently Asked Questions

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 Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.