Will xAI release Grok 5 before Jan 1, 2027
Leader sits at 86% across 3 bound outcomes, runner-up at 80%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.
Leader probability
Before 2027
Outcomes
3
winner-take-all
Runner-up
80¢
Before October
Spread
6pp
contested
24h volume
$260
thin orderbook
Closes
Jan 1, 2027
237 days
Venue
Kalshi
3 bound
30-day trend
Bracket family
How the bracket ladder is priced.
Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.
Cluster 1
Will xAI release Grok 5 before
Analysis
This probability reflects a roughly even-odds assessment that xAI will publicly release Grok 5 within approximately 8 months. The timeline is compressed relative to typical AI model release cycles, with most major labs (including Anthropic, valued at 90 cents for Claude 5 before January 2027) showing similarly constrained windows. The 54% probability suggests meaningful uncertainty about whether xAI accelerates its development roadmap or encounters delays. Key drivers include xAI's stated development velocity, competitive pressure from other frontier labs, and available compute resources. The resolution hinges on whether an official public release or deployment occurs before the January 1, 2027 deadline, though definitions of 'release' (beta vs. full deployment) could introduce interpretation questions during resolution.
- ›xAI's recent development pace: Grok 4 release timing and subsequent updates provide the strongest signal for predicting when Grok 5 might launch
- ›Competitive timing: Anthropic's Claude 5 release odds at 90% suggest industry-wide acceleration, which could either accelerate or delay xAI's roadmap depending on market dynamics
- ›Frontier AI model release interval: Historical data shows 6-18 month gaps between major versions at leading labs; an 8-month window aligns with accelerated but not unprecedented timelines
- ›Compute availability: xAI's access to training infrastructure directly constrains development speed and would determine feasibility of meeting the 2026 deadline
- ›Market definition clarity: Resolution depends on whether 'release' includes limited beta access or requires broad public/commercial availability
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
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