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Will the next Fable model (5.2+) debut with a Humanity's Last Exam score of 50% or higher?
Next Fable Model (5.2+): Humanity's Last Exam Debut?
Provider end date; confirm observation window in the rules.
Contract resolution rules
Predicts whether the next Claude Fable 5.2+ model scores 50%+ HLE Accuracy on agi.safe.ai.
Conditions for a winning outcome
Resolves Yes if a model whose name includes Fable and version is 5.2 or higher is newly added to the HLE results at agi.safe.ai, and its displayed HLE Accuracy is at least 50% at 12:00 PM ET on the calendar day after first appearance. If multiple qualifying models are added the same day (ET), the highest HLE Accuracy is used. If the site is unavailable at the deadline, resolution waits until the first subsequent instance the model's HLE Accuracy becomes available. Models added on the calendar date following the initial qualifying model's first appearance are excluded.
Exclusions and exceptions
Resolves No if the qualifying model's displayed HLE Accuracy is below 50%, if it is removed and not re-added such that it is not displayed at 12:00 PM ET on the calendar date following its first appearance, if no qualifying Fable 5.2+ model is added by June 30, 2027 11:59 PM ET, or if the site remains unavailable through the seventh day after first appearance.
Timing & resolution
12:00 PM ET on the calendar date following the qualifying model's first appearance on agi.safe.ai, with a hard no-event date of June 30, 2027 11:59 PM ET and a seven-day fallback after first appearance.
Ambiguities in the rules
The source clearly defines the relevant model as the first qualifying model to appear (initial qualifying model's first appearance) and sets an explicit hard cutoff of June 30, 2027 11:59 PM ET, after which no qualifying model can trigger resolution. No material ambiguity remains.
AI-assisted explanation of this version of the source rules. It does not replace the provider’s terms.
Original resolution rules
Outcome prices and implied probabilities
Compare the quoted price for each outcome. The amounts below assume a $1 payout for a winning share.
Prices describe trading, not certainty or an independent forecast. Bid / ask for the first outcome: 0.961 / 0.991. Market liquidity is not guaranteed fill size.
Fetched 2026-10-24T14:00:09+00:00 · Provider updated 2026-10-24T13:58:39.369499Z
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