Anthropic · model release forecast
When is the next Fable Model (5.2+) expected to be released?
Market-implied median · middle 50%: Oct 10 to Oct 21
77% within a week95% within a monthPrediction markets currently put the next Fable Model (5.2+) release around Oct 14, 2026, with a middle-50% window from Oct 10, 2026 to Oct 21, 2026. Markets imply a 77% chance of landing within a week of that date, and 95% within a month. The estimate is based on 9 active deadline contracts with $95K of traded volume. It has moved 35 days earlier over the past 30 days.
Release alerts
Get told when this date moves
One email the day before the the next Fable Model (5.2+) forecast date, and one on the day itself. Two emails per release, nothing else.
The evidence
Release probability by deadline
| Deadline | Probability bar | Probability |
|---|---|---|
| By Oct 8, 2026 | 18% | |
| By Oct 9, 2026 | 24% | |
| By Oct 10, 2026 | 28% | |
| By Oct 12, 2026 | 42% | |
| By Oct 14, 2026 | 51% | |
| By Oct 17, 2026 | 66% | |
| By Oct 24, 2026 | 86% | |
| By Oct 31, 2026 | 94% | |
| By Dec 31, 2026 | 97% |
Forecast history
How this estimate has moved
Since Sep 6, 2026 the expected release date for the next Fable Model (5.2+) has moved 35 days earlier, from Nov 18, 2026 to Oct 14, 2026.
Common questions
About the Next Fable Model (5.2+) forecast
When is the next Fable Model (5.2+) expected to be released?
Prediction markets currently put the next Fable Model (5.2+) release around Oct 14, 2026, with a middle-50% window from Oct 10, 2026 to Oct 21, 2026. Markets imply a 77% chance of landing within a week of that date, and 95% within a month. The estimate is based on 9 active deadline contracts with $95K of traded volume. It has moved 35 days earlier over the past 30 days.
How precise is the Next Fable Model (5.2+) release date forecast?
Markets place 77% of the probability within a week of the median date and 95% within a month. A date with only a few percent inside a week should be read as a month, not a day.
Where does the Next Fable Model (5.2+) release forecast come from?
Each public "released by <date>?" contract on Polymarket gives one point on a cumulative probability curve. Release Oracle sorts those points, corrects small inconsistencies, then interpolates the 50% crossing for the headline date and the 25% and 75% crossings for its uncertainty window. Forecasts are market signals, not lab announcements, and can be wrong.
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