The predicted likelihood that Anthropic will extend Claude Fable 5 paid-plan access by July 19 dropped sharply by 28.0 percentage points over 24 hours, sliding from 77.5% to 49.5% on Polymarket. This significant repricing occurred amid $44K in trading volume, signaling heightened market attention.
Notably, whale activity diverged from the price movement. While the YES contract price plunged, large traders did not increase their net bets on YES. This disconnect between whale flow and market price suggests that the price decline was driven more by retail or smaller participants rather than large, informed bets.
The market’s reassessment reflects a substantial shift in sentiment about Anthropic’s decision timeline for Claude Fable 5. The divergence between price and whale flow raises questions about the underlying forces at play, hinting at either cautious whale positioning or a fragmented market reaction.
Overall, the combined price drop and contrasting whale behavior underscore uncertainty around the extension of Claude Fable 5 paid-plan access, highlighting a complex environment where retail and whale signals are misaligned.
| Market | Will Anthropic extend Claude Fable 5 paid-plan access again by July 19? |
|---|---|
| Market ID | 2898504 |
| 24h price change | +28.0 pp |
| YES now (PM Breaking) | 49.5% |
| YES ~24h ago (est.) | 77.5% |
| YES (Polydata overview) | — |
| Whale net flow (24h) | $0 |
| Whale buy / sell (24h) | — / — |
| Unique whales (24h) | — |
| Volume 24h (PM) | $44K |
| Unique traders (Polydata) | — |
Source: Polydata API v3 · /whales/flow + Polymarket Breaking · snapshot 2026-07-18. Data: Polydata API v3. On-chain figures are public. Realized PnL is computed over resolved markets only and excludes open positions, so it is conservative versus the Polymarket UI. This is not investment advice.