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Fable 5.1

watching29% by Aug 31
AnthropicSOTA scope

Leaked Jul 26 for August, now slipped — market has Sep 30 at 78%, Aug 31 at 25% · pricing said to hold at $10/$50. Swept every 60 seconds across provider catalogs. The moment it answers on a public API, every channel you've switched on fires — email and Chrome push are free.

Read the full Fable 5.1 deep-dive → — the leaks, the launch story, the official word, all on one page.
Timeline
Live release odds
Fable 5.1 released by Aug 3129%
Fable 5.1 released by Sep 1567%
Fable 5.1 released by Sep 3077%

via Polymarket · markets are sentiment, not a promise — the alert only fires on a real API answer

The official word

We alert on verified API behavior, never on announcements alone — but when Anthropic speaks, it's here: anthropic.com/news

Hear the minute Fable 5.1 drops.

Watch it free — email + Chrome push, no card. Paid tiers add instant SMS and the phone call. Also: the wire · the bench index · our track record