Anthropic Extends Claude Fable 5 Availability Again Through July 19 — Willison Calls the Uncertainty a Competitive Liability

Summary

Anthropic has again extended Claude Fable 5's availability across all paid plans, this time through July 19, 2026 — usage is capped at half of a user's weekly limit before falling back to usage credits or a model switch. Simon Willison notes Anthropic's original reasoning centered on compute constraints and uncertainty about demand, and contrasts this with OpenAI's posture around GPT-5.6 Sol: OpenAI has removed usage restrictions and shipped efficiency improvements, projecting confidence in its