Anthropic has extended the deadline for Claude Fable 5's included access on paid plans through July 12, 2026, up from the original July 7 cutoff, announced on Anthropic's official channels. Pro, Max, Team, and select Enterprise subscribers can use Fable 5 for up to 50 percent of their weekly usage limits until then. After the window closes, access shifts to prepaid usage credits at $10 per million input tokens and $50 per million output tokens, the highest pricing Anthropic has published for a generally available model. Fable 5 sits in Anthropic's new Mythos class, a tier above Opus, and leads knowledge work benchmarks while handling long, complex reasoning. The article lists ten recommended actions to take with Claude Fable 5 before it stops being free, including running archives through it, building a first serious agent, turning repetitive jobs into agentic workflows, creating a personal AI chief of staff, pressure-testing a company's AI strategy, building a prompt and workflow library, and benchmarking Fable against an everyday model.