Vercel Sandbox persistence reached general availability on May 26, 2026. The change: Sandboxes now automatically save and restore filesystem state between sessions, and persistence is on by default. The result: an isolated-execution primitive that...
Claude Fable 5: Anthropic’s First Public Mythos-Class Model
Claude Fable 5 is being billed as Anthropic's first publicly-available Mythos-class model. In this post, we take a closer look at what's been announced, what's still unclear, and what it could mean for the broader AI landscape.
















