Fetching from the wire…
01
02
03
04
05
06
07
08
Models2026-06-29 · source-backed
Morph lays out the practical fallout of the June 12 export directive. Because access can't be gated by nationality in real time, the two top SWE-bench Verified coding models, Claude Mythos 5 at 95.5% and Fable 5 at 95%, went dark for all users. That leaves Opus 4.8 at 88.6% Verified as the practical frontier you can actually use today. Plan your model fallbacks accordingly, and don't build a workflow that assumes a model you can be cut off from by policy overnight.
Each link below shares sources, entities, or timing with this story.
Anthropic released Fable / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Anthropic released Fable); both cover Claude Mythos, Fable, Mythos, Opus; overlapping topics (access, around, claude, fable, model).
Claude Mythos benchmarked against Claude / Shared entities / Same source domain / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Claude Mythos benchmarked against Claude); both cover Fable, Mythos, Opus; reported by the same outlet (morphllm.com).
Anthropic released Fable / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Anthropic released Fable); both cover Fable, Mythos, Opus, Plan; overlapping topics (directive, model).
Linked by a graph relationship (Anthropic released Fable); both cover Fable, Mythos, Opus; overlapping topics (access, actually, fable, model).
Simon Willison uses Fable / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Simon Willison uses Fable); both cover Opus, SWE, Verified; overlapping topics (claude, coding, model).
Simon Willison uses Fable / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Simon Willison uses Fable); both cover Fable, Mythos, Opus; overlapping topics (claude, fable, model, mytho).
Anthropic released Fable / Shared entities / Shared topic / What happened next / Tension
Linked by a graph relationship (Anthropic released Fable); both cover Fable, July, Opus; overlapping topics (claude, fable).
Claude Mythos benchmarked against Claude / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Claude Mythos benchmarked against Claude); both cover Fable, Mythos, Opus; overlapping topics (claude, fable, model).