models · anthropic

Claude Fable 5

Claude Fable 5 — catalogued from third-party evaluation data; no weights held by Sovereign Frontier.

What this registry has checked

Closed. A third party reports this model and we have recorded their numbers. Nothing of our own: no weights seen, no publisher hash held. Treat every figure here as their claim.

Method	third-party-report

Re-check this yourself → Source → Full record →

What is recorded

Publisher	anthropic
Origin	United States
Licence	Anthropic-TOS
Context window	1,000,000 tokens
Modality	text+image+file->text
Pulls recorded here	7

Reported scores

GPQA Diamond	92.6
IFBench	63.5
Humanity's Last Exam	55.5

Reported by a third party and recorded here, not re-run by us. Source: artificialanalysis.ai/api/v2.

Elsewhere in the registry

All models → Browse with filters → What will run on my hardware? →

Registry record as of 2026-07-26. Identity, licence and parameter count are properties of a release and do not move; tier can, and the verify link above re-checks it against the live registry rather than this page.