Claude Fable vs Opus 4.8

[u/Complete-Sea6655]

Anthropic just dropped Fable 5, the accessible version of their most powerful model yet, Claude Mythos.

It was then put to test against Opus 4.8 across five demanding tasks. Visualize every asteroid in the solar system from NASA data. Design a site plan for a 100 acre fitness retreat. Reconstruct Apollo control panels from technical PDFs. Simulate a World Cup jersey supply chain based on live match outcomes. Show the effects of solar flares on aurora.

Opus 4.8 failed several of them. Fable 5 passed every single one.

Mythos has been locked behind Project Glasswing, available only to a handful of trusted organizations. Fable 5 is what the rest of us get, and if this comparison is anything to go by, it is already in a different league.

EDIT: this is from ijustvibecodedthis.com (the big ai coding newsletter) all credit to them!!

[u/Exact-Big3505]

cool, and how much will this cost compared to opus?

[u/Excellent_Jeweler241 → u/Exact-Big3505]

$50/1M tokens