Post
The New Stack
thenewstack.io
did:plc:kfaqksbyr3zwzvzj3wpbpvac
Anthropic says its new Opus 5 comes close to Fable 5 at half the cost. I ran both on three reasoning tasks and tracked every dollar. Opus is better with facts, but Fable reads between the lines.
https://bit.ly/4w0FzVu
2026-08-02T19:30:36.265Z