Opus 5 Killed the Fable Tax
Anthropic shipped Claude Opus 5: near-Fable-5 intelligence at Opus 4.8's exact price ($5/$25), plus an effort dial that trades cost for capability. On Anthropic's own numbers it's within 0.5% of Fable at half the cost. One-stop-shop — what shipped, what's rumor, what to switch to.