21:12
2026-07-13
cognition.com
artificial-intelligence
Making Fable Cheaper Than Opus
Cognition replaced Opus 4.8 with Fable 5 in its Devin coding agent, finding that despite Fable's 2x higher per-token cost, the Fable-led agent with a sidekick cost 9% less per run ($1.86 vs. $2.04) an…