Claude Fable 5 vs. Kimi K3: Same results, one-third the cost, 4x slower
The New Stack 2 months ago 55 ● 7 sources
Moonshot AI's Kimi K3 model matched Anthropic's Claude Fable 5 line-for-line on three production coding tasks while costing roughly one-third as much ($2.13 versus $5.98 total). Kimi K3 took 28 minutes 18 seconds to complete all three tasks compared to Fable 5's 6 minutes 49 seconds—4x slower despite identical or near-identical outputs. The speed penalty makes Kimi K3 less practical for professional workflows despite its price advantage, though as a new release it may improve with future updates.