Kimi K3 costs $4.65 per run and delivers 2.8× more work per dollar than Fable 5

FinanceYF5 · x · 2026-07-21

Kimi K3 costs $4.65 per run versus $13.41 for Fable 5. On a $100 budget, Kimi solves 14.7 tasks while Fable solves 5.3, giving Kimi 2.8× more work per dollar.

The tradeoff is speed: Kimi’s median run takes 66 minutes, compared with 21 minutes for Fable. The poster expects latency to improve once the model is officially released and broadly available.

Related event: Kimi K3 Closes Gap with Fable 5 in Software Tasks, Signaling Open-Source Parity(6 posts)→

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