Kimi K3 is competitive with Fable; Kimi K3 + Fable is SoTA.
Fireworks ran roughly 1,030 agentic tasks across five categories -- SWE-bench-style software engineering, terminal work, algorithms, multi-language implementation and legal -- and found Kimi K3 and Fable 5 essentially level on headline accuracy, 92.4 percent against 92.6 percent on the SWE set. The interesting result is not the tie but the split: K3 takes terminal and cryptographic work, Fable takes web and multi-language, and routing between the two beats either alone while cutting cost by up to 50x, because K3 absorbs 72 to 96 percent of traffic at much lower token expense. The Hacker News thread is the counterweight and worth reading alongside it: recurring claims that both models are benchmaxxed, reports that K3 burns budget fast despite the cheaper per-token price, mixed accounts of how it holds up on genuinely hard work, and questions about what Kimi's terms permit doing with user content. A vendor benchmark and its comment section, taken together.
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