Kimi K3 vs Fable 5 Evaluation
ZainHasan6 · x · 2026-07-18
A discussion based on the DeepSWE software engineering evaluation compares the performance of Kimi K3 and Claude Fable 5.
Key takeaways:
- Evaluation results show that Kimi K3 achieves performance close to Fable 5 on software engineering tasks.
- Priced at roughly 35% of Fable 5, Kimi K3 offers a massive cost advantage.
- Kimi K3 also demonstrates an edge under higher pass@k settings.
The original poster concludes that the gap between open-source/frontier models and closed-source frontier models no longer seems to be a simple "six months behind."
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