My coding model + harness stack: Kimi K3 tops OSS, Claude Code doubles the cost
Yuchenj_UW · x · 2026-09-20
Yuchen shares his current model + harness stack for coding: Kimi K3 as the best OSS coding model with GLM-5.3 next; DeepSeek V4.1 Flash for easy/moderate tasks thanks to its speed and cost; Astra for complex work; and a note that Codex pairs better with OSS models while Claude Code can make the same model cost 2x more.
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