When to use DeepSeek-V4.1-Flash
Field-test, Max effort, private repo to 512k. Reading 60/64 each. Kimi 8/8 vs DeepSeek 7/8 repairs. Bill $1.70 vs $31.75
Bot Sitting: When to Trust / Review AI Agent Code
Five settings for agent PRs, the rule that picks between them, and the paths that never get Full auto
Model Routing Layers and the Prompt Cache Tax
One model switch cost 5x a warm turn at 10,000 tokens and 11x at 60,000, measured across three session sizes.