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Source: [Hacker News](https://tjoresearchnotes.wordpress.com/2026/08/02/reaping-without-sowing/)
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I've been using DeepSeek v4 flash for guided agent workflows (in-IDE, prompt/review diffs) and have found no noticeable benefit to using Haiku, Opus, Sonnet in this workflow. For around a dollar a day, I am able to more than double my own productivity. What are the frontier models for/what are ...